Dave Beckett Nikki Rogers Participants in W3C's Semantic Web Deployment Working Group. Alistair Miles Sean Bechhofer An RDF vocabulary for describing the basic structure and content of concept schemes such as thesauri, classification schemes, subject heading lists, taxonomies, 'folksonomies', other types of controlled vocabulary, and also concept schemes embedded in glossaries and terminologies. SKOS Vocabulary DICOM PS3.16 DCMR Annex D DICOM Controlled Terminology Definitions; converted by "extractdcmdefinitionsasowl.xsl". DCM 2025b_20250411 The range of skos:altLabel is the class of RDF plain literals. skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties. alternative label An alternative lexical label for a resource. Acronyms, abbreviations, spelling variants, and irregular plural/singular forms may be included among the alternative labels for a concept. Mis-spelled terms are normally included as hidden labels (see skos:hiddenLabel). change note A note about a modification to a concept. definition A statement or formal explanation of the meaning of a concept. editorial note A note for an editor, translator or maintainer of the vocabulary. example An example of the use of a concept. The range of skos:hiddenLabel is the class of RDF plain literals. skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties. hidden label A lexical label for a resource that should be hidden when generating visual displays of the resource, but should still be accessible to free text search operations. history note A note about the past state/use/meaning of a concept. note A general note, for any purpose. This property may be used directly, or as a super-property for more specific note types. A resource has no more than one value of skos:prefLabel per language tag, and no more than one value of skos:prefLabel without language tag. The range of skos:prefLabel is the class of RDF plain literals. skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties. preferred label The preferred lexical label for a resource, in a given language. scope note A note that helps to clarify the meaning and/or the use of a concept. has broader match skos:broadMatch is used to state a hierarchical mapping link between two conceptual resources in different concept schemes. Broader concepts are typically rendered as parents in a concept hierarchy (tree). has broader Relates a concept to a concept that is more general in meaning. By convention, skos:broader is only used to assert an immediate (i.e. direct) hierarchical link between two conceptual resources. has broader transitive skos:broaderTransitive is a transitive superproperty of skos:broader. By convention, skos:broaderTransitive is not used to make assertions. Rather, the properties can be used to draw inferences about the transitive closure of the hierarchical relation, which is useful e.g. when implementing a simple query expansion algorithm in a search application. has close match skos:closeMatch is used to link two concepts that are sufficiently similar that they can be used interchangeably in some information retrieval applications. In order to avoid the possibility of "compound errors" when combining mappings across more than two concept schemes, skos:closeMatch is not declared to be a transitive property. skos:exactMatch is disjoint with each of the properties skos:broadMatch and skos:relatedMatch. has exact match skos:exactMatch is used to link two concepts, indicating a high degree of confidence that the concepts can be used interchangeably across a wide range of information retrieval applications. skos:exactMatch is a transitive property, and is a sub-property of skos:closeMatch. has top concept Relates, by convention, a concept scheme to a concept which is topmost in the broader/narrower concept hierarchies for that scheme, providing an entry point to these hierarchies. is in scheme Relates a resource (for example a concept) to a concept scheme in which it is included. A concept may be a member of more than one concept scheme. These concept mapping relations mirror semantic relations, and the data model defined below is similar (with the exception of skos:exactMatch) to the data model defined for semantic relations. A distinct vocabulary is provided for concept mapping relations, to provide a convenient way to differentiate links within a concept scheme from links between concept schemes. However, this pattern of usage is not a formal requirement of the SKOS data model, and relies on informal definitions of best practice. is in mapping relation with Relates two concepts coming, by convention, from different schemes, and that have comparable meanings has member Relates a collection to one of its members. For any resource, every item in the list given as the value of the skos:memberList property is also a value of the skos:member property. has member list Relates an ordered collection to the RDF list containing its members. has narrower match skos:narrowMatch is used to state a hierarchical mapping link between two conceptual resources in different concept schemes. Narrower concepts are typically rendered as children in a concept hierarchy (tree). has narrower Relates a concept to a concept that is more specific in meaning. By convention, skos:broader is only used to assert an immediate (i.e. direct) hierarchical link between two conceptual resources. has narrower transitive skos:narrowerTransitive is a transitive superproperty of skos:narrower. By convention, skos:narrowerTransitive is not used to make assertions. Rather, the properties can be used to draw inferences about the transitive closure of the hierarchical relation, which is useful e.g. when implementing a simple query expansion algorithm in a search application. skos:related is disjoint with skos:broaderTransitive has related Relates a concept to a concept with which there is an associative semantic relationship. has related match skos:relatedMatch is used to state an associative mapping link between two conceptual resources in different concept schemes. is in semantic relation with Links a concept to a concept related by meaning. This property should not be used directly, but as a super-property for all properties denoting a relationship of meaning between concepts. is top concept in scheme Relates a concept to the concept scheme that it is a top level concept of. notation A notation, also known as classification code, is a string of characters such as "T58.5" or "303.4833" used to uniquely identify a concept within the scope of a given concept scheme. By convention, skos:notation is used with a typed literal in the object position of the triple. rdf:List skos:Collection Collection A meaningful collection of concepts. Labelled collections can be used where you would like a set of concepts to be displayed under a 'node label' in the hierarchy. skos:Concept Concept An idea or notion; a unit of thought. skos:ConceptScheme Concept Scheme A set of concepts, optionally including statements about semantic relationships between those concepts. Thesauri, classification schemes, subject heading lists, taxonomies, 'folksonomies', and other types of controlled vocabulary are all examples of concept schemes. Concept schemes are also embedded in glossaries and terminologies. A concept scheme may be defined to include concepts from different sources. skos:OrderedCollection Ordered Collection An ordered collection of concepts, where both the grouping and the ordering are meaningful. Ordered collections can be used where you would like a set of concepts to be displayed in a specific order, and optionally under a 'node label'. ANN AR ARCHIVE AS ASMT AU BDUS BI BMD CAD CAPTURE CD CF CFM COMP CP CR CS CT CTPROTOCOL DD DF DG DM DMS DOC DOCD DS DSS DX EC ECG EEG EMG EOG EPS ES F FA FC FID FILMD FP FS GM H HC HD IO IOL IVOCT IVUS KER KO LEN LOG LP LS M M3D MA MC MCD MEDIM MG MP MR MS NEARLINE NM OAM OCT OFFLINE ONLINE OP OPM OPR OPT OPTBSV OPTENF OPV OSS OT PA PLAN POS PR PRINT PT PX REG RESP RF RG RT RTDOSE RTIMAGE RTPLAN RTRECORD RTSTRUCT RWV SEG SM SMR SR SRF ST STAIN TEXTUREMAP TG U UNAVAILABLE US VA VF VIDD WSD XA XC 109001 109002 109003 109004 109005 109006 109007 109008 109009 109010 109011 109012 109013 109014 109015 109016 109017 109018 109019 109020 109021 109022 109023 109024 109025 109026 109027 109028 109029 109030 109031 109032 109033 109034 109035 109036 109037 109038 109039 109040 109041 109042 109043 109044 109045 109046 109047 109048 109049 109050 109051 109052 109053 109054 109055 109056 109057 109058 109059 109060 109061 109063 109070 109071 109072 109073 109080 109081 109082 109083 109091 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DCM 2025b_20250411 A device, process or method that produces annotations. Annotation An acquisition device, process or method that measures autorefraction. Autorefraction A device, process or method that stores images and other objects for a prolonged period of time. Archive true Retired An acquisition device, process or method that records images during angioscopy. Angioscopy A device, process or method that produces assessments of the content of other instances, e.g., for quality or suitability. Content Assessment Result An acquisition device, process or method that records audio. Audio An acquisition device, process or method that performs ultrasound bone densitometry. Ultrasound Bone Densitometry An acquisition device, process or method that performs biomagnetic imaging. Biomagnetic imaging An acquisition device, process or method that performs bone mineral densitometry by X-Ray, including dual-energy X-Ray absorptiometry (DXA) and morphometric X-Ray absorptiometry (MXA). Bone Mineral Densitometry An image processing device, process or method that performs computer assisted detection or diagnosis. Computer Assisted Detection/Diagnosis An acquisition device, process or method that performs image capture, includes video capture. Image Capture true Retired - Replaced by (US, DCM, "Ultrasound") An acquisition device, process or method that performs color flow Doppler. Color flow Doppler true Retired - Replaced by (RF, DCM, "Radiofluoroscopy") An acquisition device, process or method that performs cinefluorography. Cinefluorography An acquisition device, process or method that performs imaging using a confocal microscope. Confocal Microscopy A device, process or method that performs computation as a service; includes radiotherapy planning. Computation Server true Retired An acquisition device, process or method that records images during culposcopy. Culposcopy An acquisition device, process or method that performs computed radiography. Computed Radiography true Retired An acquisition device, process or method that records images during cystoscopy. Cystoscopy An acquisition device, process or method that performs computed tomography. Computed Tomography A device, process or method that produces CT device acquisition protocols. CT Protocol true Retired - Replaced by (US, DCM, "Ultrasound") An acquisition device, process or method that performs duplex Doppler. Duplex Doppler true Retired - Replaced by (RF, DCM, "Radiofluoroscopy") An acquisition device, process or method that performs digital fluoroscopy. Digital fluoroscopy An acquisition device, process or method that performs diaphanography. Diaphanography true Retired An acquisition device, process or method that performs digital microscopy. Digital microscopy An acquisition device, process or method that performs imaging of the surface of the skin using epiluminescence microscopy. Dermoscopy A device, process or method that produces documents. i.e., representations of documents as images, whether by scanning or other means. Document A device, process or method that digitizes hardcopy documents and imports them. Document Digitizer Equipment true Retired - Replaced by (XA, DCM, "X-Ray Angiography") An acquisition device, process or method that performs digital subtraction angiography. Digital Subtraction Angiography A department-based information system (for instance, Radiology or Laboratory) that provides functions related to the management of orders received from external systems or through the department system’s user interface. This definition matches that of the DSS/OF Actor in the IHE Scheduled Workflow (SWF) Profile. Department System Scheduler An acquisition device, process or method that performs digital radiography. Digital Radiography true Retired - Replaced by (US, DCM, "Ultrasound") An acquisition device, process or method that performs echocardiography. Echocardiography An acquisition device, process or method that performs electrocardiography. Electrocardiography An acquisition device, process or method that performs electroencephalography. Electroencephalography An acquisition device, process or method that performs electromyography. Electromyography An acquisition device, process or method that performs electrooculography. Electrooculography An acquisition device, process or method that performs cardiac electrophysiology. Cardiac Electrophysiology An acquisition device, process or method that records images during endoscopy. Endoscopy Female sex. Female true Retired - Replaced by (OP, DCM, "Ophthalmic photography") An acquisition device, process or method that performs fluorescein angiography. Fluorescein angiography Female sex changed to Male sex. Female changed to Male A device, process or method that identifies features or landmarks used to establish spatial correlation between objects or frames of reference. Spatial Fiducials A device, process or method that performs film digitization. Film Digitizer Female Pseudohermaphrodite. Female Pseudohermaphrodite true Retired An acquisition device, process or method that records images during fundoscopy. Fundoscopy An acquisition device, process or method that performs general microscopy. General Microscopy Hermaphrodite. Hermaphrodite A device, process or method that creates images to be printed as hard copy. Hard Copy An acquisition device, process or method that records hemodynamic waveforms. Hemodynamic An acquisition device, process or method that performs intra-oral radiography. Intra-oral Radiography A device, process or method that encodes calculations for an intraocular lens. Intraocular Lens Calculation An acquisition device, process or method that performs intravascular optical coherence tomography Intravascular Optical Coherence Tomography An acquisition device, process or method that performs intravascular ultrasound. Intravascular Ultrasound An acquisition device, process or method that performs keratometry. Keratometry A device, process or method that creates Key Object Selection objects. Key Object Selection An acquisition device, process or method that performs lensometry. Lensometry A device, process or method that performs procedure Logging; includes cath lab logging. Procedure Logging true Retired An acquisition device, process or method that records images during laparoscopy. Laparoscopy An acquisition device, process or method that performs laser surface scanning. Laser surface scan Male sex. Male A device, process or method that produces data (models) for use in 3D manufacturing. 3D Manufacturing Modeling System true Retired - Replaced by (MR, DCM, "Magnetic resonance") An acquisition device, process or method that performs magnetic resonance angiography. Magnetic resonance angiography Male sex changed to Female sex. Male changed to Female A device, process or method that creates DICOM interchange media. A CD creator that is managed by the Media Creation Management Service Class. Media Creation Device A device, process or method that retrieves and imports objects from Interchange Media. Portable Media Importer Equipment An acquisition device, process or method that performs mammography. Mammography Male Pseudohermaphrodite. Male Pseudohermaphrodite An acquisition device, process or method that performs magnetic resonance imaging. Magnetic Resonance true Retired - Replaced by (MR, DCM, "Magnetic resonance") An acquisition device, process or method that performs magnetic resonance spectroscopy. Magnetic resonance spectroscopy Instances need to be retrieved from relatively slow media such as optical disk or tape. Nearline An acquisition device, process or method that performs nuclear medicine imaging. Nuclear Medicine An acquisition device, process or method that measures the axial length of the eye. Ophthalmic Axial Measurements An acquisition device, process or method that uses an interferometric, non-invasive optical tomographic technique to image 2D slices and 3D volumes of tissue using visible and near visible frequencies. Optical Coherence Tomography Instances need to be retrieved by manual intervention. Offline Instances are immediately available. Online An acquisition device, process or method that performs ophthalmic photography. Ophthalmic photography An acquisition device, process or method that measures corneal topography, corneal or retinal thickness, and other similar parameters that are typically displayed as maps. Ophthalmic Mapping An acquisition device, process or method that measures the refractive characteristics of the eye. Ophthalmic Refraction An acquisition device, process or method that performs tomography of the eye that is based on light and optical principles. Tomography based on other principles, such as ultrasound, is excluded. Ophthalmic Tomography An acquisition device, process or method that performs B-scan volume analysis of tomography images of the eye based on light and optical principles. Tomography based on other principles, such as ultrasound, is excluded. Ophthalmic Tomography B-scan Volume Analysis An acquisition device, process or method that creates en face tomography images of the eye based on light and optical principles. Tomography based on other principles, such as ultrasound, is excluded. Ophthalmic Tomography En Face An acquisition device, process or method that measures visual fields and perform visual perimetry. Ophthalmic Visual Field An acquisition device, process or method that performs optical surface scanning. Optical Surface Scanner Other Modality device. Other Modality An acquisition device, process or method that performs imaging by means of tissue excitation through the absorption of short light pulses and detection of the resultant acoustic emission. Photoacoustic A device, process or method that produces treatment plans, e.g., delivery instructions for RT. Plan A device or sensor measuring the orientation of the patient’s body. Position Sensor A device, process or method that creates Presentation State objects. Presentation State Hard Copy Print Server; includes printers with embedded DICOM print server. Hard Copy Print Server An acquisition device, process or method that performs positron emission tomography (PET). Positron emission tomography An acquisition device, process or method that performs panoramic X-Rays. Panoramic X-Ray An image processing device, process or method that creates Registration objects. Registration A device, process or method that produces waveforms of electrical signals from the patient’s respiratory system. Respiratory An acquisition device, process or method that performs radiofluoroscopy. Radiofluoroscopy An acquisition device, process or method that performs radiographic imaging (conventional film/screen). Radiographic imaging A device, process or method that delivers radiation therapy; includes linear accelerator, proton therapy. Radiation Therapy Device A device, process or method that records radiotherapy dose. RT Dose An acquisition device, process or method that performs radiotherapy imaging; includes portal imaging. RT Image A device, process or method that produces radiotherapy plans. RT Plan A device, process or method that records radiotherapy treatment records. RT Treatment Record A device, process or method that produces Radiotherapy Structure Sets. RT Structure Set A device, process or method that produces mappings between image pixel values and some real-world values. Real World Value Map An image processing device, process or method that performs segmentation. Segmentation An acquisition device, process or method that performs slide microscopy. Slide Microscopy A device, process or method that records relationships between stereometric image pairs. Stereometric Relationship A device, process or method that creates Structured Report documents. Structured Report Document An acquisition device, process or method that records subjective refraction. Subjective Refraction true Retired - Replaced by (NM, DCM, "Nuclear Medicine") An acquisition device, process or method that performs single-photon emission computed tomography (SPECT). Single-photon emission computed tomography A device, process or method that applies, in an automated manner, a stain, or reagent, to microscopy slides in preparation for imaging. Automated Slide Stainer A device, process or method that produces texture maps. For use in 3D manufacturing. Texture Map An acquisition device, process or method that performs thermography. Thermography Unknown Sex. Unknown Sex Instances cannot be retrieved. Unavailable An acquisition device, process or method that performs ultrasound. Ultrasound An acquisition device, process or method that measures visual acuity. Visual Acuity true Retired - Replaced by (RF, DCM, "Radiofluoroscopy") An acquisition device, process or method that measures videofluorography. Videofluorography A device, process or method that digitizes video tape and imports it. Video Tape Digitizer Equipment A networked computer equipped with a display and software for performing specific types of work, generally intended to be operated by a single user. Workstation An acquisition device, process or method that performs X-Ray angiography. X-Ray Angiography An acquisition device, process or method that performs photography with an external camera. External-camera Photography A signal transmitted for the purpose of interchange of the current time, not specific to any source or methodology. Digital timecode (NOS) A signal that is generated for each detection of a heart beat. ECG-based gating signal, processed A signal transmitted by the Inter-Range Instrumentation Group for the purpose of synchronizing time clocks. IRIG-B timecode A signal that indicates that X-Ray source has been activated for fluoroscopy use. X-Ray Fluoroscopy On Signal A signal that indicated that the X-Ray source has been activated for image recording. X-Ray On Trigger An electrical signal derived from two electrodes. Differential signal An electrophysiological recording from the HIS nerve bundle. His bundle electrogram An electrical signal from one electrode relative to an indifferent potential. Monopole signal The voltage stimulus during cardiac pacing. Pacing (electrical) stimulus, voltage The power injected during RF ablation procedure. Radio frequency ablation, power Electrophysiological signals acquired using a multi-splined catheter each equipped with multiple electrodes. Voltage measurement by basket catheter Electrophysiological signals acquired using a steerable catheter. Voltage measurement by mapping catheter A voltage measurement not otherwise specified. Voltage measurement A signal point that is 35% of the peak thermal cardiac output signal. 35% of thermal/dye dilution CO A signal point that is 70% of the peak thermal cardiac output signal. 70% of thermal/dye dilution CO The peak pressure of each heart beat in the atrium caused by the atrial contraction. A wave peak pressure The average of several A wave pressure measurements. A wave pressure, average An identified cardiac beat used in the determination of a measurement. Beat detected (accepted) An identified cardiac beat not used in the determination of a measurement. Beat detected (rejected) true Retired - Replaced by (314453003, SCT, "Average diastolic blood pressure") The average of several diastolic pressure measurements Diastolic pressure, average true Retired - Replaced by (314451001, SCT, "Minimum diastolic blood pressure") The lowest pressure value excluding any undershoot artifact. Diastolic pressure nadir true Retired - Replaced by (416190007, SCT, "End diastole") The moment at the end of the diastolic phase of the cardiac cycle. End diastole The moment at the end of respiratory expiration. End of expiration The moment at the end of respiratory inspiration. End of inspiration The maximum positive rate of change of pressure. Max dp/dt The maximum negative rate of change of pressure. Max neg dp/dt true Retired - Replaced by (6797001, SCT, "Mean blood pressure") The average blood pressure value, generally over 2 or more seconds Mean blood pressure The peak change in blood temperature during a thermal cardiac output measurement. Peak of thermal cardiac output bolus The moment respiratory expiration begins. Start of expiration The moment of respiratory inspiration begins. Start of inspiration The first discernible blood temperature change following the injectate during a thermal cardiac output measurement. Start of thermal CO true Retired - Replaced by (314440001, SCT, "Average systolic blood pressure") The average of several systolic blood pressure measurements. Systolic pressure, average true Retired - Replaced by (314439003, SCT, "Maximum systolic blood pressure") The highest systolic blood pressure value excluding any overshoot artifact Systolic peak pressure The peak pressure of each heart beat in the atrium caused by the filling of the atrium. V wave peak pressure The average of several V wave pressure measurements. V wave pressure, average The moment at which a heart valve closes. Valve close The moment at which a heart valve opens. Valve open The moment when RF ablation current is turned off. Ablation off The moment when RF ablation current is turned on. Ablation on The moment in the cardiac cycle when the HIS bundle nerves depolarize. HIS bundle wave The surface electrocardiogram of the atrial contraction. P wave The first negative deflection of the electrocardiogram cause by ventricular depolarization. Q wave The first positive deflection the electrocardiogram cause by ventricular depolarization. R wave The first negative deflection after the R wave. S wave The beginning of the atrial contraction. Start of atrial contraction The beginning of the second atrial contraction of two consecutive beats. Start of atrial contraction (subsequent) The stimulation interval during cardiac stimulation first used in a pacing train. Stimulation at rate 1 interval The stimulation interval different from the first stimulation interval used in a pacing train. Stimulation at rate 2 interval A stimulation interval different from and subsequent to the second interval in a pacing train. Stimulation at rate 3 interval Describes a stimulation interval different from and subsequent to the third interval in a pacing train. Stimulation at rate 4 interval The electrocardiogram deflection caused by ventricular repolarization. T wave The peak pressure of each heart beat monitored in the atrium caused by the filling of the atrium. V wave The second V wave measurement of two consecutive beats. V wave of next beat A description of the physiological condition of the patient. Patient State The exercise level during a progressive cardiac stress test. Protocol Stage A series of physiological challenges designed to progressively increase the work of the heart. Stress Protocol true Retired - Replaced by (129085009, SCT, "Catheterization Procedure Phase") A subpart of a cardiac catheterization procedure Catheterization Procedure Phase The subpart of a cardiac catheterization procedure in which a radio-opaque contrast medium is injected into the patient. Contrast Phase Physical changes administered to a patient in order to elicit an physiological response. Physiological challenges Enumeration of a subpart of a catheterization procedure. Procedure Step Number A subpart of en electrophysiological procedure. EP Procedure Phase A means of defining a series of cardiac stimulation pulses. Pulse train definition true Retired - Replaced by (416430001, SCT, "End systole") End of systole Time for a median particle to travel from point of injection to point of detection. Indicator mean transit time The time constant of isovolumic pressure fall. Tau Maximum velocity of myocardial contractility. V max myocardial Total time for the acquisition is shorter than cardiac cycle, no gating is applied. Real time acquisition Certain thresholds have been set for a gating window that defines the acceptance of measurement data during the acquisition. Prospective gating Certain thresholds have been set for a gating window that defines the acceptance of measurement data after the acquisition. Retrospective gating There is a constant RR interval, which makes thresholding not required; see Cardiac Synchronization Technique (0018,9037). Pacemaker. Paced true Retired - Replaced by (432655005, SCT, "Cardiac stress state"). Imaging after injection of tracer during increased cardiac workload or increased myocardial blood flow, achieved by either exercise or pharmacologic means. Cardiac Stress State Imaging after injection of additional tracer under resting conditions. Reinjection State Imaging after allowing a moderate amount of time for tracer to move from its initial sites of uptake.Example: For Thallium imaging this would correspond to imaging 2-6 hours after injection. Redistribution State Imaging after allowing an extended amount of time for tracer to move from its initial sites of uptake.Example: For Thallium imaging this would correspond to imaging more than 6 hours after injection. Delayed Redistribution State true Retired - Replaced by (434161005, SCT, "Peak stress state") Peak Cardiac stress state Peak stress state true Retired - Replaced by (432554001, SCT, "Cardiac stress Recovery state") Recovery from cardiac stress Recovery state Equipment that created artificial data. Synthesizing Equipment Equipment that originally acquired the data stored within composite instances. A CT, MR or Ultrasound modality. Acquisition Equipment Equipment that has processed composite instances to create new composite instances. A workstation or software component that performs 3D construction, segmentation or applies an AI model. Processing Equipment Equipment that has modified existing composite instances (without creating new composite instances). A QA Station or Archive. Modifying Equipment Equipment that has modified an existing composite instance to remove patient identifying information. De-identifying Equipment Equipment that has processed composite instances to create new composite instances by extracting selected frames from the original instance. Frame Extracting Equipment Equipment that has processed composite instances to create new composite instances by converting classic single frame images to enhanced multi-frame image, or vice versa and updating other instances to maintain referential integrity. Enhanced Multi-frame Conversion Equipment The sound of a human's speech, recorded during a procedure. May include the patient's voice, or the voice of staff present in the room, or an operator's voice (whether for the purpose of recording a narrative accompanying a procedure or not). Voice The voice of a device operator, recorded during a procedure. Operator's narrative The ambient sound recorded during a procedure, which may or may not include voice and other types of sound. Ambient room environment The Doppler waveform recorded as an audible signal. Doppler audio The sound of the human heart beating. Such as might be recorded from an electronic stethoscope. Phonocardiogram Any sound made by the human body. May include the sound of the heart, but also sound from other organs, such as bowel sounds or bruits from vessels, or sounds of respiration. Not intended to include voice. Physiological audio signal A digitized signal from the patient arterial system collected through pulse oximetry or other means. Arterial Pulse Waveform A digitized signal from the patient respiratory system representing respiration. Respiration Waveform The occasion on which a procedure was performed on admission to a specialist unit. Intensive care. On admission to unit The occasion on which a procedure was performed on discharge from hospital as an in-patient. On discharge The occasion on which a procedure was performed on discharge from a specialist unit. Intensive care. On discharge from unit The occasion on which a procedure was performed immediately prior to non-surgical intervention. E.g, percutaneous angioplasty, biopsy. Pre-intervention The occasion on which a procedure was performed immediately after to non-surgical intervention. E.g, percutaneous angioplasty, biopsy. Post-intervention The occasion on which a procedure was performed at the most recent outpatient visit. At last appointment The active or passive joint positioning during acquisition. Joint position method A physical force applied during acquisition. Physical force Prior to voiding urine from the bladder. Prior to voiding Post voiding urine from the bladder. Post voiding Neutral musculoskeletal position. Neutral musculoskeletal position During voiding urine from the bladder. During voiding America Kennel Club. America Kennel Club America's Pet Registry Inc. America's Pet Registry Inc. American Canine Association. American Canine Association American Purebred Registry. American Purebred Registry American Rare Breed Association. American Rare Breed Association Animal Registry Unlimited. Animal Registry Unlimited Animal Research Foundation. Animal Research Foundation Canadian Border Collie Association. Canadian Border Collie Association Canadian Kennel Club. Canadian Kennel Club Canadian Livestock Records Association. Canadian Livestock Records Association Canine Federation of Canada. Canine Federation of Canada Continental Kennel Club. Continental Kennel Club Dog Registry of America. Dog Registry of America Federation of International Canines. Federation of International Canines International Progressive Dog Breeders' Alliance. International Progressive Dog Breeders' Alliance National Kennel Club. National Kennel Club North American Purebred Dog Registry. North American Purebred Dog Registry United All Breed Registry. United All Breed Registry United Kennel Club. United Kennel Club Universal Kennel Club International. Universal Kennel Club International Working Canine Association of Canada. Working Canine Association of Canada World Kennel Club. World Kennel Club World Wide Kennel Club. World Wide Kennel Club Evaluation of overall image quality as described in section 7.3.2 of . Overall image quality evaluation Visual verification of sufficient grayscale resolution based on 8 and 10-bit markers as described in section 7.3.3 of . Grayscale resolution evaluation Visual evaluation of luminance response using the TG18-CT test pattern as described in section 7.3.4 of . Luminance response evaluation Visual detection of luminance non-uniformities as described in section 7.3.5 of . Luminance uniformity evaluation Visual verification of color uniformity as described in section 7.3.6 of . Chromaticity evaluation Visual detection of defective pixels on dark (TG18-UN80) and bright (TG18-UN10) images as described in section 7.3.7 of . Pixel faults evaluation Visual evaluation of veiling glare by looking at low contrast objects on 2 test patterns as described in section 7.3.8 of . Veiling glare evaluation Visual evaluation of geometry, phase/clock correction and clipping as described in section 7.3.9 of . Geometrical image evaluation Visual evaluation of viewing angle as described in section 7.3.10 of . Angular viewing evaluation Visual evaluation of the appearance of clinical images as described in section 7.3.11 of . Clinical evaluation AAPM TG18-QC Pattern used for evaluation of resolution, luminance, distortion, artifacts.See . TG18-QC Pattern AAPM TG18-BR Pattern used for the evaluation of the display of low-contrast, fine-detail image structuresSee . TG18-BR Pattern AAPM TG18-PQC Pattern used for evaluation of resolution, luminance, contrast transfer for prints.See . TG18-PQC Pattern AAPM TG18-CT Pattern used for evaluation of luminance response.See . TG18-CT Pattern The 1st image in the AAPM TG18-LN8 set used for DICOM grayscale calibration.See . TG18-LN8-01 Pattern The 2nd image in the AAPM TG18-LN8 set used for DICOM grayscale calibration.See . TG18-LN8-02 Pattern The 3rd image in the AAPM TG18-LN8 set used for DICOM grayscale calibration.See . TG18-LN8-03 Pattern The 4th image in the AAPM TG18-LN8 set used for DICOM grayscale calibration.See . TG18-LN8-04 Pattern The 5th image in the AAPM TG18-LN8 set used for DICOM grayscale calibration.See . TG18-LN8-05 Pattern The 6th image in the AAPM TG18-LN8 set used for DICOM grayscale calibration.See . TG18-LN8-06 Pattern The 7th image in the AAPM TG18-LN8 set used for DICOM grayscale calibration.See . TG18-LN8-07 Pattern The 8th image in the AAPM TG18-LN8 set used for DICOM grayscale calibration.See . TG18-LN8-08 Pattern The 9th image in the AAPM TG18-LN8 set used for DICOM grayscale calibration.See . TG18-LN8-09 Pattern The 10th image in the AAPM TG18-LN8 set used for DICOM grayscale calibration series.See . TG18-LN8-10 Pattern The 11th image in the AAPM TG18-LN8 set used for DICOM grayscale calibration.See . TG18-LN8-11 Pattern The 12th image in the AAPM TG18-LN8 set used for DICOM grayscale calibration.See . TG18-LN8-12 Pattern The 13th image in the AAPM TG18-LN8 set used for DICOM grayscale calibration.See . TG18-LN8-13 Pattern The 14th image in the AAPM TG18-LN8 set used for DICOM grayscale calibration.See . TG18-LN8-14 Pattern The 15th image in the AAPM TG18-LN8 set used for DICOM grayscale calibration.See . TG18-LN8-15 Pattern The 16th image in the AAPM TG18-LN8 set used for DICOM grayscale calibration.See . TG18-LN8-16 Pattern The 17th image in the AAPM TG18-LN8 set used for DICOM grayscale calibration.See . TG18-LN8-17 Pattern The 18th image in the AAPM TG18-LN8- set used for DICOM grayscale calibration.See . TG18-LN8-18 Pattern The 1st image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-01 Pattern The 2 nd image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-02 Pattern The 3rd image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-03 Pattern The 4th image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-04 Pattern The 5th image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-05 Pattern The 6th image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-06 Pattern The 7th image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-07 Pattern The 8th image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-08 Pattern The 9th image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-09 Pattern The 10th image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-10 Pattern The 11th image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-11 Pattern The 12th image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-12 Pattern The 13th image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-13 Pattern The 14th image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-14 Pattern The 15th image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-15 Pattern The 16th image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-16 Pattern The 17th image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-17 Pattern The 18th image in the AAPM TG18-LN12 set used for DICOM grayscale calibration.See . TG18-LN12-18 Pattern The AAPM TG18-UN10 Pattern used for evaluation of luminance and color uniformity, and angular response.See . TG18-UN10 Pattern The AAPM TG18-UN80 Pattern used for evaluation of luminance and color uniformity, and angular response.See . TG18-UN80 Pattern The AAPM TG18-UNL10 Pattern is the AAPM TG-18 UN10 Pattern with added defining lines.See . TG18-UNL10 Pattern The AAPM TG18-UNL80 Pattern is the AAPM TG-18 UN80 Pattern with added defining lines.See . TG18-UNL80 Pattern The AAPM TG18-AD Pattern used for visual evaluation of the reflection of ambient light from the display.See . TG18-AD Pattern The AAPM TG18-MP Pattern used for evaluation of Luminance response (bit-depth resolution).See . TG18-MP Pattern The AAPM TG18-RH10 Pattern used for LSF-line spectra function-(1k and 2k) evaluation by 5 horizontal lines at 10% luminance level.See . TG18-RH10 Pattern The AAPM TG18-RH50 Pattern used for LSF-line spectra function-(1k and 2k) evaluation by 5 horizontal lines at 50% luminance level.See . TG18-RH50 Pattern The AAPM TG18-RH89 Pattern used for LSF-line spectra function-(1k and 2k) evaluation by 5 horizontal lines at 89% luminance level.See . TG18-RH89 Pattern The AAPM TG18-RV10 Pattern used for LSF-line spectra function-(1k and 2k) evaluation by 5 vertical lines at 10% luminance level.See . TG18-RV10 Pattern The AAPM TG18-RV50 Pattern used for LSF-line spectra function-(1k and 2k) evaluation by 5 vertical lines at 50% luminance level.See . TG18-RV50 Pattern The AAPM TG18-RV89 Pattern used for LSF-line spectra function-(1k and 2k) evaluation by 5 vertical lines at 89% luminance level.See . TG18-RV89 Pattern The AAPM TG18-PX Pattern used for the assessment of display resolution.See . TG18-PX Pattern The AAPM TG18-CX Pattern used to assess display resolution and resolution uniformity.See . TG18-CX Pattern The AAPM TG18-LPH10 Pattern used to assess display resolution. This pattern has horizontal bars consisting of alternating single-pixel-wide lines across the faceplate of display. The lines have a 12% positive contrast against 10% background level of the maximum pixel value.See . TG18-LPH10 Pattern The AAPM TG18-LPH50 Pattern used to assess display resolution. This pattern has horizontal bars consisting of alternating single-pixel-wide lines across the faceplate of display. The lines have a 50% positive contrast against 10% background level of the maximum pixel value.See . TG18-LPH50 Pattern The AAPM TG18-LPH89 Pattern used to assess display resolution. This pattern has horizontal bars consisting of alternating single-pixel-wide lines across the faceplate of display. The lines have a 12% positive contrast against 89% background level of the maximum pixel value.See . TG18-LPH89 Pattern The AAPM TG18-LPV10 Pattern used to assess display resolution. This pattern has vertical bars consisting of alternating single-pixel-wide lines across the faceplate of display. The lines have a 12% positive contrast against 10% background level of the maximum pixel value.See . TG18-LPV10 Pattern The AAPM TG18-LPV50 Pattern used to assess display resolution. This pattern has vertical bars consisting of alternating single-pixel-wide lines across the faceplate of display. The lines have a 12% positive contrast against 50% background level of the maximum pixel value.See . TG18-LPV50 Pattern The AAPM TG18-LPV89 Pattern used to assess display resolution. This pattern has vertical bars consisting of alternating single-pixel-wide lines across the faceplate of display. The lines have a 12% positive contrast against 89% background level of the maximum pixel value.See . TG18-LPV89 Pattern The AAPM TG18-AFC Pattern used to assess display noise.See TG18-AFC Pattern The AAPM TG18-NS10 Pattern is AAPM TG18-RV10/RH10 with only difference being the absence of the single line at the center of the measurement area.See . TG18-NS10 Pattern The AAPM TG18-NS50 Pattern is AAPM TG18-RV50/RH50 with only difference being the absence of the single line at the center of the measurement area.See . TG18-NS50 Pattern The AAPM TG18-NS89 Pattern is AAPM TG18-RV89/RH89 with only difference being the absence of the single line at the center of the measurement area.See . TG18-NS89 Pattern The TG18-GV Pattern used to assess display veiling.See . TG18-GV Pattern The TG18-GVN Pattern used to assess display veiling. This pattern is identical to AAPM TG18-GV Pattern except that the large-diameter white circle is replaced with a black circle, creating a completely black pattern except for the presence of low-contrast targets.See . TG18-GVN Pattern The TG18-GQ Pattern used for quantitative assessment of veiling glare. This pattern is identical to TG18-GV except that is lacks the central low-contrast objects.See . TG18-GQ Pattern TG18-GQN Pattern used for the quantitative assessment of veiling glare. This pattern is identical to AAPM TG18-GQ Pattern except that the large-diameter white circle is replaced with a black circle, creating a completely black pattern except for the presence of low-contrast targets.See . TG18-GQN Pattern The TG18-GQB Pattern used for the quantitative assessment of veiling glare. This pattern is identical to AAPM TG18-GQ Pattern except eliminating the central black circle.See . TG18-GQB Pattern The TG18-GA03 Pattern used for quantitative assessment of veiling glare. This pattern is identical to TG18-GQ except that the radius of the central black circle is varied as r = 3.See . TG18-GA03 Pattern The TG18-GA05 Pattern This pattern is identical to TG18-GQ except that the radius of the central black circle is varied as r = 5.See . TG18-GA05 Pattern The TG18-GA08 Pattern used for quantitative assessment of veiling glare. This pattern is identical to TG18-GQ except that the radius of the central black circle is varied as r = 8.See . TG18-GA08 Pattern The TG18-GA10 Pattern used for quantitative assessment of veiling glare. This pattern is identical to TG18-GQ except that the radius of the central black circle is varied as r = 10.See . TG18-GA10 Pattern The TG18-GA15 Pattern used for quantitative assessment of veiling glare. This pattern is identical to TG18-GQ except that the radius of the central black circle is varied as r = 15. TG18-GA15 Pattern The TG18-GA20 Pattern used for quantitative assessment of veiling glare. This pattern is identical to TG18-GQ except that the radius of the central black circle is varied as r = 20.See . TG18-GA20 Pattern The TG18-GA25 Pattern used for quantitative assessment of veiling glare. This pattern is identical to TG18-GQ except that the radius of the central black circle is varied as r = 25.See . TG18-GA25 Pattern The TG18-GA30 Pattern used for quantitative assessment of veiling glare. This pattern is identical to TG18-GQ except that the radius of the central black circle is varied as r = 30.See . TG18-GA30 Pattern The AAPM TG18-CH Image is a reference anatomical PA chest image.See . TG18-CH Image The AAPM TG18-KN Image is a reference anatomical knee image.See . TG18-KN Image The AAPM TG18-MM1 Image is a reference anatomical mammogram image.See . TG18-MM1 Image The AAPM TG18-MM2 Image is a reference anatomical mammogram image.See . TG18-MM2 Image The IEC OIQ Pattern is used as an alternative to the TG18-QC Pattern.See . OIQ Pattern The IEC ANG Pattern used for angular viewing evaluation.See . ANG Pattern The IEC GD Pattern used for geometrical image evaluation.See . GD Pattern The IEC BN01 Pattern is used as an alternative to the TG18-LN-01 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN01 Pattern The IEC BN02 Pattern is used as an alternative to the TG18-LN-02 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN02 Pattern The IEC BN03 Pattern is used as an alternative to the TG18-LN-03 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN03 Pattern The IEC BN04 Pattern is used as an alternative to the TG18-LN-04 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN04 Pattern The IEC BN05 Pattern is used as an alternative to the TG18-LN-05 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN05 Pattern The IEC BN06 Pattern is used as an alternative to the TG18-LN-06 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN06 Pattern The IEC BN07 Pattern is used as an alternative to the TG18-LN-07 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN07 Pattern The IEC BN08 Pattern is used as an alternative to the TG18-LN-08 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN08 Pattern The IEC BN09 Pattern is used as an alternative to the TG18-LN-09 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN09 Pattern The IEC BN10 Pattern is used as an alternative to the TG18-LN-10 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN10 Pattern The IEC BN11 Pattern is used as an alternative to the TG18-LN-11 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN11 Pattern The IEC BN12 Pattern is used as an alternative to the TG18-LN-12 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN12 Pattern The IEC BN13 Pattern is used as an alternative to the TG18-LN-13 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN13 Pattern The IEC BN14 Pattern is used as an alternative to the TG18-LN-14 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN14 Pattern The IEC BN15 Pattern is used as an alternative to the TG18-LN-15 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN15 Pattern The IEC BN16 Pattern is used as an alternative to the TG18-LN-16 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN16 Pattern The IEC BN17 Pattern is used as an alternative to the TG18-LN-17 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN17 Pattern The IEC BN18 Pattern is used as an alternative to the TG18-LN-18 Pattern, to avoid the use of a cone or baffle with LCDs.See . BN18 Pattern Test image "Bild 2" for the gray-scale reproduction of imaging devices.See . DIN Grayscale Pattern Test image "Bild 3" for the geometrical imaging properties of imaging devices.See . DIN Geometry Pattern Test image "Bild 5" for displaying the spatial and contrast resolution as well as the line structure of imaging devices.See . DIN Resolution Pattern An alternative to AAPM TG18-UN80, specified at 100% of maximum pixel value. White Pattern A standard display test pattern.See .A pattern is available at . SMPTE Pattern A Display Device that displays images on a Cathode Ray Tube. CRT Display A Display Device that displays images on a Liquid Crystal Display. Liquid Crystal Display A Display Device that displays images on a Plasma Display. Plasma Display A Display Device that displays images on an Organic Light Emitting Diode based display. OLED A Display Device that projects images on a surface from behind using a Digital Light Processing Projector. DLP Rear Projection System A Display Device that projects images on a surface from in front using a Digital Light Processing Projector. DLP Front Projection System A Display Device that projects images on a surface from behind using a Cathode Ray Tube. CRT Rear Projection System A Display Device that projects images on a surface from in front using a Cathode Ray Tube. CRT Front Projection System A Display Device that projects images on a surface from an unspecified direction using an unspecified means. Other Projection System Image processing work item. Image Processing Quality control work item. Quality Control Computer aided diagnosis work item. Computer Aided Diagnosis Computer aided detection work item. Computer Aided Detection The work item task is to prepare a report that contains the interpretation of an imaging study. Interpretation Transcription work item. Transcription Report verification work item. Report Verification Print work item. Print There will be no more work items scheduled. No subsequent Workitems Film type of output. Film Dictation type of output. Dictation Transcription type of output. Transcription The procedure to read DICOM instances from DICOM interchange media, coerce identifying Attributes into the local namespace if necessary, and make the instances available. Media Import Digitization of Sheet Film. Sheet Film Digitized Digitization of Cine Film. Cine Film Digitized Digitization of Video Tape. Video Tape Digitized Digitization of pages of a paper document (Units may be specified as Pages, Documents). Paper Digitized Importation of CD. CD Imported Importation of DVD. DVD Imported Importation of MOD. MOD Imported Importation of DICOM Studies. Studies Imported Importation of DICOM Composite Instances. Instances Imported A device that connects using the USB hard drive interface. These may be USB-Sticks, portable hard drives, and other technologies. USB Disk Emulation Email and email attachments used as a media for data transport. Email CD-R, CD-ROM, and CD-RW media used for data transport. CD DVD, DVD-RAM, and other DVD formatted media used for data transport. DVD Media that comply with the Compact Flash standard. Compact Flash Media that comply with the Multi-media Card standard. Multi-media Card Media that comply with the Secure Digital Card standard. Secure Digital Card URI Identifier for network or other resource, see RFC3968. URI Any paper or similar document. Paper Document Audit event: Application Activity has taken place. Application Activity Audit event: Audit Log has been used. Audit Log Used Audit event: Storage of DICOM Instances has begun. Begin Transferring DICOM Instances Audit event: DICOM Instances have been created, read, updated, or deleted -audit event. DICOM Instances Accessed Audit event: Storage of DICOM Instances has been completed. DICOM Instances Transferred Audit event: Entire Study has been deleted. DICOM Study Deleted Audit event: Data has been exported out of the system. Export Audit event: Data has been imported into the system. Import Audit event: System has joined or left network. Network Entry Audit event: Order has been created, read, updated or deleted. Order Record Audit event: Patient Record has been created, read, updated, or deleted. Patient Record Audit event: Procedure Record has been created, read, updated, or deleted. Procedure Record Audit event: Query has been made. Query Audit event: Security Alert has been raised. Security Alert Audit event: User Authentication has been attempted. User Authentication Application Entity Title of a device. Station AE Title Audit event: Application Entity has started. Application Start Audit event: Application Entity has stopped. Application Stop Audit event: User login has been attempted. Login Audit event: User logout has been attempted. Logout Audit event: Node has been attached. Attach Audit event: Node has been detached. Detach Audit event: Node Authentication has been attempted. Node Authentication Audit event: Emergency Override has started. Emergency Override Started Audit event: Network configuration has been changed. Network Configuration Audit event: Security configuration has been changed. Security Configuration Audit event: Hardware configuration has been changed. Hardware Configuration Audit event: Software configuration has been changed. Software Configuration Audit event: A use of a restricted function has been attempted. Use of Restricted Function Audit event: Audit recording has been stopped. Audit Recording Stopped Audit event: Audit recording has been started. Audit Recording Started Audit event: Security attributes of an object have been changed. Object Security Attributes Changed Audit event: Security roles have been changed. Security Roles Changed Audit event: Security attributes of a user have been changed. User security Attributes Changed Audit event: Emergency Override has Stopped. Emergency Override Stopped Audit event: Remote Service Operation has Begun. Remote Service Operation Started Audit event: Remote Service Operation has Stopped. Remote Service Operation Stopped Audit event: Local Service Operation has Begun. Local Service Operation Started Audit event: Local Service Operation Stopped. Local Service Operation Stopped Audit event: An authentication decision has been made. Authentication Decision Audit event: An authorization decision has been made. Authorization Decision Audit event: A persistent session has started. Session start Audit event: A persistent session has stopped. Session stop Audit event: An access control decision has been made. Access Control Decision Audit participant role ID of software application. Application Audit participant role ID of software application launcher, i.e., the entity that started or stopped an application. Application Launcher Audit participant role ID of the receiver of data. Destination Role ID Audit participant role ID of the sender of data. Source Role ID Audit participant role ID of media receiving data during an export. Destination Media Audit participant role ID of media providing data during an import. Source Media ParticipantObjectID type: Study Instance UID. Study Instance UID ParticipantObjectID type: SOP Class UID. SOP Class UID ID of a node that is a participant object of an audit message. Node ID System, organization, agency, or department that has assigned an instance identifier (such as placer or filler number, patient or provider identifier, etc.). Issuer of Identifier Procedure order canceled by requesting physician or other authorized physician. Doctor canceled procedure Equipment failure prevented completion of procedure. Equipment failure Procedure discontinued due to incorrect procedure being ordered. Incorrect procedure ordered Procedure discontinued due to patient allergy to media/contrast (reported or reaction). Patient allergic to media/contrast Procedure discontinued due to death of Patient. Patient died Procedure discontinued due to patient refusal to continue procedure. Patient refused to continue procedure Procedure discontinued due to patient being taken for treatment or surgery. Patient taken for treatment or surgery Patient did not arrive for procedure. Patient did not arrive Procedure discontinued due to patient pregnancy (reported or determined). Patient pregnant Procedure discontinued to restart with new procedure code for correct charging. Change of procedure for correct charging Procedure discontinued due to duplicate orders received for same procedure. Duplicate order Procedure order canceled by nursing unit. Nursing unit cancel Procedure discontinued due to incorrect side (laterality) being ordered. Incorrect side ordered Procedure discontinued for unspecified reason. Discontinued for unspecified reason Procedure discontinued due to incorrect patient or procedure step selected from modality worklist. Incorrect worklist entry selected Patient condition prevented continuation of procedure. Patient condition prevented continuing Procedure step is discontinued to change to other equipment or modality. Equipment change A movement of the patient preventing continuation of procedure or affecting result quality. Patient Movement An error of the operator preventing continuation of procedure or affecting result quality. Operator Error The brachytherapy channel is obstructed and the treatment in this channel cannot proceed. Channel Obstruction One or more of the objects is malformed. Objects incorrectly formatted Receiving System is unable to accept the object type. Object Types not supported One or more objects associated with the object set is missing. Object Set incomplete The contents of the Media could not be accessed properly. Media Failure Procedure discontinued due to necessary equipment, staff or other resource becoming (temporarily) unavailable to the procedure. Resource pre-empted Procedure discontinued due to necessary equipment, staff or other resource being inadequate to complete the procedure. Resource inadequate A new Procedure Step has been scheduled to replace the Discontinued Procedure Step. Discontinued Procedure Step rescheduled It is recommended that a new Procedure Step be scheduled to replace the Discontinued Procedure Step. Discontinued Procedure Step rescheduling recommended The resource to which a workitem has been assigned has rejected the assignment. Workitem assignment rejected by assigned resource Reporting not possible due to lack of quality of the images provided. Insufficient quality for interpretation The nature of the clinical problem means that reporting of the study requires a subject matter expert. Interpretation requires specialist expertise The expiration date/time of the workitem has been exceeded. Workitem expired Ventral structures of the diencephalon that cannot readily be distinguished on MR imaging, including the hypothalamus, mammillary body, subthalamic nuclei, substantia nigra, red nucleus, lateral geniculate nucleus, medial geniculate nucleus, zona incerta, cerebral peduncle, lenticular fasciculus, medial lemniscus, and optic tract.See and . Ventral Diencephalon Area(s) of reduced intensity on T1 weighted images relative to the surrounding white matter.These may be indicative of age-related or neurodegenerative white matter lesions, and may be co-located with areas of white matter T2 hyperintensity, but the concept is specifically confined to the MR appearance on T1 weighted images. White Matter T1 Hypointensity Area(s) of increased intensity on T2 weighted images relative to the surrounding white matter.These may be indicative of age-related or neurodegenerative white matter lesions, and may be co-located with areas of white matter T1 hypointensity, but the concept is specifically confined to the MR appearance on T2 weighted images. White Matter T2 Hyperintensity The dorsal component of the SLF originating from the medial and dorsal parietal cortex and ending in the dorsal and medial part of the frontal lobe.See Makris N, et al. "Segmentation of Subcomponents within the Superior Longitudinal Fascicle in Humans: A Quantitative, In Vivo, DT-MRI Study." Cerebral Cortex 15, no. 6 (June 1, 2005): 854-69. doi:10.1093/cercor/bhh186. superior longitudinal fasciculus I The major component of the SLF, derived from the caudal-inferior parietal region corresponding to the angular gyrus in the human and terminating within the dorsolateral frontal region.See Makris N, et al. "Segmentation of Subcomponents within the Superior Longitudinal Fascicle in Humans: A Quantitative, In Vivo, DT-MRI Study." Cerebral Cortex 15, no. 6 (June 1, 2005): 854-69. doi:10.1093/cercor/bhh186. superior longitudinal fasciculus II The ventral component of the SLF, originating from the supramarginal gyrus and terminating predominantly in the ventral premotor and prefrontal areas.See Makris N, et al. "Segmentation of Subcomponents within the Superior Longitudinal Fascicle in Humans: A Quantitative, In Vivo, DT-MRI Study." Cerebral Cortex 15, no. 6 (June 1, 2005): 854-69. doi:10.1093/cercor/bhh186. superior longitudinal fasciculus III White matter that surrounds a lesion of interest. To identify the otherwise unclassified white matetr that surrounds a tumor to be surgically resected. Perilesional White Matter Signal intensity of a Spin tagging Perfusion MR image. Spin tagging is a technique for the measurement of blood perfusion, based on magnetically labeled arterial blood water as an endogenous tracer. Spin Tagging Perfusion MR Signal Intensity Signal intensity of a Contrast Agent Angio MR image. Contrast Agent Angio MR Signal Intensity Signal intensity of a Time-of-flight (TOF) MR image. Time-of-flight (TOF) is based on the phenomenon of flow-related enhancement of spins entering into an imaging slice. As a result of being unsaturated, these spins give more signal that surrounding stationary spins. Time Of Flight Angio MR Signal Intensity Signal intensity of a Proton Density Weighted MR image. All MR images have intensity proportional to proton density. Images with very little T1 or T2 weighting are called 'PD-weighted'. Proton Density Weighted MR Signal Intensity Signal intensity of T1 Weighted MR image. A T1 Weighted MR image is created typically by using short TE and TR times. T1 Weighted MR Signal Intensity Signal intensity of a T2 Weighted MR image. T2 Weighted image contrast state is approached by imaging with a TR long compared to tissue T1 (to reduce T1 contribution to image contrast) and a TE between the longest and shortest tissue T2s of interest. T2 Weighted MR Signal Intensity Signal intensity of a T2* Weighted MR image. The T2* phenomenon results from molecular interactions (spin spin relaxation) and local magnetic field non-uniformities, which cause the protons to precess at slightly different frequencies. T2* Weighted MR Signal Intensity Signal intensity of a Field Map MR image. A Field Map MR image provides a direct measure of the B0 inhomogeneity at each point in the image. Field Map MR Signal Intensity Coefficient reflecting the fractional anisotropy of the tissues, derived from a diffusion weighted MR image. Fractional anisotropy is proportional to the square root of the variance of the Eigen values divided by the square root of the sum of the squares of the Eigen values. Basser PJ, Pierpaoli C. Microstructural and physiological features of tissues elucidated by quantitative-diffusion-tensor MRI. J Magn Reson B. 1996 Jun;111(3):209-19. Fractional Anisotropy Coefficient reflecting the relative anisotropy of the tissues, derived from a diffusion weighted MR image. Basser PJ, Pierpaoli C. Microstructural and physiological features of tissues elucidated by quantitative-diffusion-tensor MRI. J Magn Reson B. 1996 Jun;111(3):209-19. Relative Anisotropy Dxx Component of the diffusion tensor, quantifying the molecular mobility along the X axis. Volumetric Diffusion Dxx Component Dxy Component of the diffusion tensor, quantifying the correlation of molecular displacements in the X and Y directions. Volumetric Diffusion Dxy Component Dxz Component of the diffusion tensor, quantifying the correlation of molecular displacements in the X and Z directions. Volumetric Diffusion Dxz Component Dyy Component of the diffusion tensor, quantifying the molecular mobility along the Y axis. Volumetric Diffusion Dyy Component Dyz Component of the diffusion tensor, quantifying the correlation of molecular displacements in the Y and Z directions. Volumetric Diffusion Dyz Component Dzz Component of the diffusion tensor, quantifying the molecular mobility along the Z axis. Volumetric Diffusion Dzz Component Signal intensity of a T1 Weighted Dynamic Contrast Enhanced MR image. A T1 Weighted Dynamic Contrast Enhanced MR image reflects the dynamics of diffusion of the exogenous contrast media from the blood pool into the extra vascular extracellular space (EES) of the brain at a rate determined by the blood flow to the tissue, the permeability of the Brain Blood Barrier (BBB), and the surface area of the perfusing vessels. T1 Weighted Dynamic Contrast Enhanced MR Signal Intensity Signal intensity of a T2 Weighted Dynamic Contrast Enhanced MR image. A T2 Weighted Dynamic Contrast Enhanced MR image reflects the T2 of tissue decrease as the Gd contrast agent bolus passes through the brain. T2 Weighted Dynamic Contrast Enhanced MR Signal Intensity Signal intensity of a T2* Weighted Dynamic Contrast Enhanced MR image. A T2* Weighted Dynamic Contrast Enhanced MR image reflects the T2* of tissue decrease as the Gd contrast agent bolus passes through the brain. T2* Weighted Dynamic Contrast Enhanced MR Signal Intensity Signal intensity of a Blood Oxygenation Level image. Used in Photoacoustic Imaging and functional MR. In functional MR BOLD imaging it is used for detecting brain activation and is sensitive to blood oxygenation (but also to cerebral blood flow and volume). Blood Oxygenation Level Accumulated decay event counts in a nuclear medicine projection image. Nuclear Medicine Projection Activity Accumulated decay event counts in a Nuclear Medicine Tomographic image (including PET). Nuclear Medicine Tomographic Activity Spatial Displacement along axis X of a non linear deformable spatial registration image. The X axis is defined in reference to the patient's orientation, and is increasing to the left hand side of the patient. Spatial Displacement X Component Spatial Displacement along axis Y of a non linear deformable spatial registration image. The Y axis is defined in reference to the patient's orientation, and is increasing to the posterior side of the patient. Spatial Displacement Y Component Spatial Displacement along axis Z of a Non linear deformable spatial registration image. The Z axis is defined in reference to the patient's orientation, and is increasing toward the head of the patient. Spatial Displacement Z Component Measured resistance to the flow of blood. Through the vasculature or through a heart value. Hemodynamic Resistance Measured resistance to the flow of blood. Through the vasculature or through a heart value, normalized to a particular indexed scale. Indexed Hemodynamic Resistance Velocity of tissue based on Doppler measurements. Tissue Velocity Velocity of blood flow based on Doppler measurements. Flow Velocity Statistical variance of blood velocity relative to mean. Flow Variance Scalar value related to the elastic properties of the tissue. Elasticity Scalar value related to the volume of blood perfusing into tissue. Perfusion Speed of sound in tissue. Speed of sound Reduction in strength of ultrasound signal as the wave. Ultrasound Attenuation Red component of a true color image (RGB). RGB R Component Green component of a true color image (RGB). RGB G Component Blue component of a true color image (RGB). RGB B Component Y (Luminance) component of a YBR FULL image, as defined in JPEG 2000. YBR FULL Y Component CB (Blue chrominance) component of a YBR FULL image, as defined in JPEG 2000. YBR FULL CB Component CR (Red chrominance) component of a YBR FULL image, as defined in JPEG 2000. YBR FULL CR Component Y (Luminance) component of a YBR PARTIAL image, as defined in JPEG 2000. YBR PARTIAL Y Component CB (Blue chrominance) component of a YBR PARTIAL image, as defined in JPEG 2000. YBR PARTIAL CB Component CR (Red chrominance) component of a YBR PARTIAL image, as defined in JPEG 2000. YBR PARTIAL CR Component Y (Luminance) component of a YBR ICT image (Irreversible Color Transform), as defined in JPEG 2000. YBR ICT Y Component CB (Blue chrominance) component of a YBR ICT image (Irreversible Color Transform), as defined in JPEG 2000. YBR ICT CB Component CR (Red chrominance) component of a YBR ICT image (Irreversible Color Transform), as defined in JPEG 2000. YBR ICT CR Component Y (Luminance) component of a YBR RCT image (Reversible Color Transform), as defined in JPEG 2000. YBR RCT Y Component CB (Blue chrominance) component of a YBR RCT image (Reversible Color Transform), as defined in JPEG 2000. YBR RCT CB Component CR (Red chrominance) component of a YBR RCT image (Reversible Color Transform), as defined in JPEG 2000. YBR RCT CR Component The ability of a material to create an ultrasound return echo. Echogenicity Decrease in the number of photons in an X-Ray beam due to interactions with the atoms of a material substance. Attenuation is due primarily to two processes, absorption and scattering. X-Ray Attenuation true Retired - Replaced by (112031, DCM, "Attenuation Coefficient"). Coefficient that describes the fraction of a beam of X-Rays or gamma rays that is absorbed or scattered per unit thickness of the absorber. This value basically accounts for the number of atoms in a cubic cm volume of material and the probability of a photon being scattered or absorbed from the nucleus or an electron of one of these atoms. X-Ray Attenuation Coefficient Signal intensity of an MR image, not otherwise specified. MR signal intensity Binary value denoting that the segmented property is present. Binary Segmentation Probability, defined as a percentage, that the segmented property occupies the spatial area defined by the voxel. Fractional Probabilistic Segmentation Percentage of the voxel area occupied by the segmented property. Fractional Occupancy Segmentation Spatial dimension, denoting a linear displacement. Linear Displacement Dimension denoting the energy (frequency or wavelength) of photons. Photon Energy Dimension used to sequence events, to compare the duration of events and the intervals between events. Time Spatial dimension, denoting an angle. Angle A spatial dimension axis running along a line between the patient's left and right side. Left-Right Axis A spatial dimension axis running along a line between the patient's head and foot. Head-Foot Axis A spatial dimension axis running along a line between the patient's anterior and posterior sides. Anterior-Posterior Axis A spatial dimension axis running along a line between the apex and base of an organ, object, or chamber. Apex-Base Axis A spatial dimension axis running along a line between the anterior and inferior sides of an organ, object, or chamber. Anterior-Inferior Axis A spatial dimension axis running along a line between the septum and wall of a chamber. Septum-Wall Axis Orientation of a spatial dimension where increasing values run from the right to the left side of the patient. Right To Left Orientation of a spatial dimension where increasing values run from the left to the right side of the patient. Left To Right Orientation of a spatial dimension where increasing values run from the head to the foot of the patient. Head To Foot Orientation of a spatial dimension where increasing values run from the foot to the head of the patient. Foot To Head Orientation of a spatial dimension where increasing values run from the anterior to the posterior side of the patient. Anterior To Posterior Orientation of a spatial dimension where increasing values run from the posterior to the anterior side of the patient. Posterior To Anterior Orientation of a spatial dimension where increasing values run from the apex to the base. Apex To Base Orientation of a spatial dimension where increasing values run from the base to the apex. Base To Apex Orientation of a spatial dimension where increasing values run from the anterior to the inferior. Anterior To Inferior Orientation of a spatial dimension where increasing values run from the inferior to the anterior. Inferior To Anterior Orientation of a spatial dimension where increasing values run from the septum of a chamber to the opposite wall. Septum To Wall Orientation of a spatial dimension where increasing values run from the opposite wall to the septum of a chamber. Wall To Septum The x coordinate of the upper left hand corner (center of the first voxel transmitted) of the image, with respect to the patient-based coordinate system. Image Position (Patient) X The y coordinate of the upper left hand corner (center of the first voxel transmitted) of the image, with respect to the patient-based coordinate system. Image Position (Patient) Y The z coordinate of the upper left hand corner (center of the first voxel transmitted) of the image, with respect to the patient-based coordinate system. Image Position (Patient) Z The x value of the first row direction cosine with respect to the patient, with respect to the patient-based coordinate system. Image Orientation (Patient) Row X The y value of the first row direction cosine with respect to the patient, with respect to the patient-based coordinate system. Image Orientation (Patient) Row Y The z value of the first row direction cosine with respect to the patient, with respect to the patient-based coordinate system. Image Orientation (Patient) Row Z The x value of the first column direction cosine with respect to the patient, with respect to the patient-based coordinate system. Image Orientation (Patient) Column X The y value of the first column direction cosine with respect to the patient, with respect to the patient-based coordinate system. Image Orientation (Patient) Column Y The z value of the first column direction cosine with respect to the patient, with respect to the patient-based coordinate system. Image Orientation (Patient) Column Z Number of rows in the pixel data of the image. Pixel Data Rows Number of columns in the pixel data of the image. Pixel Data Columns The family of algorithm(s) that best describes the software algorithm used. Algorithm Family The name assigned by a manufacturer to a specific software algorithm. Algorithm Name The input parameters used by a manufacturer to configure the behavior of a specific software algorithm. Algorithm Parameters The software version identifier assigned by a manufacturer to a specific software algorithm. Algorithm Version The type of correlation applied to detection results. Temporal, spatial. Analysis Performed Assignment of intermediate or overall interpretation results to a general category. Assessment Category true Retired - Replaced by (129715009, SCT, "Breast composition"). Assessment of annotating tissues in breast; generally including fatty, mixed or dense Breast composition Purpose of reference for an SCOORD Content Item that is an outline of the breast that includes the pectoral muscle tissue Purpose of Reference for Content Item of value type COMPOSITE or SCOORD Breast Outline including Pectoral Muscle Tissue The type of distribution associated with detected calcifications. Calcification Distribution Identification of the morphology of detected calcifications. Calcification Type The central point of a finding or feature. May be used as the Purpose of Reference for Content Item of value type COMPOSITE or SCOORD, or a qualitative observation on an ROI. Center The likelihood that the feature analyzed is in fact the type of feature identified. Certainty of Feature The likelihood that the finding detected is in fact the type of finding identified. Certainty of Finding The certainty that a device places on an impression, where 0 equals no certainty and 100 equals certainty. Certainty of Impression A location identifier based on clockface numbering or anatomic subregion. Clockface or region An item that is an inferred correlation relating two or more individual findings or features. Composite Feature The inferred relationship between the findings or features making up a composite feature. Composite type General assessment of whether or not CAD processing was successful, and whether any findings resulted. CAD Processing and Findings Summary The date the data creation started. Content Date The time the data creation started. Content Time A location identifier based on a feature's inferred distance from the surface of the associated anatomy. Depth A textual description of the change that occurred over time in a qualitative characteristic of a feature. Description of Change The type of finding sought after by a specific algorithm applied to one image. Detection Performed A general change that occurred within an imaged area between a prior imaging procedure and the current imaging procedure. Differential Diagnosis/Impression A group of analysis algorithms that were attempted, but failed. Failed Analyses A group of detection algorithms that were attempted, but failed. Failed Detections For projection radiography, the horizontal physical distance measured at the front plane of an Image Receptor housing between the center of each pixel (spacing between the centers of adjacent columns). For tomographic images, the horizontal physical distance in the patient between the center of each pixel. Horizontal Pixel Spacing Laterality of (possibly paired) body part contained in an image. Image Laterality A container that references all image data used as evidence to produce a report. Image Library A numeric value in the range 0 to 100, inclusive, where 0 is worst quality and 100 is best quality. Image Quality Rating Purpose of reference for an SCOORD Content Item that identifies a specific region of interest within an image Purpose of Reference for Content Item of value type COMPOSITE or SCOORD Image Region The projection of the anatomic region of interest on an image receptor. Image View Modifier for Image View. Image View Modifier Free-form text describing the overall or an individual impression. Impression Description A container for a group of related results from interpretation of one or more images and associated clinical information. Individual Impression/​Recommendation The X-Ray attenuation of a lesion relative to the expected attenuation of an equal volume of fibroglandular breast tissue. Lesion Density A structured report containing the results of computer-aided detection or diagnosis applied to breast imaging and associated clinical information. Mammography CAD Report The characteristic of the boundary, edges or border of a detected lesion. Margins The quantity of calcifications detected within an identified group or cluster. Number of calcifications A non-lesion object identified within one or more images. Object type Purpose of reference for a COMPOSITE Content Item that identifies it as the original source of evidence for another Content Item in the report Purpose of Reference for Content Item of value type COMPOSITE or SCOORD Original Source The outline of a finding or feature. May be used as the Purpose of Reference for Content Item of value type COMPOSITE or SCOORD, or a qualitative observation on an ROI. Outline The inferred type of disease associated with an identified feature. Pathology The patient orientation relative to the image plane, specified by a value that designates the anatomical direction of the positive column axis (top to bottom). Patient Orientation Column The patient orientation relative to the image plane, specified by a value that designates the anatomical direction of the positive row axis (left to right). Patient Orientation Row Purpose of reference for an SCOORD Content Item that is an outline of the pectoral muscle tissue only Purpose of Reference for Content Item of value type COMPOSITE or SCOORD Pectoral Muscle Outline Percent of breast area that is mammographically dense, excluding pectoralis muscle. Percent Fibroglandular Tissue The likelihood that an identified finding or feature is cancerous. Probability of cancer A location identifier based on the division of an area into four regions. Quadrant location A qualitative characteristic of a feature that has changed over time. Qualitative Difference The effect of the quality of an image on its usability. Quality Assessment The quality control standard used to make a quality assessment. Quality Control Standard A specific quality related deficiency detected within an image. Quality Finding Recommended type of follow-up to an imaging procedure, based on interpreted results. Recommended Follow-up Recommended follow-up date to an imaging procedure, based on interpreted results. Recommended Follow-up Date Recommended follow-up interval to an imaging procedure, based on interpreted results. Recommended Follow-up Interval The recommendation of the producer of a Content Item regarding presentation of the Content Item by recipients of the report. Rendering Intent An indication of how widespread the detection of a feature is within the analyzed image data. Scope of Feature A textual description of the contents of a selected region identified within an image. Selected Region Description An item that was detected on one image. Single Image Finding Date on which the acquisition of the study information was started. Study Date Time at which the acquisition of the study information was started. Study Time A group of analysis algorithms that were attempted and completed successfully. Successful Analyses A group of detection algorithms that were attempted and completed successfully. Successful Detections An overall indication of whether the CAD detection algorithms applied were completed successfully. Summary of Detections An overall indication of whether the CAD analysis algorithms applied were completed successfully. Summary of Analyses For projection radiography, the vertical physical distance measured at the front plane of an Image Receptor housing between the center of each pixel (spacing between the centers of adjacent rows). For tomographic images, the vertical physical distance in the patient between the center of each pixel. Vertical Pixel Spacing A radiographic projection that has been with the patient lying on a table with the X-Ray source on one side of the table and the detector on the other. May describe a cross-table cervical spine, chest or pelvis X-Ray image. Crosstable One of a number of discrete points on the Receiver-Operator Characteristics (ROC) curve that reflects the expected sensitivity and specificity of a CAD algorithm, where zero indicates the highest specificity, lowest sensitivity operating point. The value should not exceed the Maximum CAD Operating Point. CAD Operating Point The maximum value of CAD Operating Point for the specific CAD algorithm used. Maximum CAD Operating Point The intended interpretation of a CAD Operating Point. CAD Operating Point Description The number of false CAD markers per image. Correlates to inverse of Image Specificity. False Markers per Image The number of false markers per collection of images that are CAD processed as a group. Correlates to inverse of Case Specificity. False Markers per Case The percentage of cancers that should be detected by a CAD algorithm where CAD marks the cancers in at least one view. Case Sensitivity The percentage of cancers that should be detected by a CAD algorithm where CAD marks the cancers in each view. Lesion Sensitivity The percentage of cases (collections of images CAD processed as a group) without cancer that have no CAD findings whatsoever. Correlates to inverse of False Markers per Case. Case Specificity The percentage of images without cancer that have no CAD findings whatsoever. Correlates to inverse of False Markers per Image. Image Specificity The CAD operating point that is recommended for initial display by the creator of the structured report. Recommended CAD Operating Point A list of CAD operating points including their corresponding characteristics. CAD Operating Point Table A specific area of interest noted within an image. Selected region The surface shape of all or a portion of breast related anatomy. Breast geometry Image quality incorporates the following clinical image evaluation parameters: assessment of positioning, compression, artifacts, exposure, contrast, sharpness, and labeling. Image Quality A finding or feature that is identified as a non-anatomic foreign object. Non-lesion true Retired - Replaced by (129793001, SCT, "Mammography breast density"). A space-occupying lesion identified in a single image or projection Density true Retired - Replaced by (129770007, SCT, "Individual Calcification"). A single identified calcification Individual Calcification true Retired - Replaced by (129769006, SCT, "Calcification Cluster"). Multiple calcifications identified as occupying a small area of tissue (less than 2 cc) Calcification Cluster Straightening or thickening of Cooper's ligaments. Cooper's ligament changes An abnormality noted at imaging within the dermis of the breast. Mass in the skin An abnormality noted at imaging on the epidermis of the breast. Mass on the skin An assessment category to indicate that images have been acquired to assess marker placement following a breast interventional procedure. Post Procedure Mammograms for Marker Placement An indication that the patient should seek post procedural follow-up directives from a clinical health care provider. Follow-up post biopsy as directed by clinician A recommendation on a patient with known cancer to take steps appropriate to the diagnosis. Known biopsy proven malignancy - take appropriate action Positioning of a radiopaque marker. Marker placement Patient has previous diagnosis of breast cancer resulting in mastectomy. Personal history of breast cancer with mastectomy Patient has had biopsy containing proven malignancy. Known biopsy proven malignancy Patient has a finding of mass reported on a prior imaging study. Image detected mass A breast imaging procedure performed on a specific area of the breast. Targeted A breast imaging procedure performed on the entire breast. Survey A cluster of tiny anechoic foci each smaller than 2-3 mm in diameter with thin (less than 0.5 mm) intervening septations and no discrete solid components. Clustered microcysts A fluid filled mass most commonly characterized by homogeneous low-level internal echoes on ultrasound. Complicated cyst Views not inclusive of MLO and CC (BI-RADS®). Additional projections A spot or coned down compression of the breast providing a reduction in the thickness and a magnification of the localized area of interest and improved separation of breast tissue. Spot magnification view(s) true Retired - Replaced by (16310003, SCT, "Diagnostic ultrasonography"). Ultrasound Obtain previous mammography studies to compare to present study. Old films for comparison true Retired - Replaced by (18102001, SCT, "Mammary ductogram"). A medical procedure used for the sampling of mammary duct tissue Ductography Follow up study at 12 months for women ≥ 40 years of age having a prior negative study and no mitigating risk factors for breast cancer. Normal interval follow-up Any decision to perform tissue acquisition should be based on clinical assessment. Any decision to biopsy should be based on clinical assessment Follow-up at short interval (1-11 months). Follow-up at short interval (1-11 months) Tissue acquisition should be considered. Biopsy should be considered Breast tissue acquisition following the identification of an area of concern with the placement of a needle or needle-wire assembly. Needle localization and biopsy Pathologic analysis of breast tissue and lesions using core tissue samples. Histology using core biopsy Lesions that do not have the characteristic morphologies of breast cancer but have a definite probability of being malignant. There is a sufficient concern to urge a biopsy. Suggestive of malignancy - take appropriate action Cellular analysis of specimen. Cytologic analysis Tissue acquisition should be strongly considered. Biopsy should be strongly considered Lesions have a high probability of being cancer, which require additional action. Highly suggestive of malignancy - take appropriate action The producer of a report intends for a recipient of the report to present or display the associated Content Item. Presentation Required: Rendering device is expected to present The producer of a report considers the presentation or display of the associated Content Item by a recipient to be optional. Presentation Optional: Rendering device may present The producer of a report intends for a recipient of the report NOT to present or display the associated Content Item. Not for Presentation: Rendering device expected not to present The associated Content Items are identified as being the same finding or feature at different points in time. Target Content Items are related temporally The associated Content Items are identified as being the same finding or feature on different projections taken at the same point in time. Target Content Items are related spatially The associated Content Items are identified as being related side-to-side. Target Content Items are related contra-laterally There is one image in the interpreted data. Feature detected on the only image There is more than one image of the same modality in the interpreted data. Feature detected on only one of the images There is more than one image of the same modality in the interpreted data. Feature detected on multiple images The interpreted data contains images from multiple modalities. Feature detected on images from multiple modalities true Retired - Replaced by (12402003, SCT, "Scar tissue"). The fibrous tissue replacing normal tissues destroyed by disease or injury Scar tissue true Retired - Replaced by (129463006, SCT, "J Wire"). A medical appliance used for localization of non palpable breast lesions to insure that the proper area is removed in a surgical biopsy J Wire true Retired - Replaced by (14106009, SCT, "Cardiac Pacemaker"). A medical appliance used for regulating cardiac rhythms Pacemaker true Retired - Replaced by (129460009, SCT, "Compression paddle"). A compression device used for obtaining mammographic images Paddle true Retired - Replaced by (228761004, SCT, "Collimator"). A device used for restricting an X-Ray beam Collimator true Retired - Replaced by (129467007, SCT, "ID Plate"). An area designated on a radiographic film for facility and patient ID information ID Plate Site specific markers. Other Marker The value of the concept is not specified This term may not be used in Context Group Extensions; see Unspecified Image quality deficiency according to MQSA. View and Laterality Marker is missing Image quality deficiency according to MQCM. View and Laterality Marker does not have both view and laterality Image quality deficiency according to MQCM. View and Laterality Marker does not have approved codes Image quality deficiency according to MQCM. View and Laterality Marker is not near the axilla Image quality deficiency according to MQCM. View and Laterality Marker overlaps breast tissue Image quality deficiency according to MQCM. View and Laterality Marker is partially obscured Image quality deficiency. View and Laterality Marker is incorrect Image quality deficiency. View and Laterality Marker is off image Image quality deficiency according to MQCM. Flash is not near edge of film Image quality deficiency according to MQSA. Flash is illegible, does not fit, or is lopsided Image quality deficiency according to MQCM. Flash doesn't include patient name and additional patient id Image quality deficiency according to MQCM. Flash doesn't include date of examination Image quality deficiency according to MQSA. Flash doesn't include facility name and location Image quality deficiency according to MQCM. Flash doesn't include technologist identification Image quality deficiency according to MQCM. Flash doesn't include cassette/screen/detector identification Image quality deficiency according to MQCM. Flash doesn't include mammography unit identification Image quality deficiency according to MQCM. Date sticker is missing Image quality deficiency according to MQCM. Technical factors missing Image quality deficiency according to MQCM. Collimation too close to breast Image quality deficiency according to MQCM. Inadequate compression Image quality deficiency according to MQCM. MLO Insufficient pectoral muscle Image quality deficiency according to MQCM. MLO No fat is visualized posterior to fibroglandular tissues Image quality deficiency according to MQCM. MLO Poor separation of deep and superficial breast tissues Image quality deficiency according to MQCM. MLO Evidence of motion blur Image quality deficiency according to MQCM. MLO Inframammary fold is not open Image quality deficiency according to MQCM. CC Not all medial tissue visualized Image quality deficiency according to MQCM. CC Nipple not centered on image Image quality deficiency according to MQCM. CC Posterior nipple line does not measure within 1 cm of MLO Image quality deficiency. Nipple not in profile Image quality deficiency according to MQCM. Insufficient implant displacement incorrect Signals that do not faithfully reproduce actual anatomic structures because of distortion or of addition or deletion of information. Image artifact(s) Feature(s) arising from the acquisition unit's anti-scatter grid mechanism. For two-dimensional systems, such features include those of mechanically damaged or incorrectly positioned grids. For moving or Bucky grids, artifacts may result from intentional grid motion that is inadequate in duration or velocity uniformity. Grid artifact(s) Inadequate arrangement of the anatomy of interest with respect to the X-Ray field and image detector sensitive area. Examples: 1) positioning is "cutoff" when the projection of anatomy of interest falls outside the sensitive area of the detector; 2) "cone cut", in which the X-Ray field does not adequately cover the anatomy of interest; 3) detector's sensitive surface is too small to cover the projection of the anatomy of interest; 4) improper angular orientation or "rotation" of anatomy of interest with respect to the X-Ray source, or detector; 5) projection of other anatomy or clothing over the anatomy of interest in the image. Positioning Unacceptable image blur resulting from motion of the anatomy of interest during exposure or the inadequately compensated motion of X-Ray source with respect to the image detector during exposure. Motion blur Inadequate number of quanta reached the detector during exposure. Reasons for under exposed images include low kVp, low mAs product, excess Source Image Distance. Under exposed images have inadequate signal and higher noise in the areas of interest. Under exposed An excess number of quanta reached the detector during exposure. Reasons for over exposed images include high kVp, high mAs product, short Source Image Distance. Over exposed images have high signal and lower noise in the areas of interest. Over exposed area may demonstrate lack of contrast from over saturation of the detector. Over exposed No evidence of a patient exposure. No image Superposed features or flaws of the detector. Detector artifact(s) Features or discontinuities arising from causes other than the anti-scatter grid and image detector. Artifact(s) other than grid or detector artifact Failure of the device to operate according to mechanical design specifications. Mechanical failure Failure of a device to operate according to electrical design specifications. Electrical failure Attributable to software used in generation or handling of image. Software failure Images processed inappropriately, not following appropriate protocol. Inappropriate image processing Failure that is not mechanical or electrical or otherwise described. Other failure Unidentified or unknown cause of failure. Unknown failure The attempted process was completely successful. Succeeded The attempted process succeeded in some ways, but failed in others. Partially Succeeded The attempted process completely failed. Failed No process was performed. Not Attempted Analysis of a related group of findings or features detected during image data inspection, to produce a summary impression and/or recommendation. Individual Impression/​Recommendation Analysis Analysis of all groups of findings or features, to produce a single impression and/or recommendation. Overall Impression/​Recommendation Analysis Quality of an image renders it unusable for the intended purpose. Unusable - Quality renders image unusable Quality of an image is usable for the intended purpose, but does not meet the quality control standard. Usable - Does not meet the quality control standard Quality of an image is usable for the intended purpose and meets the quality control standard. Usable - Meets the quality control standard An image quality control standard specified by the American College of Radiology. Mammography Quality Control Manual 1999, ACR An image quality control standard in the US Code of Federal Regulations. Title 21 CFR Section 900, Subpart B An image quality control standard specified or adopted by the institution responsible for the document. Institutionally defined quality control standard No findings resulted upon successful completion of all attempted computer-aided detection and/or analysis. All algorithms succeeded; without findings One or more findings resulted upon successful completion of all attempted computer-aided detection and/or analysis. All algorithms succeeded; with findings No findings resulted from the attempted computer-aided detection and/or analysis, but one or more failures occurred in the process. Not all algorithms succeeded; without findings One or more findings resulted from the attempted computer-aided detection and/or analysis, but one or more failures occurred in the process. Not all algorithms succeeded; with findings All of the attempted computer-aided detection and/or analysis failed, so there could be no findings. No algorithms succeeded; without findings true Retired - Replaced by (22024005, SCT, "Adenolipoma"). A benign tumor having glandular characteristics but composed of fat, with the presence of normal mammary ducts Adenolipoma true Retired - Replaced by (67617000, SCT, "Ductal hyperplasia, Usual"). Ductal hyperplasia true Retired - Replaced by (128765009, SCT, "Adenomyoepithelioma"). Neoplasms composed of myoepithelial cells Adenomyoepithelioma Axillary node that is normal in appearance with no associated pathology. Normal axillary node Axillary node containing calcifications. Axillary node with calcifications Excessive proliferation of normal tissue arrangement of the axillary node. Axillary node hyperplasia true Retired - Replaced by (130963002, SCT, "Asynchronous involution of breast"). Asynchronous involution Cyst with benign morphology containing blood. Benign cyst with blood Calcifications having typically benign morphology. They are not of intermediate or high probability of concern for malignancy. Benign Calcifications true Retired - Replaced by (47488001, SCT, "Intracystic papilloma"). Growing within a cystic adenoma, filling the cavity with a mass of branching epithelial processes Intracystic papilloma Adenoma located in mammary duct, present as discrete sclerotic nodules, solitary or multiple. Ductal adenoma The occurrence of fibrous tumor-forming stromal proliferation in patients with diabetes mellitus. Diabetic fibrous mastopathy true Retired - Replaced by (47284001, SCT, "Extra abdominal desmoid"). A deep seated firm tumor frequently occurring on the chest consisting of collagenous tissue that infiltrates surround muscle; frequently recurs but does not metastasize Extra abdominal desmoid true Retired - Replaced by (419670003, SCT, "Epidermal inclusion cyst"). A cyst formed of a mass of epithelial cells, as a result of trauma has been pushed beneath the epidermis. The cyst is lined with squamous epithelium and contains concentric layers or keratin Epidermal inclusion cyst Excessive proliferation of fibroadenoma tissue. Fibroadenomatoid hyperplasia A lipoma with an abundant stroma of fibrous tissue. Fibroadenolipoma true Retired - Replaced by (37058002, SCT, "Foreign body (reaction)"). Foreign body (reaction) true Retired - Replaced by (42385006, SCT, "Galactocele"). Retention cyst caused by occlusion of a lactiferous duct Galactocele true Retired - Replaced by (93473009, SCT, "Hemangioma of subcutaneous tissue"). A congenital anomaly that leads to a proliferation of blood vessels leading to a mass that resembles a neoplasm, not located in parenchymal areas but subcutaneous Hemangioma - nonparenchymal, subcutaneous true Retired - Replaced by (76197007, SCT, "Hyperplasia, usual"). Hyperplasia, usual A form of fibrocystic disease in young woman with florid and sclerosing adenosis that microscopically may suggest carcinoma. Juvenile papillomatosis true Retired - Replaced by (128651002, SCT, "Lactating adenoma"). Enlarging masses during lactation. A circumscribed benign tumor composed primarily of glandular structures with scanty stroma, with prominent secretory changes in the duct Lactating adenoma Changes related to the process of lactation. Lactational change A papilloma pertaining to large mammary duct. Large duct papilloma true Retired - Replaced by (128738002, SCT, "Myofibroblastoma"). Solitary or multiple tumors of muscles and fibrous tissues, or tumors composed of myofibroblasts Myofibroblastoma Irregular clusters of small tubules are present in adipose or fibrous tissue, resembling tubular carcinoma but lacking stromal fibroblastic proliferation. Microglandular adenosis Papilloma typically involving an aggregate of adjacent ducts in the periphery of the breast, likely representing involvement of several foci of one or two duct systems. Multiple Intraductal Papillomas No abnormality. No abnormality Normal breast tissue. Normal breast tissue true Retired - Replaced by (81669005, SCT, "Neurofibromatosis"). Condition in which there are tumors of various sizes on peripheral nerves. They may be neuromas or fibromas Neurofibromatosis A cyst resulting from the loss of the epithelial lining of a sebaceous dermoid or lacteal cyst. Oil cyst (fat necrosis cyst) Breast tissue with characteristics of a benign nature, following breast reduction surgery. Post reduction mammoplasty A benign stromal lesion composed of intermixed stromal and epithelial elements. The lobular and duct structures of the breast parenchyma are separated by an increased amount of stroma, non specific proliferative epithelial changes include hyperplasia of duct and lobular epithelium often with accentuation of myoepithelial cells and aprocine metaplasia with or without cyst formation. Pseudoangiomatous stromal hyperplasia true Retired - Replaced by (133855003, SCT, "Radial scar"). An nonencapsulated stellate lesion consisting of a fibroelastic core and radiating bands of fibrous connective tissue containing lobules manifesting adenosis and ducts with papillary or diffuse intraductal hyperplasia Radial scar true Retired - Replaced by (50916005, SCT, "Sclerosing adenosis"). Prominent interductal fibrosis of the terminal ductules Sclerosing adenosis Nodular inflammatory lesions due to the presence of silicone in the breast tissue. Silicone granuloma The morphologic status of the nipple. Nipple Characteristic Spontaneous excessive proliferation of breast tissue, usually found in younger women. Virginal hyperplasia Papilloma(s) pertaining the peripheral ducts. Peripheral duct papillomas Axillary node with lymphoid tissue neoplasm. Axillary node with lymphoma Metastatic disease to the axillary node. Axillary nodal metastases true Retired - Replaced by (39000009, SCT, "Angiosarcoma"). A malignant neoplasm occurring most often in breast and skin, believed to originate from endothelial cells of blood vessels, microscopically composed of closely packed round or spindle shaped cells, some of which line small spaces resembling vascular clefts Angiosarcoma Histological changes to the vascular system related to an invasive process. Blood vessel (vascular) invasion Carcinoma of the breast found in patients less than 20 years of age. Carcinoma in children A carcinoma found in supernumerary breasts and aberrant breast tissue. Carcinoma in ectopic breast A carcinoma that synthesizes substances, including hormones, not considered to be normal products of the breast. Carcinoma with endocrine differentiation A basal cell carcinoma that arises in the nipple of the breast. Basal cell carcinoma of nipple true Retired - Replaced by (22694002, SCT, "Carcinoma with metaplasia"). Carcinoma with metaplasia Tissue changes to bones and cartilage. Cartilaginous and osseous change Carcinoma of the breast presenting during pregnancy or lactation. Carcinoma in pregnancy and lactation true Retired - Replaced by (63264007, SCT, "Carcinosarcoma"). A malignant neoplasm that contains elements of carcinoma and sarcoma, so extensively intermixed as to indicate neoplasia of epithelial and mesenchymal tissue Carcinosarcoma Comedocarcinoma of a duct with areas of necrotic tissue. Intraductal comedocarcinoma with necrosis A non-invasive carcinoma restricted to the glandular lumen characterized by less aggressive malignant cytologic features and behavior. Intraductal carcinoma, low grade true Retired - Replaced by (128696009, SCT, "Intraductal carcinoma micro-papillary"). Intraductal carcinoma micro-papillary A malignant neoplasm characterized by the formation of numerous, irregular, finger-like projections of fibrous stroma that is covered with a surface layer of neoplastic epithelial cells found in a cyst. Intracystic papillary carcinoma Carcinoma with both characteristics of localized and spreading disease. Invasive and in-situ carcinoma true Retired - Replaced by (89740008, SCT, "Invasive lobular carcinoma"). Invasive lobular carcinoma Mammary infiltrates as a secondary manifestation in patients with established leukemia. Leukemic infiltration Histological changes to the lymphatic system related to an invasive process. Lympathic vessel invasion true Retired - Replaced by (1163043007, SCT, "Lymphoma"). A heterogeneous group of neoplasms arising in the reticuloendoethelial and lymphatic systems Lymphoma A small carcinoma, either asymptomatic or giving rise to metastases without symptoms due to the primary carcinoma presenting with metastatic disease in the axillary lymph nodes. Occult carcinoma presenting with axillary lymph node metastases A malignant lesion in the breast with morphologic patterns not typical of breast carcinoma arising from a non-mammary malignant neoplasm. Metastatic cancer to the breast A malignant lesion in the breast with morphologic patterns not typical of breast carcinoma arising from a neoplasm in the colon. Metastatic cancer to the breast from the colon A malignant lesion in the breast with morphologic patterns not typical of breast carcinoma arising from a neoplasm in the lung. Metastatic cancer to the breast from the lung A malignant lesion in the breast with morphologic patterns not typical of breast carcinoma arising from a melanoma. Metastatic melanoma to the breast A malignant lesion in the breast with morphologic patterns not typical of breast carcinoma arising from a neoplasm in the ovary. Metastatic cancer to the breast from the ovary A malignant lesion in the breast with morphologic patterns not typical of breast carcinoma arising from a sarcoma. Metastatic sarcoma to the breast Multiple foci of non-invasive carcinoma restricted to the glandular lumen. Multifocal intraductal carcinoma A malignant lesion in an axillary node arising from a non-axillary neoplasm. Metastatic disease to axillary node true Retired - Replaced by (34360000, SCT, "Malignant fibrous histiocytoma"). Malignant fibrous histiocytoma Multiple sites of ductal carcinoma. Multifocal invasive ductal carcinoma A malignant lesion in a intramammary lymph node arising from a non-intramammary lymph node neoplasm. Metastasis to an intramammary lymph node A malignant melanoma of the skin that arises in the nipple of the breast. Malignant melanoma of nipple true Retired - Replaced by (126510002, SCT, "Neoplasm of the mammary skin"). Neoplasm of the mammary skin true Retired - Replaced by (10376009, SCT, "Papillary carcinoma in-situ"). Papillary carcinoma in-situ Recurrent malignancy. Recurrent malignancy Squamous cell carcinoma to the terminal portion of the alveolar. Squamous cell carcinoma of the nipple A non-invasive carcinoma restricted to the glandular lumen characterized by more aggressive malignant cytologic features and behavior. Intraductal carcinoma, high grade true Retired - Replaced by (30156004, SCT, "Invasive cribriform carcinoma"). Invasive cribriform carcinoma An indication that some or all of the margin of a lesion has sharp corners, often forming acute angles. Angular margins Calcifications that vary in sizes and shapes and are usually smaller than0.5 mm in diameter. Fine pleomorphic calcification Coarse calcifications that are 0.5 mm or greater in size. Macrocalcifications An indicator that calcifications are imbedded within a mass. Calcifications within a mass An indicator that calcifications are imaged outside of a mass finding. Calcifications outside of a mass Tissue composition of the breast noted on sonography. Breast background echotexture Fat lobules and uniformly echogenic bands of supporting structures comprise the bulk of breast tissue. Homogeneous fat echotexture A uniformly echogenic layer of fibroglandular tissue is seen beneath a thin layer of subcutaneous fat. Homogeneous fibroglandular echotexture The breast texture is characterized by multiple small areas of increased and decreased echogenicity. Heterogeneous echotexture Referential relationship of the finding to the imaging device as noted on sonography. Orientation The long axis of a lesion parallels the skin line ("wider-than-tall" or in a horizontal orientation). Parallel The anterior-posterior or vertical dimension is greater than the transverse or horizontal dimension. Not parallel The lesion boundary describes the transition zone between the mass and the surrounding tissue. Lesion boundary The sharp demarcation between the lesion and surrounding tissue can be imperceptible or a distinct well-defined echogenic rim of any thickness. Abrupt interface There is no sharp demarcation between the mass and the surrounding tissue, which is bridged by an echogenic transition zone. Echogenic halo An imaging characteristic of resonance noted during sonography. Echo pattern Without internal echoes. Anechoic Having increased echogenicity relative to fat or equal to fibroglandular tissue. Hyperechoic Mass contains both anechoic and echogenic components. Complex Defined relative to fat; masses are characterized by low-level echoes throughout. Appearance of a complicated cyst or fibroadenoma. Hypoechoic Having the same echogenicity as fat (a complicated cyst or fibroadenoma may be isoechoic or hypoechoic). Isoechoic The attenuation characteristics of a mass with respect to its acoustic transmission. Posterior acoustic features No posterior shadowing or enhancement. No posterior acoustic features Increased posterior echoes. Posterior enhancement Decreased posterior echoes; edge shadows are excluded. Posterior shadowing More than one pattern of posterior attenuation, both shadowing and enhancement. Combined posterior enhancement and shadowing Sonographic appearance of adjacent structures relative to a mass finding. Identifiable effect on surrounding tissues Characterization of vascularization in region of interest. Vascularity Vascularity not evident, such as on ultrasound. Vascularity not present Vascularity not evaluated. Vascularity not assessed Vascularity on imaging is seen within a lesion. Vascularity present in lesion Vascularity on imaging is seen immediately adjacent to a lesion. Vascularity present immediately adjacent to lesion Vascularity on imaging is considered diffusely elevated within the surrounding breast tissue. Diffusely increased vascularity in surrounding tissue Relationship of the new anomaly to other clinical or imaging anomalies. Correlation to other Findings An indication that the current imaging finding relates to a finding from a clinical breast examination. Correlates to physical examination findings An indication that the current imaging finding relates to a finding from a mammography study. Correlates to mammography findings An indication that the current imaging finding relates to a finding from a breast MRI study. Correlates to MRI findings An indication that the current imaging finding relates to a finding from a breast ultrasound study. Correlates to ultrasound findings An indication that the current imaging finding relates to a finding from an imaging study. Correlates to other imaging findings An indication that the current imaging finding has no relation to findings from any other imaging study. No correlation to other imaging findings An indication that the current imaging finding has no relation to any other clinical findings. No correlation to clinical findings Classification of the cancer as invasive, DCIS, or other. Malignancy Type A malignancy that has spread beyond an area of focus. Invasive breast carcinoma A breast cancer with malignant pathology findings that are not classified as invasive or in situ. Other malignancy type A specific timeframe during menses. Menstrual Cycle Phase In the first week of the menstrual cycle phase, that is, one week following menses. 1st week In the second week of the menstrual cycle phase, that is, two weeks following menses. 2nd week In the third week of the menstrual cycle phase, that is, three weeks following menses. 3rd week An estimated period of time. Estimated Timeframe An event occurred less than 3 months ago. < 3 months ago An event occurred between 4 months and 1 year ago. 4 months to 1 year ago An event occurred longer than 1 year ago. > 1 year ago The timing of an event is not recalled. Timeframe uncertain Report title for the diagnostic report for one or more breast imaging or intervention procedures. Breast Imaging Report true Retired - Replaced by (18785-6, LN, "Indications for Procedure"). Concept name for the description of why a procedure has been performed. Reason for Procedure A finding during clinical examination (i.e., history and physical examination) such as pain, palpable mass or discharge. Clinical Finding First screening mammogram taken for patient that is used as a comparison baseline for further examinations. Baseline screening mammogram First mammogram taken for a patient without regard to whether it was for screening or a diagnostic procedure. First mammogram ever Concept name for the material of which a breast prosthetic device is constructed. Implant type A numeric count of findings classified as similar in nature. Number of similar findings Concept name for the status of a breast prosthetic device as noted by imaging. Implant finding Mammogram using traditional X-Ray film. Film Screen Mammography true Retired - Replaced by (46342-2, LN, "breast ffd mammogram"). Mammogram using a digital image acquisition system. Digital Mammography Referred for evaluation by a surgeon. Surgical consult Computer aided detection and/or computer aided diagnosis for mammography. Mammography CAD Concept name for a text-based section of a report. Narrative Summary A title for a report section that summarizes all interpretation results for a report with one overriding assessment. Benign or negative. Overall Assessment Concept name for a collection of supporting evidence for a report. Supplementary Data Prior study indicates that additional imaging be performed to further evaluate a suspicious or questionable anatomic region. Additional evaluation requested from prior study The prior study recommended a follow-up breast imaging study in 1 to 11 months (generally in 6 months). Follow-up at short interval from prior study Prior breast augmentation (breast enlargement) and is not presenting with any symptoms. History of breast augmentation, asymptomatic Review or second opinion made on an image performed outside of the facility. Review of an outside study Additional breast imaging performed at the time of the patient's screening mammogram. Additional evaluation requested from abnormal screening study Patient has had previous benign breast biopsies. History of benign breast biopsy Patient has had a prior surgery such as a lumpectomy or quadrantectomy to remove malignant breast tissue, but breast tissue remains. Personal history of breast cancer with breast conservation therapy The results of a physical examination performed on the patient, possibly including the results of inspection, palpation, auscultation, or percussion. Physical Examination Results The result of assessing the current imaging study in comparison to previous imaging studies. Comparison to previous studies An abnormality observed during ductography where the ductal system within the breast fills in an abnormal pattern. Ductography is an imaging study in which a radio opaque contrast media is introduced into the ductal system of the breast through the nipple and images of the ductal system are obtained. Intraluminal filling defect During ductography an observation of more than one filling abnormality within the breast ductal system. Multiple filling defect An abnormality observed during ductography where the ductal system within the breast terminates in an unusual fashion. Abrupt duct termination Abnormal flowage of contrast media within the breast noted on ductography. Extravasation An abnormality observed during ductography where the ductal system within the breast appears narrow. Duct narrowing During ductography an observation of the contrast media filling a cyst within the breast. Cyst fill The area and line within the anatomy through which a needle or instrument passes during an interventional procedure. Instrument Approach The line within the anatomy from the lower outer to the upper inner aspect. Through which a needle or instrument passes in an interventional procedure. Inferolateral to superomedial The line within the anatomy from the lower inner to the upper outer aspect. Through which a needle or instrument passes in an interventional procedure. Inferomedial to superolateral The line within the anatomy from the upper outer to the lower inner aspect. Through which a needle or instrument passes in an interventional procedure. Superolateral to inferomedial The line within the anatomy from the upper inner to the lower outer aspect. Through which a needle or instrument passes in an interventional procedure. Superomedial to inferolateral The number of times a biopsy instrument is passed through an area of interest. Number of passes The number of biopsy specimens obtained from an interventional procedure. Number of specimens An indicator of whether or not a biopsy or localizing needle in an interventional procedure is seen to be in the area of interest. Needle in target The number of localizing needles placed around the area of interest in an interventional procedure. Number of needles around target An indicator of whether or not an incision was made in the anatomy during an interventional procedure. Incision made true Retired - Replaced by (111123, DCM, "Marker placement") An indicator of whether or not a radio opaque microclip was placed in the anatomy during an interventional procedure. Microclip placed An indicator of the degree of success of an interventional procedure. Confirmation of target An indicator that during an interventional procedure the area of interest was fully excised and is noted in the resultant biopsy specimen. Target completely contained in the specimen An indicator that during an interventional procedure the area of interest was partially excised and is noted in the resultant biopsy specimen. Target partially obtained in the specimen An indicator that following an interventional procedure the area of interest is not seen in the resultant biopsy specimen. Target not in the specimen An indicator that following an interventional procedure the targeted calcifications are noted in the resultant biopsy specimen. Calcifications seen in the core An indicator that during an interventional procedure the area of interest was fully excised and is noted in the resultant biopsy specimen. Lesion completely removed An indicator that during an interventional procedure the area of interest was partially excised and is noted in the resultant biopsy specimen. Lesion partially removed An indicator that during an interventional procedure fluid was successfully aspirated. Fluid obtained Color that is a light shade of brown. Light brown color Color that is a dark shade of red. Dark red color Color that is a dark shade of brown. Dark brown color Color that is a bright shade of red. Bright red color Color that is tinged with the color of blood. Blood tinged color An indicator of whether or not the fluid obtained during an interventional procedure contains red blood cells. Occult blood test result An indicator of whether or not fluid during an interventional procedure was sent for cytological analysis or simply discarded. Action on fluid An indicator that fluid obtained during an interventional procedure was sent to a laboratory for analysis. Sent for analysis An indicator that fluid obtained during an interventional procedure was discarded. Discarded A radiopaque density noted during diagnostic imaging that has associated calcific densities. Mass with calcifications A fluid-filled sac with greater than normal characteristics. Complex cyst A tumor within a cyst. Intracystic lesion A tumor or lesion. Solid mass Supporting evidence for interpretation results of an interventional procedure. Supplementary Data for Intervention A descriptor that further qualifies or characterizes a type of procedure. Procedure Modifier Needle size (diameter) characterization. Of a biopsy needle. Needle Gauge An indicator of the gravity of a problem experienced by a patient, related to a procedure that was performed. Severity of Complication Distance from the hub or bushing to the tip of the needle. Needle Length The collection of observations and findings from pathologic analysis. Pathology Results The date and time that the sample was collected from the patient. Sampling DateTime Indicates that the margin of the biopsy specimen was not involved with the tumor. Uninvolved Indicates that the margin of the biopsy specimen was involved with the tumor. Involved Indicates whether the nipple was involved in an interventional procedure or pathologic analysis. Nipple involved Indicates the number of lymph nodes removed. Number of nodes removed Indicates the number of lymph nodes removed that contain cancer cells. Number of nodes positive The result of a test for the presence of a protein that binds with estrogen. Estrogen receptor The result of a test for the presence of a protein that binds with progesterone. Progesterone receptor Indicates the percentage of cells in S phase. Cell division is defined by phases; the S phase is the stage during which DNA replicates. S Phase The visible emission of non-bloody fluid from the nipple. Non-bloody discharge (from nipple) The inability to discern normal versus abnormal breast tissue during palpation. Difficult physical/clinical examination An indication that a patient has or had a malignant occurrence in an area of the body other than the breast. Cancer elsewhere A salt water filled prosthetic device implanted in the breast. Saline implant A polymer based (plastic) prosthetic device implanted in the breast. Polyurethane implant The introduction of polymeric organic silicon based material through the skin, as for breast augmentation or reconstruction. Percutaneous silicone injection A prosthetic device that contains more than one material implanted in the breast. Combination implant A breast implant placed in front of the pectoralis major muscle. Pre-pectoral implant A breast implant placed behind the pectoralis major muscle. Retro-pectoral implant Using X-Ray technique and a superimposed set of crossed lines for detection or placement. Mammographic (crosshair) Using X-Ray technique and a superimposed aperture for detection or placement. Mammographic (grid) Using physical touch for detection or placement. Palpation guided The performance of a biopsy procedure using a vacuum device attached to the biopsy needle. Vacuum assisted Unusual or unexpected emission of fluid. Abnormal discharge Having experienced no adverse medical conditions related to or resulting from an interventional procedure. No complications TNM grouping of tumor stage, from AJCC, where primary tumor is Tis, regional lymph node is N0, and distant metastasis is M0. Stage 0 TNM grouping of tumor stage, from AJCC, where primary tumor is T1, regional lymph node is N0, and distant metastasis is M0. Stage I TNM grouping of tumor stage, from AJCC, where primary tumor is T0 or T1, with regional lymph node N1 and distant metastasis is M0, or T2 with N0 and M0. Stage IIA TNM grouping of tumor stage, from AJCC, where primary tumor is T2, with regional lymph node N1 and distant metastasis is M0, or T3 with N0 and M0. Stage IIB TNM grouping of tumor stage, from AJCC, where primary tumor is T0, T1 or T2, with regional lymph node N2 and distant metastasis is M0, or T3 with N1 or N2 and M0. Stage IIIA TNM grouping of tumor stage, from AJCC, where primary tumor is T4, regional lymph node is N0, N1 or N2, and distant metastasis is M0. Stage IIIB TNM grouping of tumor stage, from AJCC, where primary tumor is any T value, regional lymph node is N3, and distant metastasis is M0. Stage IIIC TNM grouping of tumor stage, from AJCC, where primary tumor is any T value, regional lymph node is any N value, and distant metastasis is M1. Stage IV Histologic tumor grade (sometimes called Scarff-Bloom-Richardson grade) is based on the arrangement of the cells in relation to each other -- whether they form tubules, how closely they resemble normal breast cells (nuclear grade) and how many of the cancer cells are in the process of dividing (mitotic count). Bloom-Richardson Grade Breast prosthetic devices are intact, not leaking, and are in a normal shape and form. Normal implants Breast prosthetic devices are not symmetric, equal, corresponding in form, or are in one breast (unilateral). Asymmetric implants Fibrous or calcific contracture of the tissue capsule that forms around a breast prosthetic device. Calcified implant Breast prosthetic device is twisted out of normal shape or form. Distorted implant Silicone from breast prosthetic device found in lymphatic tissue. Silicone-laden lymph nodes Silicone found in breast tissue outside of the prosthetic capsule or implant membrane. Free silicone Protrusion of part of the structure normally encapsulating the content of the breast prosthetic device. Herniated implant Evidence of removal of a breast prosthetic device. Explantation Historical patient health information of interest to the breast health clinician. Relevant Patient Information for Breast Imaging true Retired - Replaced by (10160-0, LN, "History Of Medication Use") Information regarding usage by the patient of certain medications, such as hormones. Medication History Interventional or non-interventional procedures previously performed on the patient, such as breast biopsies. Relevant Previous Procedures true Retired - Replaced by (11450-4, LN, "Problem List") Abnormal conditions experienced by the patient that serve as the reason for performing a procedure, such as a physical breast examination. Relevant Indicated Problems Personal, familial, and other health factors that may indicate an increase in the patient's chances of developing a health condition or disease, such as breast cancer. Relevant Risk Factors A classification of a medicinal substance, such as hormonal contraceptive or antibiotic. Medication Type Historical patient health information for general purpose use. Relevant Patient Information The age of the patient at the first occurrence of menses. Age when first menstrual period occurred The age of the patient at the time of her first full term pregnancy. Age at First Full Term Pregnancy The age of the patient at the cessation of menses. Age at Menopause The age of the patient at the time her uterus was removed. Age when hysterectomy performed The age of the patient at the time she had her left ovary removed. Age when left ovary removed The age of the patient at the time she had her right ovary removed. Age when right ovary removed The age of a patient on the first occurrence of an event, such as the first use of a medication. Age Started The age of a patient on the last occurrence of an event, such as the last use of a medication. Age Ended The date and time of the first occurrence of an event, such as the first use of a medication. DateTime Started The date and time of the last occurrence of an event, such as the last use of a medication. DateTime Ended An indicator of whether an event is still in progress, such as the use of a medication or substance, or environmental exposure. Ongoing Product name of a device or substance, such as medication, to identify it as the product of a single firm or manufacturer. Brand Name A descriptor that further qualifies or characterizes a risk factor. Risk Factor modifier A prior non-interventional study or interventional procedure performed on a patient. Previous Procedure true Retired - Replaced by (364320009, SCT, "Pregnancy observable"). Describes the pregnancy state of a referenced subject. Pregnancy Status A symptom experienced by a patient that is used as the reason for performing a study or procedure. Indicated Problem The function of the individual who is reporting information on a patient, which could be a specific health care related profession, the patient him/herself, or a relative or friend. Role of person reporting The date and time that a symptom was noted. DateTime problem observed The date and time of the most recent evaluation of an indicated problem. DateTime of last evaluation A patient's biological relative who exhibits a health factor that may indicate an increase in the patient's chances of developing a particular disease or medical problem. Family Member with Risk Factor The age at which an individual experienced a specific event, such as breast cancer. Age at Occurrence The current stage of an individual in her gynecological development. Menopausal phase An indicator of paternal or maternal relationship. Side of Family Relating to biological female parentage. Maternal A gynecological hormone for which the specific type is not specified. Contraceptive, estrogen, Tamoxifen. Unspecified gynecological hormone An indicator of whether or not a patient ever provided breast milk to her offspring. Breast feeding history The average length of time that a patient provided breast milk to her offspring. Average breast feeding period Information regarding usage by the patient of certain legal or illicit substances. Substance Use History A classification of a substance, such as alcohol or a legal or illicit drug. Used Substance Type Information regarding exposure of the patient to potentially harmful environmental factors. Environmental Exposure History A classification of a potentially harmful substance or gas in a subject's environment, such as asbestos, lead, or carcinogens. Environmental Factor Previous Structured Reports that could have relevant information for a current imaging service request. Previous Reports An indication that a patient has had a previous malignancy of the breast. Personal breast cancer history Indicates a previous occurrence of cancer of the lining of the uterus. History of endometrial cancer Indicates a previous occurrence of cancer of the lining of the ovary. History of ovarian cancer Indicates a prior diagnosis of pre-cancerous cells or tissue removed for pathologic evaluation. History of high risk lesion on previous biopsy A female patient whose menstrual periods have ceased. Post menopausal patient A female patient whose first child was born after the patient was 30 years old. Late child bearing (after 30) The first level genetic marker indicating risk for breast cancer. BRCA1 breast cancer gene The second level genetic marker indicating risk for breast cancer. BRCA2 breast cancer gene The third level genetic marker indicating risk for breast cancer. BRCA3 breast cancer gene A patient's biological aunt, grandmother, or female cousin was diagnosed with breast cancer. Definition from BI-RADS®. Weak family history of breast cancer A patient's biological mother or sister was diagnosed with breast cancer after they had gone through menopause. Definition from BI-RADS®. Intermediate family history of breast cancer A patient's biological mother or sister was diagnosed with breast cancer before they had gone through menopause, or more than one of the patient's first-degree relatives (biological mother or sister) were diagnosed with breast cancer after they had gone through menopause. Definition from BI-RADS®. Very strong family history of breast cancer Previous diagnosis of a malignancy of the prostate gland in a biological relative. Family history of prostate cancer The health record of a patient's biological relatives is not known. Family history unknown The study of cells obtained from fluid emitted from the breast. Nipple discharge cytology A developmental abnormality resulting in an abnormal shape of the uterus. Uterine malformations A naturally occurring premature expulsion from the uterus of the products of conception - the embryo or a nonviable fetus. Spontaneous Abortion An ailment/abnormality or state of the female reproductive tract. Gynecologic condition A surgical operation performed on any portion of the female reproductive tract. Gynecologic surgery Prior pregnancy with a low birth weight baby or a fetus with Intrauterine Growth Restriction or Retardation. Previous LBW or IUGR birth History of at least one prior pregnancy with fetal anatomic abnormality(s). Previous fetal malformation/syndrome History of delivering a Rhesis Isoimmunization affected child(ren) or a child(ren) with another blood disorder. Previous RH negative or blood dyscrasia at birth History of at least one pregnancy that contained more than one fetus. Twins, triplets, etc. History of multiple fetuses At least one fetus of this pregnancy has an anatomic abnormality(s) that is known to exist, or a "marker" is present that suggests the abnormality(s) may be present. Current pregnancy, known or suspected malformations/syndromes Biological relatives have previously conceived a fetus with an anatomic abnormality(s). Family history, fetal malformation/syndrome A subjective descriptor for an elevated amount of exposure, use, or dosage, incurring high risk of adverse effects. High A subjective descriptor for a moderate amount of exposure, use, or dosage, incurring medium risk of adverse effects. Medium A subjective descriptor for a limited amount of exposure, use, or dosage, incurring low risk of adverse effects. Low A measurement of the rate of occurrence of which a patient takes a certain medication. Dose frequency The quantity per unit of time that a patient was or is being exposed to an environmental irritant. Rate of exposure The quantity per unit of time that a medication or substance was or is being used. Volume of use A qualitative descriptor for the amount of a medication that was or is being taken. Relative dose amount A qualitative descriptor for the amount of present or past exposure to an environmental irritant. Relative amount of exposure A qualitative descriptor for the amount of a medication or substance that was or is being used. Relative amount of use A qualitative descriptor for the frequency with which a medication was or is being taken. Relative dose frequency A qualitative descriptor for the frequency of present or past exposure to an environmental irritant. Relative frequency of exposure A qualitative descriptor for the frequency with which a medication or substance was or is being used. Relative frequency of use Patient is not known to have been exposed to or used the substance or medication. No known exposure Patient returns for additional images to improve the quality of the most recent study. Recall for technical reasons Patient returns for additional images to clarify findings from the most recent study. Recall for imaging findings Patient returns for additional images to clarify symptoms or signs reported by the patient or a healthcare professional at the time of the most recent study. Recall for patient symptoms/ clinical findings Number of births with low birth weight or intrauterine growth restriction. LBW or IUGR true Retired - Replaced by (445465004, SCT, "Green optical filter") Filter that transmits green light while blocking the other colors, typically centered at 510-540 nm Green filter true Retired - Replaced by (445279009, SCT, "Red optical filter") Filter that transmits red light while blocking the other colors, typically centered at 630-680 nm Red filter true Retired - Replaced by (445084008, SCT, "Blue optical filter") Filter that transmits blue while blocking the other colors, typically centered at 460-480 nm Blue filter true Retired - Replaced by (445340000, SCT, "Yellow-green optical filter") A filter of 560nm that is used for retinal imaging and can provide good contrast and good visibility of the retinal vasculature Yellow-green filter true Retired - Replaced by (422915004, SCT, "Blue-green optical filter") A filter of 490nm that is used for retinal imaging because of excessive scattering of some retinal structures at very short wavelengths Blue-green filter true Retired - Replaced by (445169002, SCT, "Infrared optical filter") Filter that transmits the infrared spectrum, which is light that lies outside of the visible spectrum, with wavelengths longer than those of red light, while blocking visible light Infrared filter true Retired - Replaced by (445391002, SCT, "Polarizing optical filter") A filter that reduces reflections from non-metallic surfaces such as glass or water by blocking light waves that are vibrating at selected angles to the filter. Polarizing filter No filter used. No filter Joslin NM-1 is a 45 degree field focused centrally between the temporal margin of optic disc and the center of the macula: Center the camera on the papillomacular bundle midway between the temporal margin of the optic disc and the center of the macula. The horizontal centerline of the image should pass directly through the center of the disc. Field 1 for Joslin 3 field Joslin NM-2 is a 45 degree field focused superior temporal to the optic disc: Center the camera laterally approximately one-half disc diameter temporal to the center of the macula. The lower edge of the field is tangent to a horizontal line passing through the upper edge of the optic disc. The image is taken temporal to the macula but includes more retinal nasal and superior to the macula than standard field 2. Field 2 for Joslin 3 field Joslin NM-3 is a 45 degree field focused nasal to the optic disc: This field is nasal to the optic disc and may include part of the optic disc. The horizontal centerline of the image should pass tangent to the lower edge of the optic disc. Field 3 for Joslin 3 field A broad or "soft" light supplied from a single source. Diffuse direct illumination A slit reflected light microscope, which has the ability to form an image of the back scattered light from the eye in a sagittal plane. Scheimpflug cameras are able to achieve a wide depth of focus by employing the "Sheimpflug principle" where the lens and image planes are not parallel with each other. Rotating Sheimplug cameras are able to generate three-dimensional images and calculate measurements of the anterior chamber of the eye. Scheimpflug Camera Lighting condition approximately 0.04 lux. Scotopic light Lighting condition approximately 4 lux. Mesopic light Lighting condition approximately 40 lux. Photopic light Acquisition preceded by intense light. Dynamic light Calculated from values of entrance exposure in air, the X-Ray beam quality (half-value layer), and compressed breast thickness, is the energy deposited per unit mass of glandular tissue averaged over all the glandular tissue in the breast. Average Glandular Dose The primary material in the anode of an X-Ray source. Anode Target Material The average thickness of the body part examined when compressed, if compression has been applied during X-Ray exposure. Compression Thickness Thickness of Aluminum required to reduce the X-Ray output at the patient entrance surface by a factor of two. Half Value Layer An anti-scatter device based on radiation absorbing strips above the detector. In the patient support. X-Ray Grid Exposure measurement in air at the reference point that does not include back scatter, according to MQCM 1999. Entrance Exposure at RP Average Glandular Dose to a single breast accumulated over multiple images. Accumulated Average Glandular Dose Value of the control variable used to parametrize the Automatic Exposure Control (AEC) closed loop. "Water Value". Patient Equivalent Thickness A processing algorithm used to reduce the effect of X-Ray scatter on image quality, similar to the use of a physical X-Ray anti-scatter grid. This does not include processing for removal of physical anti-scatter grid lines. Virtual grid A physical X-Ray anti-scatter grid that does not move during exposure. Fixed grid A physical X-Ray anti-scatter grid with radiation absorbing strips that are focused toward the focal spot, to eliminate grid cutoff. Focused grid A physical X-Ray anti-scatter grid that is designed to move during exposure, to eliminate the appearance of grid lines on the image. Reciprocating grid A physical X-Ray anti-scatter grid with radiation absorbing strips that are parallel to each other and that is used only with long source to image distances. Parallel grid A physical X-Ray anti-scatter grid with crossed radiation absorbing strips used for more complete cleanup of scatter radiation. Crossed grid No physical X-Ray anti-scatter grid was used due to low scatter conditions. No grid The compression force applied to the body part during exposure. Compression Force The average compression pressure applied to the body part during exposure. Compression Pressure The area of the body part to which compression has been applied during exposure. Compression Contact Area The spectacle prescription for a patient. Spectacle Prescription Report Refractive measurements of the eye to correct for inability to focus at near while wearing the distance prescription. Add Near Refractive measurements of the eye to correct for inability to focus at intermediate distance while wearing the distance prescription. Add Intermediate Refractive measurements of the eye to correct for inability to focus at the specified distance while wearing the distance prescription. Add Other The power of a prism to bend light in the horizontal direction, in prism diopters. Horizontal Prism Power Direction of the base of a horizontal prism -- either in (toward the nose), or out (away from the nose). Horizontal Prism Base The power of a prism to bend light in the vertical direction, in prism diopters. Vertical Prism Power Direction of the base of a vertical prism -- either up, or down. Vertical Prism Base Distance in mm between the pupils when the patient's object of regard is in the distance. Distance Pupillary Distance Distance in mm between the pupils when the patient's object of regard is at near. Near Pupillary Distance Small Incision Lenticule Extraction. Refractive surgery procedure where a thin lenticule is cleaved from the corneal stroma using a femtosecond laser and then extracted through a small incision in the corneal periphery. SMILE A patient's vision with the correction measured by an autorefractor in place. Autorefraction Visual Acuity A patient's vision with whichever vision correction the patient customarily wears. Habitual Visual Acuity A patient's vision with the final spectacle prescription in place. Prescription Visual Acuity The spectacle prescription for the right eye. Right Eye Rx The spectacle prescription for the left eye. Left Eye Rx A macular grid thickness and volume report for a patient. The macular grid is an analytic tool described in . Macular Grid Thickness and Volume Report Number of images used for the macular grid measurement. Number of Images Used for Macular Measurements Number of samples used per Image for analysis. Number of Samples Used per Image A numeric rating of the quality of the entire analysis with respect to grading and diagnostic purposes.Higher numbers indicate greater quality. Analysis Quality Rating A numeric rating of the quality of an entire image set with respect to grading and diagnostic purposes.Higher numbers indicate greater quality. Image Set Quality Rating Tear film or drops affecting test quality. Interfering Tears or Drops The assessment of the centricity and persistence of the visual fixation (direction of gaze) during the acquisition. Visual Fixation Quality During Acquisition The reason why the patient's visual fixation was not steady or was indeterminate. Visual Fixation Quality Problem The reason why the macular grid measurements may be questionable. Ophthalmic Macular Grid Problem Identifier of container (box, block, microscope slide, etc.) for the specimen under observation. Specimen Container Identifier Type of processing that tissue specimen underwent. Processing type Date and time of processing step. DateTime of processing Description of the individual step in the tissue processing sequence. Processing step description Method of sampling used to derive specimen from its parent. Sampling Method Identifier of the parent specimen that gave rise to the current specimen. Parent Specimen Identifier Assigning authority for parent specimen's identifier. Issuer of Parent Specimen Identifier Parent specimen type that gave rise to current specimen. Parent specimen type Description of coordinate system and origin reference point on parent specimen, or parent specimen container, or image used for localizing the sampling site or location within container or image. Position Frame of Reference Reference to image of parent specimen localizing the sampling site; may include referenced Presentation State object. Location of sampling site Location of sampling site of specimen (nominal center) relative to the Position Frame of Reference. Location of sampling site X offset Location of sampling site of specimen (nominal center) relative to the Position Frame of Reference. Location of sampling site Y offset Location of sampling site of specimen (nominal center) relative to the Position Frame of Reference. Location of sampling site Z offset Description of specimen location, either in absolute terms or relative to the Position Frame of Reference. Location of Specimen Location of specimen (nominal center) relative to the Position Frame of Reference in the X dimension. Location of Specimen X offset Location of specimen (nominal center) relative to the Position Frame of Reference in the Y dimension. Location of Specimen Y offset Location of specimen (nominal center) relative to the Position Frame of Reference in the Z dimension. Location of Specimen Z offset Description of visual distinguishing identifiers. Ink, or a particular shape of the specimen. Visual Marking of Specimen Assigning authority for specimen identifier. Issuer of Specimen Identifier Dissection of specimen with submission of all its sections for further processing or examination. Dissection with entire specimen submission Dissection of specimen with submission of representative sections for further processing or examination. Dissection with representative sections submission A workflow step, during which tissue specimens are stored in a climate-controlled environment. Specimen storage Transmission illumination method for specimen microscopy. Transmission illumination Reflection illumination method for specimen microscopy. Reflection illumination Epifluorescence illumination method for specimen microscopy. Epifluorescence illumination Brightfield illumination method for specimen microscopy. Brightfield illumination Darkfield illumination method for specimen microscopy. Darkfield illumination Oblique illumination method for specimen microscopy. Oblique illumination Phase contrast illumination method for specimen microscopy. Phase contrast illumination Differential interference contrast method for specimen microscopy. Differential interference contrast Total internal reflection fluorescence method for specimen microscopy. Total internal reflection fluorescence A method of obtaining ophthalmic axial measurements that uses ultrasound, and that requires applanation of the cornea. Ultrasound Contact A method of obtaining ophthalmic axial measurements that uses ultrasound, and that requires immersion of the patient's eye in fluid as he lies in a supine position. Ultrasound Immersion A method of obtaining ophthalmic axial measurements that uses light. Optical Measurements taken of the corneal curvature using a manual keratometer. Manual Keratometry Measurements taken of the corneal curvature using an automated keratometer. Auto Keratometry Simulated Keratometry measurements derived from corneal topography. Simulated Keratometry Corneal power measurements using Scheimpflug camera. Equivalent K-reading Keratometry Measurements DICOM SOP Instance. Keratometry Measurements SOP Instance Method of determining the total cornea power from measuring the curvature of both anterior and posterior surface of the cornea. Total Cornea Power Measurement Method Method of measuring the curvature of posterior surface of the cornea and determining its refractive power. Posterior Cornea Surface Measurement Method The Haigis IOL calculation formula.Haigis W, Lege B, Miller N, Schneider B. Comparison of immersion ultrasound biometry and partial coherence interferometry for intraocular lens calculation according to Haigis. Graefes Arch Clin Exp Ophthalmol 2000;238:765-73. Haigis The Haigis-L IOL calculation formula.Haigis W. Intraocular lens calculation after refractive surgery for myopia: Haigis-L formula. J Cataract Refract Surg. 2008 Oct;34(10):1658-63. Haigis-L The Holladay 1 IOL calculation formula.Holladay JT, Prager TC, Chandler TY, Musgrove KH, Lewis JW, Ruiz RS. A three-part system for refining intraocular lens power calculations. J Cataract Refract Surg. 1988; 14:17-24. Holladay 1 The Holladay 2 IOL calculation formula. Holladay 2 The Hoffer Q IOL calculation formula. Hoffer KJ. The Hoffer Q formula: a comparison of theoretic and regression formulas. J Cataract Refract Surg 1993;19:700-12. Errata. J Cataract Refract Surg 1994;20:677 and 2007;33:2-3. Hoffer Q The Olsen IOL calculation formula. Olsen T. Calculation of intraocular lens power: a review. Acta Ophthalmol. Scand. 2007: 85: 472-485. Olsen The SRKII IOL calculation formula. Sanders DR, Retzlaff J, Kraff MC. Comparison of the SRK II formula and other second generation formulas. J Cataract Refract Surg. 1988 Mar;14(2):136-41. SRKII The SRK-T IOL calculation formula.Retzlaff JA, Sanders DR, Kraff MC. Development of the SRK/T intraocular lens implant power calculation formula. J Cataract Refract Surg 1990;16:333-40. Erratum 1990;16:528. SRK-T The "ACD Constant" used in IOL calculation. ACD Constant The "Haigis a0" constant used in IOL calculation. Haigis a0 The "Haigis a1" constant used in IOL calculation. Haigis a1 The "Haigis a2" constant used in IOL calculation. Haigis a2 The "Hoffer pACD Constant" used in IOL calculation. Hoffer pACD Constant The "Surgeon Factor" constant used in IOL calculation. Surgeon Factor Anterior chamber depth defined as the front of the cornea to the front of the lens. Front Of Cornea To Front Of Lens Anterior chamber depth defined as the back of the cornea to the front of the lens. Back Of Cornea To Front Of Lens Refers to the anterior lens when there are two lenses in the eye. The distance, in mm, from the anterior surface of the lens to the posterior surface of the lens. Single or Anterior Lens Refers to the posterior lens when there are two lenses in the eye. The distance, in mm, from the anterior surface of the lens to the posterior surface of the lens. Posterior Lens Value obtained from measurements taken by the device creating this SOP Instance. Measurement From This Device Value obtained by data transfer from an external source - not from measurements taken by the device providing the value. External Data Source Axial Measurements DICOM SOP Instance. Axial Measurements SOP Instance Refractive Measurements DICOM SOP Instance. Refractive Measurements SOP Instance Autorefraction Measurements DICOM SOP Instance. Autorefraction Measurements SOP Instance Standard Deviation is a simple measure of the variability of data. Standard Deviation of measurements used Signal to Noise Ratio of the data samples taken to create a measurement. Signal to Noise Ratio Projection from 2D image pixels to 3D Cartesian coordinates based on a spherical mathematical model. Spherical projection Mapping from 2D image pixels to 3D Cartesian coordinates based on measurements of the retinal surface. Of the retina, derived via a measurement technology such as Optical Coherence Tomography, Ultrasound etc. Surface contour mapping Test pattern, nominally covering an area within 24° of fixation. Consists of 54 test points a minimum of 3° from each meridian and placed 6° apart.The "-2" distinguishes this from another 24° pattern (no longer supported). Visual Field 24-2 Test Pattern Test pattern, nominally covering an area within 10° of fixation. Consists of 68 test points a minimum of 1° from each meridian and placed 2° apart.The "-2" in this case indicates its point layout to be similar to the 30-2 and 24-2. Visual Field 10-2 Test Pattern Test pattern consisting of test point locations within 30° of fixation. Consists of 76 test points a minimum of 3° from each meridian and placed 6° apart.The "-2" distinguishes this from another 30° pattern (no longer supported). Visual Field 30-2 Test Pattern Test pattern consisting of 60 test point locations between 30° and 60° of fixation a minimum of 6° from each meridian and placed 12° apart.The "-4" distinguishes this from a similar 60° pattern having 4 additional points. Visual Field 60-4 Test Pattern Test pattern consisting of 16 test point locations within 10° of fixation a minimum of 1° from each meridian and placed 2° apart. Visual Field Macula Test Pattern Test pattern consisting of 40 test point locations within 30° of fixation that spread out radially from fixation. Visual Field Central 40 Point Test Pattern Test pattern consisting of 76 test point locations within 30° of fixation a minimum of 3° from each meridian and placed 6° apart. Visual Field Central 76 Point Test Pattern Test pattern consisting of 60 test point locations between 30° and 60° of fixation a minimum of 6° from each meridian and placed 12° apart. Visual Field Peripheral 60 Point Test Pattern Test pattern consisting of 81 test point locations within 60° of fixation that spread out radially from fixation. Visual Field Full Field 81 Point Test Pattern Test pattern consisting of 120 test point locations within 60° of fixation that spread out radially from fixation, concentrated in the nasal hemisphere. Visual Field Full Field 120 Point Test Pattern Test pattern for Glaucoma and general visual field assessment with 59 test locations of which 16 test locations are in the macular area (up to 10° eccentricity) and where the density of test location is reduced with eccentricity. The test can be extended with the inclusion of 14 test locations between 30° and 60° eccentricity, 6 of which are located at the nasal step. Visual Field G Test Pattern Test pattern for the macular area. Orthogonal test pattern with 0.7° spacing within the central 4° of eccentricity and reduced density of test locations between 4 and 10, 5° of eccentricity. 81 test locations over all. The test can be extended to include the test locations of the Visual Field G Test Pattern between 10, 5° and 60°. Visual Field M Test Pattern Full field test pattern with 48 test locations from 0-30° and 82 test locations from 30-70°. Reduced test point density with increased eccentricity. Can be combined with screening and threshold strategies. Visual Field 07 Test Pattern Low Vision Central. Orthogonal off-center test pattern with 6° spacing. 75 test locations within the central 30°. Corresponds with the 32/30-2 excluding the 2 locations at the blind spot, including a macular test location. The LVC is linked with a staircase threshold strategy starting at 0 dB intensity and applies stimulus area V. Visual Field LVC Test Pattern General test corresponding to the 30-2 but excluding the 2 test locations in the blind spot area, hence with 74 instead of 76 test locations. Visual Field Central Test Pattern Swedish Interactive Thresholding Algorithm (SITA). Strategy gains testing efficiency through use of visual field and information theory models.In: Bengtsson B, Olsson J, Heijl A, Rootzen H. A new generation of algorithms for computerized threshold perimetry, SITA. Acta Ophthalmologica Scandinavica, 1997, 75: 368-375. Visual Field SITA-Standard Test Strategy Adaptation of SITA testing methods to Blue-Yellow testing. Visual Field SITA-SWAP Test Strategy Similar to SITA-Standard but with less strict criteria for closing test points. Intended for patients who must be tested in the shortest possible time.In: Bengtsson B, Hejl A. SITA Fast, a new rapid perimetric threshold test. Description of methods and evaluation in patients with manifest and suspect glaucoma. Acta Ophthalmologica Scandinavica, 1998, 76: 431-437. Visual Field SITA-Fast Test Strategy Threshold test algorithm that determines a patient's sensitivity at each test point in the threshold test pattern by adjusting intensity by 4 dB steps until the patient changes their response, and then adjusts the intensity in the opposite direction by 2 dB steps until the patient changes their response again. The last stimulus seen by the patient is recognized as the threshold for that point.The starting values are determined by first thresholding a "primary" point in each quadrant then using the results of each primary point to determine the starting values for neighboring points. Visual Field Full Threshold Test Strategy Similar to the Full Threshold algorithm except that it steps by 3 dB and only crosses the threshold only once.In: Flanagan JG, Wild JM, Trope GE. Evaluation of FASTPAC, a new strategy for threshold estimation with the Humphrey Field Analyzer, in a glaucomatous population. Ophthalmology, 1993, 100: 949-954. Visual Field FastPac Test Strategy Identical to Full Threshold except that starting values are determined by the results of a previous test performed using the same test pattern and the Full Threshold test strategy. Visual Field Full From Prior Test Strategy Similar to FastPac except that the steps are pseudo-dynamic (differ based on the intensity of the last presentation). Visual Field Optima Test Strategy Suprathreshold testing strategy, in which each point is initially tested using stimulus that is 6 dB brighter than the expected hill of vision. If the patient does not respond, the stimulus is presented a second time at the same brightness. If the patient sees either presentation, the point is marked as "seen"; otherwise it is marked as "not seen". Visual Field Two-Zone Test Strategy An extension of the two-zone strategy in which test points where the second stimulus is not seen are presented with a third stimulus at maximum brightness. Visual Field Three-Zone Test Strategy An extension of the two-zone strategy, in which test points where the second stimulus is not seen receive threshold testing to quantify the depth of any detected scotomas. Visual Field Quantify-Defects Test Strategy Tendency Oriented Perimetry. Fast thresholding algorithm. Test strategy makes use of the interaction between neighboring test locations to reduce the test time compared to normal full threshold strategy by 60-80%.In: Morales J, Weitzman ML, Gonzalez de la Rosa M. Comparison between Tendency-Oriented Perimetry (TOP) and octopus threshold perimetry. Ophthalmology, 2000, 107: 134-142. Visual Field TOP Test Strategy Dynamic strategy is a fast thresholding strategy reducing test duration by adapting the dB step sizes according to the frequency-of-seeing curve of the threshold. Reduction of test time compared to normal full threshold strategy 30-50%. Visual Field Dynamic Test Strategy Traditional full threshold staircase strategy. Initial intensities are presented, based on anchor point sensitivities in each quadrant and based on already known neighboring sensitivities. In a first run, thresholds are changed in 4dB steps until the first response reversal. Then the threshold is changed in 2 dB steps until the second response reversal. The threshold is calculated as the average between the last seen and last not-seen stimulus, supposed to correspond with the 50% point in the frequency-of-seeing curve. Visual Field Normal Test Strategy One level screening test: Each test location is tested with a single intensity. The result is shown as seen or not-seen. The intensity can either be a 0 dB stimulus or a predefined intensity. Visual Field 1-LT Test Strategy Two level screening test: Each test location is initially tested 6 dB brighter than the age corrected normal value. Visual Field 2-LT Test Strategy Low Vision Strategy is a full threshold normal strategy with the exception that it starts at 0 dB intensity and applies stimulus area V. Visual Field LVS Test Strategy German Adaptive Threshold Estimation is a fast strategy based on a modified 4-2 staircase algorithm, using prior visual fields to calculate the starting intensity. In: Chiefer U, Pascual JP, Edmunds B, Feudner E, Hoffmann EM, Johnson CA, Lagreze WA, Pfeiffer N, Sample PA, Staubach F, Weleber RG, Vonthein R, Krapp E, Paetzold J. Comparison of the new perimetric GATE strategy with conventional full-threshold and SITA standard strategies. Investigative Ophthalmology and Visual Science, 2009, 51: 488-494. Visual Field GATE Test Strategy Similar to GATE. The i stands for initial. If there was no prior visual field test to calculate the starting values, an anchor point method is used to define the local start values. Visual Field GATEi Test Strategy A test started as two level screening test. In the course of the test, the threshold of relative defects and/or normal test locations has been quantified using the dynamic threshold strategy. Visual Field 2LT-Dynamic Test Strategy A test started as two level screening test. In the course of the test, the threshold of relative defects and/or normal test locations has been quantified using the normal full threshold strategy. Visual Field 2LT-Normal Test Strategy Takes neighborhood test point results into account and offers stimuli with an adapted value to save time. Visual Field Fast Threshold Test Strategy Continuous Luminance Incremental Perimetry, which measures at first the individual reaction time of the patient and threshold values in every quadrant. The starting value for the main test is slightly below in individual threshold. Visual Field CLIP Test Strategy A supra threshold screening strategy. The starting stimuli intensities depend on the classification of the patient's visual hill by measuring the central (fovea) or peripheral (15° meridian) threshold. The result of each dot slightly underestimates the sensitivity value (within 5 dB). Visual Field CLASS Strategy Mode for determining the starting luminance for screening test points - the starting luminance s is chosen based on the age of the patient. Age corrected Mode for determining the starting luminance for screening test points - the starting luminance is chosen based on the results of thresholding a set of "primary" test points (one in each quadrant). Threshold related Mode for determining the starting luminance for screening test points - in this case, all starting luminance is set to the same value. Single luminance Mode for determining the starting luminance for screening test points - the starting luminance is chosen based on the result of the foveal threshold value. Foveal sensitivity related Mode for determining the starting luminance for screening test points - the starting luminance is chosen based on the result of four threshold values measured near the 15° meridian (one in each quadrant). Related to non macular sensitivity Real time evaluation of the camera image to recognize blinks and fixation losses with influence on the test procedure. Blinks that interfere with stimuli presentation cause the automated repetition of such stimulus presentations. Fixation losses can be used to delay the stimulus presentation until correct fixation is regained. Automated Optical A method of monitoring the patient's fixation by periodically presenting stimulus in a location on the background surface that corresponds to the patient's blind spot. Blind Spot Monitoring A method of monitoring the patient's fixation by presenting the stimulus to the patient's macula. Macular Fixation Testing A method of monitoring the patient's fixation by observation from the examiner of the patient. Observation by Examiner Analysis Results are outside normal limits. Outside normal limits Analysis Results are borderline. Borderline Analysis Results identify abnormally high sensitivity. Abnormally high sensitivity Analysis Results identify general reduction in sensitivity. General reduction in sensitivity Analysis Results identify Borderline and general reduction in sensitivity. Borderline and general reduction in sensitivity Index of a patient's remaining visual field normalized for both age and generalized defect. Visual Field Index Estimate of the portion of a patient's visual field loss that is diffuse (i.e., spread evenly across all portions of the visual field). Visual Field Loss Due to Diffuse Defect Estimate of the portion of a patient's visual field loss that is local (i.e., not spread evenly across all portions of the visual field). Visual Field Loss Due to Local Defect An analysis of asymmetry between zones of the superior and inferior visual field. It is designed to be specific for defects due to glaucoma. Glaucoma Hemifield Test Analysis The data output of an optical fixation monitoring process, consisting of a list of positive and negative numbers indicating the quality of patient fixation over the course of a visual field test. The value 0 represents the initial fixation. Negative numbers indicate a measuring error (i.e., the patient blinked). Positive numbers quantify the degree of eccentricity from initial fixation. Optical Fixation Measurements The Haigis Toric IOL calculation formula.Haigis, Wolfgang. Toric Iol Power Calculation. 2014. Haigis Toric The Haigis-L Toric IOL calculation formula.Haigis W, Intraocular lens calculation after refractive surgery for myopia: Haigis-L formula. J Cataract Refract Surg, 2008. 34(10): 1658-63. doi:10.1016/j.jcrs.2008.06.029. Haigis-L Toric The Barrett Toric IOL calculation formula.Abulafia, A., et al., Prediction of refractive outcomes with toric intraocular lens implantation. J Cataract Refract Surg, 2015. 41(5): p. 936-44. doi:10.1016/j.jcrs.2014.08.036. Barrett Toric The Barrett True-K IOL calculation formula.Abulafia, A., et al., Accuracy of the Barrett True-K formula for intraocular lens power prediction after laser in situ keratomileusis or photorefractive keratectomy for myopia. J Cataract Refract Surg, 2016. 42(3): p. 363-9. doi:10.1016/j.jcrs.2015.11.039. Barrett True-K The Barrett True-K Toric IOL calculation formula.Barrett G.D., Barrett True-K toric calculator. Barrett True-K Toric The Barrett Universal II IOL calculation formula.Barrett, G.D., An improved universal theoretical formula for intraocular lens power prediction. J Cataract Refract Surg, 1993. 19: p. 713-720. doi:10.1016/S0886-3350(13)80339-2 Barrett Universal II The "Barrett Lens Factor" constant used in IOL calculation. Barrett Lens Factor The "Barrett Design Factor" constant used in IOL calculation. Barrett Design Factor The Kane intraocular lens calculation formula.Connell BJ, Kane JX. Comparison of the Kane formula with existing formulas for intraocular lens power selection. BMJ Open Ophthalmol. 2019 Apr 1;4(1):e000251. doi:10.1136/bmjophth-2018-000251. PMID: 31179396; PMCID: PMC6528763. Kane The Kane Toric intraocular lens calculation formula.Kane JX, Connell B. A Comparison of the Accuracy of 6 Modern Toric Intraocular Lens Formulas. Ophthalmology. 2020 Nov;127(11):1472-1486. doi:10.1016/j.ophtha.2020.04.039. Epub 2020 May 1. PMID: 32371252. Kane Toric The Kane Keratoconus intraocular lens calculation formula.Kane JX, Connell B, Yip H, McAlister JC, Beckingsale P, Snibson GR, Chan E. Accuracy of Intraocular Lens Power Formulas Modified for Patients with Keratoconus. Ophthalmology. 2020 Aug;127(8):1037-1042. doi:10.1016/j.ophtha.2020.02.008. Epub 2020 Apr 9. PMID: 32279887. Kane Keratoconus The Barrett Keratoconus intraocular lens calculation formula.Ton, Yokrat MD; Barrett, Graham D. MD, FRANZCO; Kleinmann, Guy MD; Levy, Adi MHA; Assia, Ehud I. MD. Toric intraocular lens power calculation in cataract patients with keratoconus. Journal of Cataract & Refractive Surgery 47(11):p 1389-1397, November 2021. doi:10.1097/j.jcrs.0000000000000638. Barrett Keratoconus The Barrett Rx intraocular lens calculation formula.Barrett GD. The Barrett Rx formula: predicting IOL power based on refraction after cataract surgery. Barcelona. Spain: European Society of Cataract & Refractive Surgeons; 2015. Barrett Rx The Emmetropia Verifying Optical (EVO) intraocular lens calculation formula.Yeo, T.K. (2024). Emmetropia Verifying Optical (EVO) Formula. In: Aramberri, J., Hoffer, K.J., Olsen, T., Savini, G., Shammas, H.J. (eds) Intraocular Lens Calculations. Essentials in Ophthalmology. Springer, Cham. doi:10.1007/978-3-031-50666-6_40. EVO The Shammas no-history method using Shammas-PL IOL calculation formula.Shammas HJ, Shammas MC. No-history method of intraocular lens power calculation for cataract surgery after myopic laser in situ keratomileusis. J Cataract Refract Surg. 2007 Jan;33(1):31-6. doi:10.1016/j.jcrs.2006.08.045. PMID: 17189790. Shammas No-History The Camellin and Calossi IOL calculation formula.Camellin M, Calossi A. A new formula for intraocular lens power calculation after refractive corneal surgery. J Refract Surg. 2006 Feb;22(2):187-99. doi:10.3928/1081-597X-20060201-18. PMID: 16523839. Camellin-Calossi The Hill Radial Basis Function (RBF) Formula Version 3.0.Hill Radial Basis Function calculator . Hill RBF 3.0 The PEARL-DGS IOL calculation formula.Debellemanie`re G, Dubois M, Gauvin M, Wallerstein A, Brenner L, Rampat R, Saad A, Gatinel D. The PEARL-DGS formula: the development of an open-source machine learning-based thick IOL calculation formula. Am J Ophthalmol. 2021;232:58–69. doi:10.1016/j.ajo.2021.05.004. PEARL-DGS An image of at least 15° angular subtend that is centered on the macula. Macula centered An image of at least 15° angular subtend that is centered on the optic disc. Disc centered An image of any angular subtend that is centered on a lesion located in any region of the fundus. Lesion centered An image of at least 15° angular subtend centered midway between the disc and macula and containing at least a portion of the disc and both the disc and the macula. Disc-macula centered An image of at least 15° angular subtend positioned between the central zone and the equator, and spanning both the superior-temporal and superior-nasal quadrants of the fundus. Mid-peripheral-superior An image of at least 15° angular subtend positioned between the central zone and the equator in the superior-temporal quadrant of the fundus. Mid-peripheral-superior temporal An image of at least 15° angular subtend positioned between the central zone and the equator, and spanning both the superior-temporal and inferior-temporal quadrants of the fundus. Mid-peripheral-temporal An image of at least 15° angular subtend positioned between the central zone and the equator in the inferior-temporal quadrant of the fundus. Mid-peripheral-inferior temporal An image of at least 15° angular subtend positioned between the central zone and the equator, and spanning both the inferior-temporal and inferior-nasal quadrants of the fundus. Mid-peripheral-inferior An image of at least 15° angular subtend positioned between the central zone and the equator in the inferior-nasal quadrant of the fundus. Mid-peripheral-inferior nasal An image of at least 15° angular subtend positioned between the central zone and the equator, and spanning both the superior-nasal and inferior-nasal quadrants of the fundus. Mid-peripheral-nasal An image of at least 15° angular subtend positioned between the central zone and the equator in the superior-nasal quadrant of the fundus. Mid-peripheral-superior nasal An image of at least 15° angular subtend positioned between the equator and the ora serrata, and spanning both the superior temporal and superior nasal quadrants of the fundus. Peripheral-superior An image of at least 15° angular subtend positioned between the equator and ora serrata in the superior-temporal quadrant of the fundus. Peripheral-superior temporal An image of at least 15° angular subtend positioned between the equator and ora serrata, and spanning both the superior-temporal and inferior-temporal quadrants of the fundus. Peripheral-temporal An image of at least 15° angular subtend positioned between the equator and ora serrata in the inferior-temporal quadrant of the fundus. Peripheral-inferior temporal An image of at least 15° angular subtend positioned between the equator and ora serrata, and spanning both the inferior-temporal and inferior-nasal quadrants of the fundus. Peripheral-inferior An image of at least 15° angular subtend positioned between the equator and ora serrata in the inferior-nasal quadrant of the fundus. Peripheral-inferior nasal An image of at least 15° angular subtend positioned between the equator and ora serrata, and spanning both the superior-nasal and inferior-nasal quadrants of the fundus. Peripheral-nasal An image of at least 15° angular subtend positioned between the equator and ora serrata in the superior-nasal quadrant of the fundus. Peripheral-superior nasal Identifies the use of physical signals with respect to time to capture information. Time domain Identifies the use of physical signals with respect to multiple frequencies to capture information. Spectral domain No compensation algorithm for corneal birefringence. No corneal compensation Algorithm to compensate for variability in corneal birefringence. Corneal birefringence compensation Measurement of the retinal surface contour relative to an assigned datum plane. Retinal topography Measurement approximating the distance related to the structure between the internal limiting membrane (ILM) and the outer boarder of the retinal nerve fiber layer (RNFL). Retinal nerve fiber layer thickness Measurement approximating the distance related to the structure between the ILM and the outer border of the inner plexiform layer (IPL), called the ganglion cell complex (GCC). Ganglion cell complex thickness Measurement approximating the distance related to the structure between the ILM and the inner-outer segment junction (IS-OS). Total retinal thickness (ILM to IS-OS) Measurement approximating the distance related to the structure between the ILM and the retinal pigment epithelium (RPE). Total retinal thickness (ILM to RPE) Measurement approximating the distance related to the structure between the ILM and the Bruch's membrane (BM). Total retinal thickness (ILM to BM) Thickness of a component of the posterior segment of the eye. Thickness of retina, choroid, etc. Absolute ophthalmic thickness Ophthalmic Thickness map based upon statistical significance category (such as percentile) from normative data. Thickness deviation category from normative data Ophthalmic Thickness map based upon deviation (such as microns) from normative data. Thickness deviation from normative data Ophthalmic Thickness Map related to another Ophthalmic Thickness Map or another SOP Instance. Related ophthalmic thickness map An anatomic point centered midway between the disc and fovea centralis. Disc-Fovea Assuming the null hypothesis is true, the conditional percent probability of observing this result is not statistically significant. p>5% Assuming the null hypothesis is true, the conditional percent probability of observing this result is statistically significant, 95% unlikely to happen by chance. p<5% Assuming the null hypothesis is true, the conditional percent probability of observing this result is statistically significant, 98% unlikely to happen by chance. p<2% Assuming the null hypothesis is true, the conditional percent probability of observing this result is statistically significant, 99% unlikely to happen by chance. p<1% Assuming the null hypothesis is true, the conditional percent probability of observing this result is statistically significant, 99.5% unlikely to happen by chance. p<0.5% A two dimensional representation of the axial curvature of the cornea. Axial curvature is calculated from the reciprocal of the distance from a point on a meridian normal at the point to the corneal topographer axis. Also known as sagittal curvature. Corneal axial power map A two dimensional representation of the instantaneous curvature of the cornea. Instantaneous curvature is calculated from the reciprocal of the distance from a point on a meridian normal at the point to the center of curvature of that point. Also called tangential curvature. Corneal instantaneous power map A two dimensional representation of the refractive power of the cornea. Corneal refractive power is calculated using Snell's Law. Corneal refractive power map A two dimensional representation of the elevation of the cornea. Elevation is calculated as the distance from a point on the corneal surface to a point on a reference surface along a line parallel to the corneal topographer axis. For the purpose of visualization the reference surface is usually a sphere or an ellipse. Corneal elevation map A two dimensional representation of a wavefront aberration surface of the cornea. Wavefront aberration surface is calculated from the corneal elevation data fit with either the Zernike polynomial series or the Fourier Series. Maps generally display total aberrations and selectable higher order aberrations. Corneal wavefront map A device that measures corneal anterior surface shape using elevation-based methods (stereographic and light slit-based). Rasterstereography images a grid pattern illuminating the fluorescein dyed tear film with 2 cameras to produce 3D. Slit-based devices scan the cornea, usually by rotation about the instrument axis centered on the cornea vertex. Elevation-based corneal tomographer A reflection-based device that projects a pattern of light onto the cornea and an image of the reflection of that pattern from the tear film is recorded in one video frame. Light patterns include the circular mire pattern (Placido disc) and spot matrix patterns. Sequential scanning of light spots reflected from the corneal surface is also used requiring multiple video frames for recording. Reflection-based corneal topographer An Interference-based device that projects a beam of light onto and through the cornea. Light reflected from within the cornea is combined with a reference beam giving rise to an interference pattern. Appropriately scanned, this imaging is used to construct 3-dimensional images of the cornea from anterior to posterior surfaces. Swept source OCT. Interferometry-based corneal tomographer A structured report containing the results of computer-aided detection or diagnosis applied to chest imaging and associated clinical information. Chest CAD Report The shadow of an absorber that attenuates the X-Ray beam more effectively than do surrounding absorbers. In a radiograph, any circumscribed area that appears more nearly white (of lesser photometric density) than its surround [Fraser and Pare]. Opacity A unique identifier for a series of DICOM SOP instances. Series Instance UID A named anatomic region within the chest cavity. Associated Chest Component A collection of opacities detected within the continuum of loose connective tissue throughout the lung, that is not expected in a diagnostically normal radiograph. Abnormal interstitial pattern A type of anatomy that is expected to be detectable on a radiographic (X-Ray based) image. Radiographic anatomy Characteristic of the extent of spreading of a finding or feature. Distribution Descriptor Characteristic of the clarity of the boundary or edges of a finding or feature. Border definition The part(s) of the anatomy affected or encompassed by a finding or feature. Site involvement Characteristic of the matter or substance within a finding or feature. Type of Content Characteristic of the surface or consistency of a finding or feature. Texture Descriptor Position of the X-Ray beam about the patient from the RAO to LAO direction where movement from RAO to vertical is positive. Positioner Primary Angle Position of the X-Ray beam about the patient from the caudal to cranial direction where movement from caudal to vertical is positive. Positioner Secondary Angle The zone, lobe or segment within the chest cavity in which a finding or feature is situated. Location in Chest Vertical refers to orientation parallel to the superior-inferior (cephalad-caudad) axis of the body, with horizontal being perpendicular to this, and an oblique orientation having projections in both the horizontal and vertical. Orientation Descriptor Characteristic of the shape formed by the boundary or edges of a finding or feature. Border shape Indicates whether a finding was considered a target lesion, non-target lesion, or non-lesion during evaluation of a baseline series, according to a method such as RECIST. Baseline Category The extent of a detected cavity, represented as the percent of the surrounding volume that it occupies. Cavity extent as percent of volume The extent of a detected calcification, represented as the percent of the surrounding surface that it occupies. Calcification extent as percent of surface The extent of a detected calcification, represented as the percent of the surrounding volume that it occupies. Calcification extent as percent of volume A heading for the reporting of response evaluation for treatment of solid tumors. Response Evaluation The system applied in the reporting of response evaluation for treatment of solid tumors. Response Evaluation Method Response Evaluation Criteria In Solid Tumors. RECIST A term that further specifies the name of an item that is an inferred correlation relating two or more individual findings or features. Composite Feature Modifier A term that further specifies the name of an item that was detected on one image. Single Image Finding Modifier A qualitative descriptor for the extent of a finding or feature. Size Descriptor A qualitative descriptor for the thickness of tubular structures, such as blood vessels. Width Descriptor A characteristic that further describes the nature of an opacity. Opacity Descriptor The type of adverse affect that a finding or feature is having on the surrounding anatomy. Abnormal Distribution of Anatomic Structure Response evaluation method as defined in chapter 5, "Reporting of Response" of the WHO Handbook for Reporting Results for Cancer Treatment. WHO Identification of the morphology of detected calcifications. Calcification Descriptor A quantitative numerical statement of the relative attenuation of the X-Ray beam at a specified point. Coefficient that describes the fraction of a beam of X-Rays or gamma rays that is absorbed or scattered per unit thickness of the absorber. This value basically accounts for the number of atoms in a cubic cm volume of material and the probability of a photon being scattered or absorbed from the nucleus or an electron of one of these atoms. Usually expressed in Hounsfield units [referred to as CT Number in Fraser and Pare]. Attenuation Coefficient An X-Ray attenuation coefficient that is used as a threshold. In calcium scoring. Threshold Attenuation Coefficient An opacity that is not expected in a diagnostically normal radiograph. Abnormal opacity A textual description of the mathematical method of calculation that resulted in a calculated value. Calculation Description American College of Radiology. ACR Standard for the Performance of Pediatric and Adult Chest Radiography. In: Standards. Reston, Va: 2001:95-98. Performance of Pediatric and Adult Chest Radiography, ACR American College of Radiology. ACR Position Statement for Quality Control and Improvement, Safety, Infection Control, and Patient Concerns. In: Practice Guidelines and Technical Standards. Reston, Va: 2001:iv. ACR Position Statement A descriptor for a non-lesion object finding or feature, used to indicate whether the object was detected as being internal or external to the patient's body. Non-lesion Modifier A concept modifier for an Osseous Anatomy, or bone related, finding. Osseous Modifier A text label used for tracking a finding or feature, potentially across multiple reporting objects, over time. This label shall be unique within the domain in which it is used. Corresponds to Tracking ID (0062,0020). Tracking Identifier A unique identifier used for tracking a finding or feature, potentially across multiple reporting objects, over time. Corresponds to Tracking UID (0062,0021). Tracking Unique Identifier Disappearance of all target lesions. Target Lesion Complete Response At least a 30% decrease in the sum of the Longest Diameter of target lesions, taking as reference the baseline sum Longest Diameter. Target Lesion Partial Response At least a 20% increase in the sum of the Longest Diameter of target lesions, taking as reference the smallest sum Longest Diameter recorded since the treatment started, or the appearance of one or more new lesions. Target Lesion Progressive Disease Neither sufficient shrinkage to qualify for Partial Response nor sufficient increase to qualify for Progressive Disease, taking as reference the smallest sum Longest Diameter since the treatment started. Target Lesion Stable Disease Disappearance of all non-target lesions and normalization of tumor marker level. Non-Target Lesion Complete Response Persistence of one or more non-target lesions and/or maintenance of tumor marker level above the normal limits. Non-Target Lesion Incomplete Response or Stable Disease Appearance of one or more new lesions and/or unequivocal progression of existing non-target lesions. Non-Target Lesion Progressive Disease The current response evaluation for treatment of solid tumors, according to a method such as RECIST. Current Response Best response recorded from the start of the treatment until disease progression/recurrence, taking as reference for Progressive Disease the smallest measurements recorded since the treatment started, according to a method such as RECIST. Best Overall Response A text identifier of an anatomic feature when a multiplicity of features of that type may be present, such as "Rib 1", "Rib 2" or thoracic vertebrae "T1" or "T2". Anatomic Identifier A measured or calculated evaluation of response. According to a method such as RECIST, the value would be the calculated sum of the lengths of the longest axes of a set of target lesions. Measurement of Response Of or relating to a bronchial (lung) specific channel for the conveyance of a body fluid. Bronchovascular Of, relating to, or composed of bone. Osseous The smallest unit of lung surrounded by connective tissue septa; the unit of lung subtended by any bronchiole that gives off three to five terminal bronchioles [Fraser and Pare]. Secondary pulmonary lobule A method of calculating an overall calcium score, reflecting the calcification of coronary arteries, based on the maximum X-Ray attenuation coefficient and the area of calcium deposits. Agatston scoring method A method of calculating an overall calcium score, reflecting the calcification of coronary arteries, based on the volume of each calcification, typically expressed in mm3. Volume scoring method A method of calculating an overall calcium score, reflecting the calcification of coronary arteries, based on the total mass of calcification, typically expressed in mg. Mass scoring method true Retired - Replaced by (450360000, SCT, "Coronary artery calcium score") A measure often arrived at through calculation of findings from CT examination, which is a common predictor of significant stenosis of the coronary arteries. Calcium score The combination of a focus of pneumonia due to a primary infection with granulomas in the draining hilar or mediastinal lymph nodes [Fraser and Pare]. Primary complex General or local decrease in the apparent width of visible pulmonary vessels, suggesting less than normal blood flow (reduced blood flow) [Fraser and Pare]. Oligemia Linear opacity of very fine width, i.e., a nearly one dimensional opacity. Abnormal lines (1D) Area of abnormal very low X-Ray attenuation, typically lower than aerated lung when occurring in or projecting over lung, or lower than soft tissue when occurring in or projecting over soft tissue. Abnormal lucency A calcific opacity within the lung that may be organized, but does not display the trabecular organization of true bone [Fraser and Pare]. Abnormal calcifications Relatively homogeneous, extended, pattern of abnormal opacity in the lung, typically low in contrast. Abnormal texture A collection of innumerable small, linear, and nodular opacities that together produce a composite appearance resembling a net with small superimposed nodules. The reticular and nodular elements are dimensionally of similar magnitude [Fraser and Pare]. Reticulonodular pattern Irregular septal thickening that suggests the appearance of a row of beads; usually a sign of lymphangitic carcinomatosis, but may also occur rarely in sarcoidosis [Fraser and Pare]. Beaded septum sign A collection of innumerable, small discrete opacities ranging in diameter from 2-10 mm, generally uniform in size and widespread in distribution, and without marginal spiculation [Fraser and Pare]. Nodular pattern An irregular band of peripheral pulmonary opacity adjacent to visceral pleura that simulates the appearance of a pleural plaque and is formed by coalescence of small nodules [Fraser and Pare] . Pseudoplaque A ring of opacities (usually representing a dilated, thick-walled bronchus) in association with a smaller, round, soft tissue opacity (the adjacent pulmonary artery) suggesting a "signet ring" [Fraser and Pare]. Signet-ring sign Equivalent of air bronchogram, but in airways assumed to be bronchioles because of peripheral location and diameter [Fraser and Pare]. Air bronchiologram Radiographic shadow of an air-containing bronchus; presumed to represent an air-containing segment of the bronchial tree (identity often inferred) [Fraser and Pare]. Air bronchogram Air in a crescentic shape in a nodule or mass, in which the air separates the outer wall of the lesion from an inner sequestrum, which most commonly is a fungus ball of Aspergillusspecies [Fraser and Pare]. Air crescent Ground-glass opacity surrounding the circumference of a nodule or mass. May be a sign of invasive aspergillosis or hemorrhage of various causes [Fraser and Pare]. Halo sign Flag denoting that this lesion was identified, at baseline, as a target lesion intended for tracking over time [RECIST]. Target Lesion at Baseline Flag denoting that this lesion was not identified, at baseline, as a target lesion, and was not intended for tracking over time [RECIST]. Non-Target Lesion at Baseline Flag denoting that this finding was identified, at baseline, as a category other than a lesion, and was not intended for tracking over time [RECIST]. Non-Lesion at Baseline Local or general reduction in the caliber of visible pulmonary vessels, presumed to result from decreased flow occasioned by contraction of muscular pulmonary arteries [Fraser and Pare]. Vasoconstriction Local or general increase in the width of visible pulmonary vessels resulting from increased pulmonary blood flow [Fraser and Pare]. Vasodilation A manifestation of lung disease in which bronchi, pulmonary vessels, a fissure or fissures, or septa of secondary pulmonary lobules are abnormally displaced [Fraser and Pare]. Architectural distortion A patchwork of regions of varied attenuation, interpreted as secondary to regional differences in perfusion [Fraser and Pare]. Mosaic perfusion Increased blood flow to the lungs or a portion thereof, manifested by a general or local increase in the width of visible pulmonary vessels [Fraser and Pare]. Pleonemia The common boundary between the shadows of two juxtaposed structures or tissues of different texture or opacity (edge, border) [Fraser and Pare]. Interface A longitudinal opacity no greater than 2 mm in width [Fraser and Pare]. Line The shadow of an absorber that attenuates the primary X-Ray beam less effectively than do surrounding absorbers. In a radiograph, any circumscribed area that appears more nearly black (of greater photometric density) than its surround [Fraser and Pare]. Lucency A midlung region, characterized by the absence of large blood vessels and by a paucity of small blood vessels, that corresponds to the minor fissure and adjacent peripheral lung [Fraser and Pare]. Midlung window The angle formed by the right and left main bronchi at the tracheal bifurcation [Fraser and Pare]. Carina angle The pulmonary artery and its immediate branches in a secondary lobule; HRCT depicts these vessels in certain cases; a.k.a. core structures or lobular core structures [Fraser and Pare]. Centrilobular structures A vertically oriented linear or curvilinear opacity approximately 1-2 mm wide, commonly projected on the tracheal air shadow [Fraser and Pare]. Anterior junction line A vertically oriented, linear or curvilinear opacity approximately 2 mm wide, commonly projected on the tracheal air shadow, and usually slightly concave to the right [Fraser and Pare]. Posterior junction line A space in the right side of the mediastinum into which the medial edge of the right lower lobe extends [Fraser and Pare]. Azygoesophageal recess interface A vertically oriented interface usually seen in a frontal chest radiograph to the left of the thoracic vertebral column [Fraser and Pare]. Paraspinal line A vertically oriented linear opacity ranging in width from 2-5 mm, extending from the thoracic inlet to the bifurcation of the trachea, and visible only on lateral radiographs of the chest [Fraser and Pare]. Posterior tracheal stripe A vertically oriented linear opacity approximately 2-3 mm wide extending from the thoracic inlet to the right tracheobronchial angle [Fraser and Pare]. Right tracheal stripe A longitudinal composite opacity measuring 2-5 mm in width; acceptable when limited to anatomic structures within the mediastinum [Fraser and Pare]. Stripe A gap or passage through an anatomical part or organ; especially: a gap through which another part or organ passes. Hiatus A small rounded elevation or eminence on the first rib for the attachment of the scalenus anterior. Rib Scalene Tubercle A groove that serves for the transmission of the vertebral artery. Vertebral Intervertebral Notch The concave depression of the anterior surface of the scapula. Subscapular Fossa A sloping ridge dividing the dorsal surface of the scapula into the supraspinatous fossa (above), and the infraspinatous fossa (below). Scapular Spine The portion of the dorsal surface of the scapula above the scapular spine. Scapular Supraspinatus Fossa The portion of the dorsal surface of the scapula below the scapular spine. Scapular Infraspinatus Fossa The portion of the aortic arch that defines the transition between its ascending and descending limbs. Aortic knob Section of Azygos vein near the fourth thoracic vertebra, where it arches forward over the root of the right lung, and ends in the superior vena cava, just before that vessel pierces the pericardium. Arch of the Azygos vein A local collection of gas and liquid that, when traversed by a horizontal X-Ray beam, creates a shadow characterized by a sharp horizontal interface between gas density above and liquid density below [Fraser and Pare]. Air-fluid level A circumferential pattern of fine linear spicules, approximately 5 mm long, extending outward from the margin of a solitary pulmonary nodule through a zone of relative lucency [Fraser and Pare]. Corona radiata A number of closely approximated ring shadows representing air spaces 5-10 mm in diameter with walls 2-3 mm thick that resemble a true honeycomb; implies "end-stage" lung [Fraser and Pare]. Honeycomb pattern A straight, curved, or irregular linear opacity that is visible in multiple projections; usually situated in the lower half of the lung; vary markedly in length and width [Fraser and Pare]. Fleischner's line(s) Fine linear opacities present in a lobule when the intralobular interstitium is thickened. When numerous, they may appear as a fine reticular pattern [Fraser and Pare]. Intralobular lines Essentially straight linear opacity 2-6 cm in length and 1-3 mm in width, usually in an upper lung zone [Fraser and Pare]. Kerley A line A straight linear opacity 1.5-2 cm in length and 1-2 mm in width, usually at the lung base [Fraser and Pare]. Kerley B line A group of branching, linear opacities producing the appearing of a fine net, at the lung base [Fraser and Pare]. Kerley C lines Elongated opacity, usually several millimeters wide and up to about 5 cm long, often extending to the pleura, which may be thickened and retracted at the site of contact [Fraser and Pare]. Parenchymal band A collection of innumerable small linear opacities that together produce an appearance resembling a net [Fraser and Pare]. Reticular pattern Usually used in the plural, a generic term for linear opacities of varied distribution produced when the interstitium between pulmonary lobules is thickened [Fraser and Pare]. Septal line(s) A thin curvilinear opacity, a few millimeters or less in thickness, usually less than 1 cm from the pleural surface and paralleling the pleura [Fraser and Pare]. Subpleural line Parallel or slightly convergent linear opacities that suggest the planar projection of tubular structures and that correspond in location and orientation to elements of the bronchial tree [Fraser and Pare]. Tramline shadow Paired, parallel, or slightly convergent linear opacities presumed to represent the walls of a tubular structure seen en face; used if the anatomic nature of a shadow is obscure [Fraser and Pare]. Tubular shadow The opacity of a radiographic shadow to visible light; film blackening; the term should never be used to mean an "opacity" or "radiopacity" [Fraser and Pare]. Density Subpleural increased attenuation in dependent lung. The increased attenuation disappears when the region of lung is nondependent; a.k.a. dependent increased attenuation [Fraser and Pare]. Dependent opacity Hazy increased attenuation of lung, but with preservation of bronchial and vascular margins; caused by partial filling of air spaces, interstitial thickening, partial collapse of alveoli, normal expiration, or increased capillary blood volume [Fraser and Pare]. Ground glass opacity Any ill-defined opacity in the lung [Fraser and Pare]. Infiltrate Discrete, small, round, focal opacity of at least soft tissue attenuation and with a diameter no greater than 7 mm [Fraser and Pare]. Micronodule A shadow produced by a local collection of fluid in one of the interlobar fissures, usually elliptic in one radiographic projection and rounded in the other, resembling a tumor [Fraser and Pare]. Phantom tumor (pseudotumor) Any perceptible discontinuity in film blackening attributed to the attenuation of the X-Ray beam by a specific anatomic absorber or lesion on or within the body of the patient; to be employed only when more specific identification is not possible [Fraser and Pare]. Shadow Term used to define a reticular pattern specific to pneumoconioses [Fraser and Pare]. Small irregular opacities Term used to define a nodular pattern specific to pneumoconioses [Fraser and Pare]. Small rounded opacities Nodular dilation of centrilobular branching structures that resembles a budding tree and represents exudative bronchiolar dilation [Fraser and Pare]. Tree-in-bud sign Any extended, finely granular pattern of pulmonary opacity within which normal anatomic details are partly obscured [Fraser and Pare]. Granular pattern A collection of tiny discrete opacities in the lungs, each measuring 2 mm or less in diameter, generally uniform in size and widespread in distribution [Fraser and Pare]. Miliary pattern Generalized pattern of relatively well defined areas in the lung having different X-Ray attenuations due to a longstanding underlyingpulmonary disease. Mosaic pattern A qualitative descriptor of a size that is dramatically less than typical. Extremely small A qualitative descriptor of a size that is considerably less than typical. Very small A qualitative descriptor of a size that is so small as to be abnormal versus expected size. Too small Shaped like an ellipse (oval). Elliptic A border shape that is made up of, provided with, or divided into lobules (small lobes, curved or rounded projections or divisions). Lobulated Radially orientated border shape. Spiculated The border of a shadow (opacity) is sharply defined [Fraser and Pare]. Sharply defined The border of a shadow (opacity) is distinctly defined [Fraser and Pare]. Distinctly defined The border of a shadow (opacity) is well distinct from adjacent structures [Fraser and Pare]. Well demarcated The border of a shadow (opacity) is sharply distinct from adjacent structures [Fraser and Pare]. Sharply demarcated The border of a shadow (opacity) is poorly distinct from adjacent structures [Fraser and Pare]. Poorly demarcated true Retired - Replaced by (263706005, SCT, "Circumscribed") A shadow (opacity) possessing a complete or nearly complete visible border [Fraser and Pare]. Circumscribed Inspired atmospheric gas. The word is sometimes used to describe gas within the body regardless of its composition or site [Fraser and Pare]. Air true Retired - Replaced with (87784001, SCT, "Soft tissue"). Material having X-Ray attenuation properties similar to muscle. Soft tissue Material having X-Ray attenuation properties similar to calcium, a silver-white bivalent metallic element occurring in plants and animals. Calcium A pulmonary opacity 4-8 mm in diameter, presumed to represent anatomic acinus, or a collection of opacities in the lung, each measuring 4-8 mm in diameter, and together producing an extended, homogeneous shadow [Fraser and Pare]. Acinar The gas-containing portion of the lung parenchyma, including the acini and excluding the interstitium [Fraser and Pare]. Air space Sharply defined, approximately circular opacities occurring singly or in clusters, usually in the upper lobes [Fraser and Pare]. Fibronodular A shadow (opacity) that is ill-defined, lacking clear-cut margins [Fraser and Pare]. Fluffy A shadow resembling a line; any elongated opacity of approximately uniform width [Fraser and Pare]. Linear The number of small opacities per unit area or zone of lung. In the International Labor Organization (ILO) classification of radiographs of the pneumoconioses, the qualifiers 0 through 3 subdivide the profusion into 4 categories. The profusion categories may be further subdivided by employing a 12-point scale [Fraser and Pare]. Profusion The effacement of an anatomic soft tissue border by either a normal anatomic structure or a pathologic state such as airlessness of adjacent lung or accumulation of fluid in the contiguous pleural space; useful in detecting and localizing an opacity along the axis of the X-Ray beam [Fraser and Pare]. Silhouette sign true Retired - Replaced by (68599007, SCT, "Subpleural") Situated or occurring between the pleura and the body wall. Subpleural Spatial arrangement of opacities that bears vague resemblance to the shape of a bat in flight; bilaterally symmetric [Fraser and Pare]. Bat's wing distribution Spatial arrangement of opacities that bears vague resemblance to the shape of a butterfly in flight; bilaterally symmetric [Fraser and Pare]. Butterfly distribution Referring to the region of the bronchioloarteriolar core of a secondary pulmonary lobule [Fraser and Pare]. Centrilobular The joining together of a number of opacities into a single opacity [Fraser and Pare]. Coalescent Of or relating to a lobe (a curved or rounded projection or division). Involving an entire lobe of the lung. Lobar Extremely or excessively acute, as a qualitative measure of severity. Hyper-acute Of uniform opacity or texture throughout [Fraser and Pare]. Homogeneous Lack of homogeneity in opacity or texture. Inhomogeneous Discrete opacity centrally within a larger opacity, as a calcification descriptor. Target Pertaining to sharply defined, linear, and/or nodular opacities containing calcification(s) [Fraser and Pare]. Fibrocalcific Calcifications made up of loosely aggregated particles, resembling wool. Flocculent true Retired - Replaced by (442755000, SCT, "Difference in border shape") A change in the shape formed by the boundary or edges of a finding or feature. Difference in border shape true Retired - Replaced by (442688001, SCT, "Difference in border definition") A change in the clarity of the boundary or edges of a finding or feature. Difference in border definition true Retired - Replaced by (442704007, SCT, "Difference in distribution") A change in the extent of spreading of a finding or feature. Difference in distribution true Retired - Replaced by (442711006, SCT, "Difference in site involvement") A change in the part(s) of the anatomy affected or encompassed by a finding or feature. Difference in site involvement true Retired - Replaced by (442691001, SCT, "Difference in substance") A change in the matter or substance within a finding or feature. Difference in Type of Content true Retired - Replaced by (442700003, SCT, "Difference in texture") A change in the surface or consistency of a finding or feature. Difference in Texture A location in image space, which may or may not correspond to an anatomical reference, which is often used for registering data. Fiducial mark Connected to an injection chamber placed under the skin in the upper part of the chest. When it is necessary to inject some drug, a specific needle is put in the chamber through the skin and a silicon membrane. The advantage of a portacath is that it may be left in place several months contrarily of "classical" catheters. Portacath A tube inserted into the chest wall from outside the body, for drainage. Sometimes used for collapsed lung. Usually connected to a receptor placed lower than the insertion site. Chest tube A tube placed into the subclavian vein to deliver medication directly into the venous system. Central line A stent is a tube inserted into another tube. Kidney stent is a tube that is inserted into the kidney, ureter, and bladder, to help drain urine. Usually inserted through a scoping device presented through the urethra. Kidney stent A stent is a tube inserted into another tube. Pancreatic stent is inserted through the common bile duct to the pancreatic duct, to drain bile. Pancreatic stent A non-lesion object that appears to be a circular band, attached to the body via pierced nipple. Nipple ring A non-lesion object that appears to be a flat round piece of metal. Coin The least quantity assignable, admissible, or possible; the least of a set of X-Ray attenuation coefficients. Minimum Attenuation Coefficient The greatest quantity or value attainable or attained; the largest of a set of X-Ray attenuation coefficients. Maximum Attenuation Coefficient The value that is computed by dividing the sum of a set of X-Ray attenuation coefficients by the number of values . Mean Attenuation Coefficient The value in an ordered set of X-Ray attenuation coefficients, below and above which there is an equal number of values. Median Attenuation Coefficient For a set of X-Ray attenuation coefficients: 1) a measure of the dispersion of a frequency distribution that is the square root of the arithmetic mean of the squares of the deviation of each of the class frequencies from the arithmetic mean of the frequency distribution; 2) a parameter that indicates the way in which a probability function or a probability density function is centered around its mean and that is equal to the square root of the moment in which the deviation from the mean is squared. Standard Deviation of Attenuation Coefficient American College of Radiology. ACR Standard for the Performance of Pediatric and Adult Thoracic Computed Tomography (CT). In: Standards. Reston, Va: 2001:103-107. Performance of Pediatric and Adult Thoracic CT American College of Radiology. ACR Standard for the Performance of Computed Tomography for the Detection of Pulmonary Embolism in Adults. In: Standards. Reston, Va: 2001:109-113. Performance of CT for Detection of Pulmonary Embolism in Adults American College of Radiology. ACR Standard for the Performance of High-Resolution Computed Tomography (HRCT) of the Lungs in Adults. In: Standards. Reston, Va: 2001:115-118. Performance of High-Resolution CT of the Lungs in Adults The method of calculation of a measurement or other type of numeric value is not specified. Unspecified method of calculation The calculation method was performed in two-dimensional space. Two-dimensional method The calculation method was performed in three-dimensional space. Three-dimensional method The relative density of parenchymal tissue as a proportion of breast volume. Breast tissue density The volume of parenchymal tissue. Volume of parenchymal tissue The volume of the breast. Volume of breast The mass of parenchymal tissue. Mass of parenchymal tissue The mass of the breast. Mass of breast A measured or calculated area of vascular calcification. Area of Vascular Calcification A measured or calculated volume of vascular calcification. Volume of Vascular Calcification A measured or calculated percentage of vascular calcification. Percentage of Vascular Calcification A measured or calculated mass of vascular calcification. Mass of Vascular Calcification The average nearest neighbor distance of all individual microcalcifications in a cluster. Average calcification distance in a calcification cluster The standard deviation of nearest neighbor distance of all individual microcalcifications in a cluster. Standard deviation distance of calcifications in a cluster A structured report containing the results of computer-aided detection or diagnosis applied to colon imaging and associated clinical information. Colon CAD Report Overall interpretation of the colon using C-RADS categorization system. Colon Overall Assessment Characteristics of a set of images. Image Set Properties Nominal slice thickness, in mm. Slice Thickness Distance between contiguous images, measured from the center-to-center of each image. Spacing between slices Uniquely identifies groups of composite instances that have the same coordinate system that conveys spatial and/or temporal information. Frame of Reference UID Patient orientation with respect to downward direction (gravity). Recumbent Patient Position with respect to gravity Distinguishes a part of a segmentation. Identifying Segment The diameter of a polyp stalk measured perpendicular to the axis of the stalk. Polyp stalk width The length of the path following the centerline of the colon from the anus to the area of interest. Distance from anus A location in the body that is outside the colon. Anatomic non-colon An inadequate study or a study that is awaiting prior comparisons. The study may have inadequate preparation and cannot exclude lesions greater than or equal to ten millimeters owing to presence of fluid or feces. The study may have inadequate insufflation where one or more colonic segments collapsed on both views. Based on "CT Colonography Reporting and Data System: A Consensus Proposal", Radiology, July 2005; 236:3-9. C0 - Inadequate Study/Awaiting Prior Comparisons The study has a normal colon or benign lesion, with the recommendation to continue routine screening. The study has no visible abnormalities of the colon. The study has no polyps greater than six millimeters. The study may have lipoma, inverted diverticulum, or nonneoplastic findings, such as colonic diverticula. Based on "CT Colonography Reporting and Data System: A Consensus Proposal", Radiology, July 2005; 236:3-9. C1 - Normal Colon or Benign Lesion The study has an intermediate polyp or indeterminate finding and surveillance or colonoscopy is recommended. There may be intermediate polyps between six and nine millimeters and there are less than three in number. The study may have an intermediate finding and cannot exclude a polyp that is greater than or equal to six millimeters in a technically adequate study. Based on "CT Colonography Reporting and Data System: A Consensus Proposal", Radiology, July 2005; 236:3-9. C2 - Intermediate Polyp or Indeterminate Finding The study has a polyp, possibly advanced adenoma, and a follow-up colonoscopy is recommended. The study has a polyp greater than or equal to ten millimeters or the study has three or more polyps that are each between six to nine millimeters. Based on "CT Colonography Reporting and Data System: A Consensus Proposal", Radiology, July 2005; 236:3-9. C3 - Polyp, Possibly Advanced Adenoma The study has a colonic mass, likely malignant, and surgical consultation is recommended. The lesion compromises bowel lumen and demonstrates extracolonic invasion. Based on "CT Colonography Reporting and Data System: A Consensus Proposal", Radiology, July 2005; 236:3-9. C4 - Colonic Mass, Likely Malignant American College of Radiology Practice Guideline for the Performance of Computed Tomography (CT) Colonography in Adults. In: Practice Guidelines and Technical Standards.Reston, Va: American College of Radiology;2006:371-376. ACR Guideline, Performance of Adult CT Colonography American College of Radiology Technical Standard for Diagnostic Medical Physics Performance Monitoring of Computed Tomography (CT) Equipment. In: Practice Guidelines and Technical Standards.Reston, Va: American College of Radiology;2006:945-948. ACR Standard, CT medical physics performance monitoring View Orientation Modifier indicates that the view orientation of the imaging plane is rotated +45° along the cranial-caudal axis. AP+45 View Orientation Modifier indicates that the view orientation of the imaging plane is rotated -45° along the cranial-caudal axis. AP-45 The axis following the shaft of the femur. Anatomical axis of femur Center of Rotation of the natural Acetabulum. Acetabular Center of Rotation Center of Rotation of the natural femur head. Femur Head Center of Rotation Prosthetic component implanted into the acetabulum. Provides hold for the insert that is mounted inside the cup. Acetabular Cup Shell Prosthetic pelvic joint component. Inserted into the cup, takes in the femoral head replacement. Acetabular Cup Insert Prosthetic pelvic joint cup including insert. Acetabular Cup Monoblock Component for Femoral Head Prosthesis where the conic intake for the stem neck can be exchanged.Combined with a Femoral Head Cone Taper Component. Femoral Head Ball Component Exchangeable neck intake for composite femoral head prosthesis.Combined with a Femoral Head Ball Component. Femoral Head Cone Taper Component Prosthesis Implanted into the femoral bone to provide force transmission between joint replacement and bone. On the proximal end a conic neck holds the femoral head replacement. Femoral Stem Distal half of a modular stem prosthesis system.Combined with a Stem Proximal Component. Femoral Stem Distal Component Proximal half of a modular stem prosthesis system.Combined with a Stem Distal Component. Femoral Stem Proximal Component Stem prosthetic component with a modular insert for an exchangeable neck component.Combined with a Neck Component. Femoral Stem Component Prosthetic Neck to be combined with a Stem Component. Neck Component Prosthetic Stem and Femoral Head in one piece. Monoblock Stem A proximal attachment to the shaft used to compensate for bone deficiencies or bone loss. Prosthetic Shaft Augment Artificial femur head surface needed for the partial replacement of the femoral head where only the surface is replaced. Femoral Head Resurfacing Component Fixation using a pin. Pinning Fixation sewing several objects together. Sewing Fixation using a bolt. Bolting Fixation due to forcing an object into a narrow space. Wedging Attachment to the distal end of a cemented stem assuring that the stem is in a central position inside the drilled femoral canal before cementation. Distal Centralizer Planning by an unspecified 2D method. Generic 2D Planning Planning by an unspecified 3D method. Generic 3D Planning Planning of a Hip Replacement, by an unspecified method. Generic Planning for Hip Replacement Planning of Knee Replacement, by an unspecified method. Generic Planning for Knee Replacement Planning of Hip Replacement according to the procedure of M. E. Müller [Eggli et. al.1998]. Müller Method Planning for Hip Replacement A Report containing the results of an Implantation Planning Activity. Implantation Plan A selection of one Implant Component. Selected Implant Component Identification ID of an Implant Component. Component ID An implant template describing the properties (2D/3D geometry and other data) of one Implant Component. Implant Template A connection of two Connected Implantation Plan Components. Component Connection ID of a Mating Feature Set in an Implant Component. Mating Feature Set ID ID of the Mating Feature in a Mating Feature Set in an Implant Component. Mating Feature ID The Spatial Registration of one or more Implant Components. Spatial Registration Patient Images used for an implantation planning activity. Patient Image A collection of Component Connections of Implant Components. Assembly Fiducials that are selected by the user and may or may not belong to anatomical landmarks. User Selected Fiducial Fiducials that represent geometric characteristics, such as center of rotation, and are derived from other fiducials. Derived Fiducial All parameters and data that were used for the planning activity. Information used for planning A description of the plan as encapsulated PDF SOP Instance. Supporting Information A list of all Implant Components selected for an implantation. Implant Component List Reference to objects containing patient data that is used for planning. Patient Data Used During Planning A specification of the values from one or more Degrees of Freedom. Degrees of Freedom Specification ID of one Degree of Freedom. Degree of Freedom ID Reference to objects containing patient data that were not used for planning but are somehow related. Related Patient Data Not Used During Planning Implantation Reports that are somehow related. Contemporaneous implantations that are independent. Related Implantation Reports Implant Assembly Template. Implant Assembly Template Information that is intended to be used intra-operatively. Planning Information for Intraoperative Usage Position of the patient on the operating room table. Implantation Patient Positioning Intended use of the fiducial. Fiducial Intent Type of an Implant Component. Component Type Implant Template released by the Manufacturer. Manufacturer Implant Template Images that are created by a planning application. Derived Planning Images Data that is created by a planning application. Other Derived Planning Data One Implant Component that is connected to another Implant Component. Connected Implantation Plan Component The method used for planning. Planning Method Defines the exact value that was planned for translation. Degree of Freedom Exact Translational Value Defines the minimum value that was planned for translation. Degree of Freedom Minimum Translational Value Defines the maximum value that was planned for translation. Degree of Freedom Maximum Translational Value Defines the exact value that was planned for rotation. Degree of Freedom Exact Rotational Translation Value Defines the minimum value that was planned for rotation. Degree of Freedom Minimum Rotational Value Defines the maximum value that was planned for rotation. Degree of Freedom Maximum Rotational Value Procedure step protocol for photographic imaging of surgical procedures, including photography of specimens collected. Peri-operative Photographic Imaging true Retired - Replaced with (168456004, SCT, "Gross pathology request") Procedure step protocol for imaging gross specimens, typically with a photographic camera (modality XC), and planning further dissection. Gross Specimen Imaging Procedure step protocol for imaging slide specimens. Slide Microscopy Procedure step protocol for imaging slide specimens using a whole slide scanner. Whole Slide Imaging Procedure step protocol for imaging slide specimens using a whole slide scanner with a 20X nominal objective lens, in full color, with a single imaging focal plane across the image. WSI 20X RGB Procedure step protocol for imaging slide specimens using a whole slide scanner with a 40X nominal objective lens, in full color, with a single imaging focal plane across the image. WSI 40X RGB Technique of illuminating specimen. Illumination Method Number of focal planes for a microscopy image acquisition. Number of focal planes Nominal distance above a reference plane (typically a slide glass substrate top surface) of the focal plane. Focal plane Z offset Microscope magnification based on nominal objective lens power. Magnification selection Nominal center wavelength for an imaging spectral band. Illumination wavelength Name (coded) for an imaging spectral band. Illumination spectral band Type of filter inserted into the optical imaging path. Optical filter type Technique for identifying tissue to be imaged versus area of slide not to be imaged. Tissue selection method Imaging performed at multiple imaging (focal) planes. Multiple planes Nominal 5 power objective lens, resulting in a digital image at approximately 2 um/pixel spacing. 5X Nominal 10 power objective lens, resulting in a digital image at approximately 1 um/pixel spacing. 10X Nominal 20 power microscope objective lens, resulting in a digital image at approximately 0.5 um/pixel spacing. 20X Nominal 40 power microscope objective lens, with a combined condenser and objective lens numerical aperture of approximately 1.3, resulting in a digital image at approximately 0.25 um/pixel spacing. 40X Equipment-specific nominal or default method for identifying tiles without tissue imaged for suppression from inclusion in image object. Nominal empty tile suppression Equipment-specific high threshold method for identifying tiles without tissue imaged for suppression from inclusion in image object. High threshold empty tile suppression Tiles without tissue imaged are not suppressed from inclusion in image object. No empty tile suppression Of Interest. Of Interest Rejected for Quality Reasons. Rejected for Quality Reasons For Referring Provider. For Referring Provider For Surgery. For Surgery For Teaching. For Teaching For Conference. For Conference For Therapy. For Therapy For Patient. For Patient For Peer Review. For Peer Review For Research. For Research Quality Issue. Quality Issue Document Title Modifier. Document Title Modifier Key Object Description. Key Object Description A selection that represents the "best" chosen from a larger set of items. The best images within a Study or Series. The criteria against which "best" is measured is not defined. Contrast this with the more specific term "Best illustration of finding". Best In Set A study is a collection of one or more series of medical images, presentation states, and/or SR documents that are logically related for the purpose of diagnosing a patient. A study may include composite instances that are created by a single modality, multiple modalities or by multiple devices of the same modality. [From ] Study A distinct logical set used to group composite instances. All instances within a Series are of the same modality, in the same Frame of Reference (if any), and created by the same equipment. [See ] Series An arbitrarily defined unit of service that has actually been performed (not just scheduled). [From ] Performed Procedure Step An image or set of images illustrating a specific stage (phase in a stress echo study protocol) and view (combination of the transducer position and orientation at the time of image acquisition). Stage-View For Printing. For Printing Selection of information objects for attachment to the clinical report of the Current Requested Procedure. For Report Attachment List of objects that are related to litigation and should be specially handled. May apply if a complaint has been received regarding a patient, or a specific set of images has been the subject of a subpoena, and needs to be sequestered or excluded from automatic purging according to retention policy. For Litigation This Key Object Selection Document references Presentation State instances that are related, which may or may not share a value of Presentation Display Collection UID (0070,1101) or Presentation Sequence Collection UID (0070,1102). Collection of Presentation States Double exposure. Double exposure A list of objects that have been exported out of one organizational domain into another domain. Typically, the first domain has no direct control over what the second domain will do with the objects. Manifest A signed list of objects that have been exported out of one organizational domain into another domain, referenced securely with either Digital Signatures or MACs. Typically, the first domain has no direct control over what the second domain will do with the objects. Signed Manifest The list of objects that constitute a study at the time that the list was created. Complete Study Content The signed list of objects that constitute a study at the time that the list was created, referenced securely with either Digital Signatures or MACs. Signed Complete Study Content The list of objects that were generated in a single procedure step. Complete Acquisition Content The signed list of objects that were generated in a single procedure step, referenced securely with either Digital Signatures or MACs. Signed Complete Acquisition Content A list of frames or single-frame or entire multi-frame instances that together constitute a set for some purpose, such as might be displayed together in the same viewport, as distinct from another set that might be displayed in a separate viewport. Group of Frames for Display List of objects whose use is potentially harmful to the patient. An improperly labeled image could lead to dangerous surgical decisions. Rejected for Patient Safety Reasons List of objects that were acquired using an incorrect modality worklist entry, and that should not be used, since they may be incorrectly identified. Incorrect Modality Worklist Entry List of objects that have expired according to a defined data retention policy. Data Retention Policy Expired Lossy compression has been applied to an image. Lossy Compression Values are derived by calculation of the apparent diffusion coefficient. This concept may be used for the diffusion coefficient of various different models, e.g., mono-exponential (ADCm), kurtosis (ADCk), stretched-exponential (ADCs).The "apparent" appellation is because the diffusion images from which the ADC is computed may also be affected by T2 contrast (T2 "shine-through"), so this concept is distinguished from a "pure" diffusion coefficient that is not so affected. Graessner J. Frequently Asked Questions: Diffusion-Weighted Imaging (DWI). MAGNETOM Flash. Siemens. 2011 Jan. Toivonen J, Merisaari H, Pesola M, Taimen P, Boström PJ, Pahikkala T, et al. Mathematical models for diffusion-weighted imaging of prostate cancer using b values up to 2000 s/mm2: Correlation with Gleason score and repeatability of region of interest analysis. Magnetic Resonance in Medicine. 2015;74(4):1116-24. Apparent Diffusion Coefficient Values are derived by the pixel by pixel addition of two images. Pixel by pixel addition Values are derived by calculation of the diffusion weighting. Diffusion weighted Values are derived by calculation of the diffusion anisotropy. Diffusion Anisotropy Values are derived by calculation of the diffusion attenuation. Diffusion Attenuated Values are derived by the pixel by pixel division of two images. Pixel by pixel division Values are derived by the pixel by pixel masking of one image by another. Pixel by pixel mask Values are derived by calculating the pixel by pixel maximum of two or more images. Pixel by pixel Maximum Values are derived by calculating the pixel by pixel mean of two or more images. Pixel by pixel mean Values are derived by calculating from spectroscopy data pixel values localized in two dimensional space based on the concentration of specific metabolites (i.e, at specific frequencies). Metabolite Maps from spectroscopy data Values are derived by calculating the pixel by pixel minimum of two or more images. Pixel by pixel Minimum The time required for blood to pass through a region of tissue. Mean Transit Time Values are derived by the pixel by pixel multiplication of two images. Pixel by pixel multiplication The area described by the baseline and the signal loss due to passage of contrast bolus in tissue in a perfusion experiment. Abbreviated NEI or N1. Negative Enhancement Integral true Retired The absolute flow rate of blood perfusing a region of the brain as volume per mass per unit of time. The mass divisor may be approximated by a measurement of volume assuming a tissue density of 1. Regional Cerebral Blood Flow true Retired The absolute volume of blood perfusing a region of brain as volume per mass. The mass divisor may be approximated by a measurement of volume assuming a tissue density of 1. Regional Cerebral Blood Volume Correlation Coefficient, r. R-Coefficient Values are derived by calculating proton density values. Proton Density The relative change in signal. Signal Change The ratio of the desired signal to the level of noise. Signal to Noise Values are derived by calculating the standard deviation of two or more images. Standard Deviation Values are derived by the pixel by pixel subtraction of two images. Pixel by pixel subtraction The time constant for the decay of longitiudinal magnetization caused by spin-lattice relaxation. The inverse of the longitudinal relaxation rate constant, i.e., T1 = 1/R1. T1 The time constant for the decay of transverse magnetization caused by a combination of spin-spin relaxation and magnetic field inhomogeneity. The inverse of the transverse relaxation rate constant, i.e., T2* = 1/R2*. T2* The time constant for the decay of transverse magnetization caused by spin-spin relaxation. The inverse of the transverse relaxation rate constant, i.e., T2 = 1/R2. T2 The time course of signal. Time Course of Signal Values are derived by calculating values based on temperature encoding. Temperature encoded Values are derived by calculating the value of the Student's T-Test statistic from multiple image samples. Student's T-Test The time from the start of the contrast agent injection to the maximum enhancement value. Time To Peak Values are derived by calculating values based on velocity encoded. Phase contrast. Velocity encoded Values are derived by calculating the value of the Z-Score statistic from multiple image samples. Z-Score Values are derived by reformatting in a flat plane other than that originally acquired. Multiplanar reformatting Values are derived by reformatting in a curve plane other than that originally acquired. Curved multiplanar reformatting Values are derived by volume rendering of acquired data. Volume rendering Values are derived by surface rendering of acquired data. Surface rendering Values are derived by segmentation (classification into tissue types) of acquired data. Segmentation Values are derived by selectively editing acquired data (removing values from the volume), such as in order to remove obscuring structures or noise. Volume editing Values are derived by maximum intensity projection of acquired data. Maximum intensity projection Values are derived by minimum intensity projection of acquired data. Minimum intensity projection For single-proton MR spectroscopy, the resonance peak corresponding to glutamate and glutamine. Glutamate and glutamine For single-proton MR spectroscopy, the ratio between the Choline and Creatine resonance peaks. Choline/Creatine Ratio For single-proton MR spectroscopy, the ratio between the N-acetylaspartate and Creatine resonance peaks. N-acetylaspartate/Creatine Ratio For single-proton MR spectroscopy, the ratio between the N-acetylaspartate and Choline resonance peaks. N-acetylaspartate/Choline Ratio The time delay to the maximum of the residue function after deconvolution.Shih LC, Saver JL, Alger JR, Starkman S, Leary MC, Vinuela F, et al. Perfusion-Weighted Magnetic Resonance Imaging Thresholds Identifying Core, Irreversibly Infarcted Tissue. Stroke. 2003 Jun 1;34(6):1425-30. doi:10.1161/01.STR.0000072998.70087.E9. Østergaard L, Weisskoff RM, Chesler DA, Gyldensted C, Rosen BR. High resolution measurement of cerebral blood flow using intravascular tracer bolus passages. Part I: Mathematical approach and statistical analysis. Magnetic Resonance in Medicine. 1996;36(5):715-25. doi:10.1002/mrm.1910360510. Tmax Values are derived by spatial resampling of acquired data. Spatial resampling Values are derived by edge enhancement. Edge enhancement Values are derived by smoothing. Smoothing Values are derived by Gaussian blurring. Gaussian blur Values are derived by unsharp masking. Unsharp mask Values are derived by stitching two or more images together. Image stitching Spatially-related frames in this image are representative frames from the referenced 3D volume data. Spatially-related frames extracted from the volume Temporally-related frames in this image are representative frames from the referenced 3D volume data. Temporally-related frames extracted from the set of volumes Conversion of a polar coordinate image to rectangular (Cartesian) coordinate image. Polar to Rectangular Scan Conversion For single-proton MR spectroscopy, the resonance peak corresponding to creatine and choline. Creatine and Choline For single-proton MR spectroscopy, the resonance peak corresponding to lipid and lactate. Lipid and Lactate For single-proton MR spectroscopy, the ratio between the Choline and Creatine resonance peak and the Citrate resonance peak. Creatine+Choline/Citrate Ratio Image pixels created through proportional weighting of multiple acquisitions at distinct X-Ray energies. Multi-energy proportional weighting Magnetization Transfer Ratio (MTR) is the ratio of magnetization transfer, Mo - Ms/Mo, where Ms represents the magnitude of signal of tissues with the saturation pulse used to saturate macromolecular protons on, and Mo is the magnitude of signal without saturation.See Dousset V, Grossman RI, Ramer KN, Schnall MD, Young LH, Gonzalez-Scarano F, et al. Experimental allergic encephalomyelitis and multiple sclerosis: lesion characterization with magnetization transfer imaging. Radiology. 1992 Feb 1;182(2):483-91. http://dx.doi.org/10.1148/radiology.182.2.1732968 Magnetization Transfer Ratio De-identification using a profile defined in that requires removing all information related to the identity and demographic characteristics of the patient, any responsible parties or family members, any personnel involved in the procedure, the organizations involved in ordering or performing the procedure, additional information that could be used to match instances if given access to the originals, such as UIDs, dates and times, and Private Attributes, when that information is present in the non-Pixel Data Attributes, including graphics or overlays. Basic Application Confidentiality Profile Additional de-identification according to an option defined in that requires any information burned in to the Pixel Data corresponding to the Attribute information specified to be removed by the Profile and any other Options specified also be removed. Clean Pixel Data Option Additional de-identification according to an option defined in that requires that sufficient removal or distortion of the Pixel Data shall be applied to prevent recognition of an individual from the instances themselves or a reconstruction of a set of instances. Clean Recognizable Visual Features Option Additional de-identification according to an option defined in that requires that any information encoded in graphics, text annotations or overlays corresponding to the Attribute information specified to be removed by the Profile and any other Options specified also be removed. Clean Graphics Option Additional de-identification according to an option defined in that requires that any information encoded in SR Content Items or Acquisition Context Sequence Items corresponding to the Attribute information specified to be removed by the Profile and any other Options specified also be removed. Clean Structured Content Option Additional de-identification according to an option defined in that requires that any information that is embedded in text or string Attributes corresponding to the Attribute information specified to be removed by the Profile and any other Options specified also be removed. Clean Descriptors Option Retention of information that would otherwise be removed during de-identification according to an option defined in that requires that any dates and times be retained,. Retain Longitudinal Temporal Information Full Dates Option Retention of information that would otherwise be removed during de-identification according to an option defined in that requires that any dates and times be modified in a manner that preserves temporal relationships. Study Date and Time. Retain Longitudinal Temporal Information Modified Dates Option Retention of information that would otherwise be removed during de-identification according to an option defined in that requires that any physical characteristics of the patient, which are descriptive rather than identifying information per se, be retained. Patient's Age, Sex, Size (height) and Weight. Retain Patient Characteristics Option Retention of information that would otherwise be removed during de-identification according to an option defined in that requires that any information that identifies a device be retained. Device Serial Number. Retain Device Identity Option Retention of information that would otherwise be removed during de-identification according to an option defined in that requires that UIDs be retained. SOP Instance UID. Retain UIDs Option Retention of information that would otherwise be removed during de-identification according to an option defined in that requires that Private Attributes that are known not to contain identity information be retained. Private SUV scale factor. Retain Safe Private Option Retention of information that would otherwise be removed during de-identification according to an option defined in that requires that any information that identifies an institution be retained. Institution Name. Retain Institution Identity Option Images used as the source for an image processing operation that extracts data for a single subject from an image containing data for multiple subjects (e.g., a group of animals imaged simultaneously). Predecessor containing group of imaging subjects An image processing operation that extracts data for a single subject from an image containing data for multiple subjects (e.g., a group of animals imaged simultaneously). Extraction of individual subject from group A single subject that has been selected from amongst multiple subjects (e.g., a group of animals imaged simultaneously), and whose data has been extracted. Single subject extracted from group Sum of the diffusion tensor eigenvalues.I.e.: Tr = λ1+ λ2+ λ3, where λ1 ≥ λ2 ≥ λ3.Reference: Winston GP. The physical and biological basis of quantitative parameters derived from diffusion MRI. Quantitative Imaging in Medicine and Surgery. 2012;2(4) :254-265. doi:10.3978/j.issn.2223-4292.2012.12.05. () Trace Average of the diffusion tensor eigenvalues in all directions.I.e.: MD = (λ1+ λ2+ λ3) /3Reference: Winston GP. The physical and biological basis of quantitative parameters derived from diffusion MRI. Quantitative Imaging in Medicine and Surgery. 2012;2(4) :254-265. doi:10.3978/j.issn.2223-4292.2012.12.05. () Mean Diffusivity Average of the two non-principal (i.e., perpendicular) diffusion tensor eigenvalues(also known as transverse diffusivity, perpendicular diffusivity).I.e.: DR= (λ2+ λ3) /2Reference: Winston GP. The physical and biological basis of quantitative parameters derived from diffusion MRI. Quantitative Imaging in Medicine and Surgery. 2012;2(4) :254-265. doi:10.3978/j.issn.2223-4292.2012.12.05. () Radial Diffusivity Diffusion tensor eigenvalue of the principal axis (also known as longitudinal diffusivity, parallel diffusivity).I.e.: DA = λ1Reference: Winston GP. The physical and biological basis of quantitative parameters derived from diffusion MRI. Quantitative Imaging in Medicine and Surgery. 2012;2(4) :254-265. doi:10.3978/j.issn.2223-4292.2012.12.05. () Axial Diffusivity MK = diffusional kurtosis averaged over all gradient directionsReference: Tabesh A, Jensen JH, Ardekani BA, Helpern JA. Estimation of Tensors and Tensor-Derived Measures in Diffusional Kurtosis Imaging. Magnetic Resonance in Medicine. 2011;65(3) :823-836. doi:10.1002/mrm.22655. ()Reference: Liu C, Mang SC, Moseley ME. In VivoGeneralized Diffusion Tensor Imaging (GDTI) Using Higher-Order Tensors (HOT). Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine. 2010;63(1) :243-252. doi:10.1002/mrm.22192. () Mean Kurtosis AKC = diffusional kurtosis in a given directionReference: Liu C, Mang SC, Moseley ME. In VivoGeneralized Diffusion Tensor Imaging (GDTI) Using Higher-Order Tensors (HOT). Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine. 2010;63(1) :243-252. doi:10.1002/mrm.22192. () Apparent Kurtosis Coefficient KR = diffusional kurtosis perpendicular to the direction of the highest diffusion (also known as transverse kurtosis, perpendicular kurtosis)Reference: Tabesh A, Jensen JH, Ardekani BA, Helpern JA. Estimation of Tensors and Tensor-Derived Measures in Diffusional Kurtosis Imaging. Magnetic Resonance in Medicine. 2011;65(3) :823-836. doi:10.1002/mrm.22655. () Radial Kurtosis KA = diffusional kurtosis in the direction of the highest diffusion (also known as longitudinal kurtosis, parallel kurtosis)Reference: Tabesh A, Jensen JH, Ardekani BA, Helpern JA. Estimation of Tensors and Tensor-Derived Measures in Diffusional Kurtosis Imaging. Magnetic Resonance in Medicine. 2011;65(3) :823-836. doi:10.1002/mrm.22655. () Axial Kurtosis FKA = fractional kurtosis of diffusion in tissuesReference: Liu C, Mang SC, Moseley ME. In VivoGeneralized Diffusion Tensor Imaging (GDTI) Using Higher-Order Tensors (HOT). Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine. 2010;63(1) :243-252. doi:10.1002/mrm.22192. () Fractional Kurtosis Anisotropy Tracking based on local directionalityReference: Descoteaux M, Deriche R, Knösche TR, Anwander A. Deterministic and probabilistic tractography based on complex fibre orientation distributions. IEEE Trans Med Imaging.2009; 28(2) :269-86 () Deterministic Tracking using local fiber orientation likelihood derive global connectivity likelihoodReference: Descoteaux M, Deriche R, Knösche TR, Anwander A. Deterministic and probabilistic tractography based on complex fibre orientation distributions. IEEE Trans Med Imaging.2009; 28(2) :269-86 () Probabilistic Tracking allfibers simultaneously, searching for a global optimum.Reference: Reisert M, Mader I, Anastasopoulos C, Weigel M, Schnell S, Kiselev V. Global fiber reconstruction becomes practical. NeuroImage. 2011 Jan 15;54(2) :955-62. () Global Fiber Assessment by Continuous TrackingReference: Mori S, Crain BJ, Chacko VP, van Zijl PC. Three-dimensional tracking of axonal projections in the brain by magnetic resonance imaging. Ann Neurol . 1999 Feb;45(2) :265-9 ()Reference: Descoteaux M, Deriche R, Knösche TR, Anwander A. Deterministic and probabilistic tractography based on complex fibre orientation distributions. IEEE Trans Med Imaging.2009; 28(2) :269-86 () FACT Streamline tracking techniques (STT)Reference: Basser PJ, Pajevic S, Pierpaoli C, Duda J, Aldroubi A. In vivo fiber tractography using DT-MRI data. Magn Reson Med. 2000 Oct;44(4) :625-32 () Streamline Tensor DeflectionReference: Lazar M, Weinstein DM, Tsuruda JS, Hasan KM, Arfanakis K, Meyerand ME, Badie B, Rowley HA, Haughton V, Field A, Alexander AL. White matter tractography using diffusion tensor deflection. Hum Brain Mapp.2003 Apr;18(4) :306-21. () TEND Non-parametric estimation of fiber tracking dispersionReference: Lazar M, Alexander AL. Bootstrap white matter tractography (BOOT-TRAC). Neuroimage. 2005 Jan 15;24(2) :524-32. Epub 2004 Nov 24. ()Reference: Jones DK, Pierpaoli C. Confidence mapping in diffusion tensor magnetic resonance imaging tractography using a bootstrap approach. Magn Reson Med.2005 May;53(5) :1143-9. () Bootstrap Integration method, 1st orderReference: Basser PJ, Pajevic S, Pierpaoli C, Duda J, Aldroubi A. In vivo fiber tractography using DT-MRI data. Magn Reson Med. 2000 Oct;44(4) :625-32 ()Reference: Descoteaux M, Deriche R, Knösche TR, Anwander A. Deterministic and probabilistic tractography based on complex fibre orientation distributions. IEEE Trans Med Imaging.2009; 28(2) :269-86 () Euler Integration method, 2nd or 4th orderReference: Basser PJ, Pajevic S, Pierpaoli C, Duda J, Aldroubi A. In vivo fiber tractography using DT-MRI data. Magn Reson Med. 2000 Oct;44(4) :625-32 () Runge-Kutta High Angular Resolution Diffusion ImagingReference: Tuch DS, Reese TG, Wiegell MR, Makris N, Belliveau JW, Wedeen VJ. High angular resolution diffusion imaging reveals intravoxel white matter fiber heterogeneity. Magn Reson Med.2002 Oct;48(4) :577-82. ()Reference: Descoteaux M, Deriche R, Knösche TR, Anwander A. Deterministic and probabilistic tractography based on complex fibre orientation distributions. IEEE Trans Med Imaging.2009; 28(2) :269-86 () HARDI Diffusion(al) Kurtosis ImagingReference: Jensen JH, Helpern JA, Ramani A, Lu H, Kaczynski K. Diffusional kurtosis imaging: the quantification of non-gaussian water diffusion by means of magnetic resonance imaging. Magn Reson Med. 2005 Jun;53(6) :1432-40. () DKI Diffusion Tensor ImagingReference: Winston GP. The physical and biological basis of quantitative parameters derived from diffusion MRI. Quantitative Imaging in Medicine and Surgery. 2012;2(4) :254-265. doi:10.3978/j.issn.2223-4292.2012.12.05. () DTI Diffusion Spectrum ImagingReference: Wedeen VJ, Wang RP, Schmahmann JD, Benner T, Tseng WY, Dai G, Pandya DN, Hagmann P, D'Arceuil H, de Crespigny AJ. Diffusion spectrum magnetic resonance imaging (DSI) tractography of crossing fibers. Neuroimage. 2008 Jul 15;41(4) :1267-77. doi:10.1016/j.neuroimage.2008.03.036. ()Reference: Hagmann P, Jonasson L, Maeder P, Thiran JP, Wedeen VJ, Meuli R. Understanding diffusion MR imaging techniques: from scalar diffusion-weighted imaging to diffusion tensor imaging and beyond. Radiographics.2006 Oct;26 Suppl 1:S205-23. () DSI Line Scan Diffusion Imaging sequenceReference: Gudbjartsson H, Maier SE, Mulkern RV, Mórocz IA, Patz S, Jolesz FA. Line scan diffusion imaging. Magn Reson Med.1996 Oct;36(4) :509-19. () LSDI An Echo Planar Imaging sequence in which the entire range of phase encoding steps is acquired in one repetition.Reference: Turner R, Le Bihan D, Chesnick AS. Echo-planar imaging of diffusion and perfusion. Magn Reson Med.1991 Jun;19(2) :247-53. () Single Shot EPI An Echo Planar Imaging sequence in which separate parts of the range of phase encoding steps are acquired in multiple repetitions.Reference: Robson MD, Anderson AW, Gore JC. Diffusion-weighted multiple shot echo planar imaging of humans without navigation. Magn Reson Med.1997 Jul;38(1) :82-8. () Multiple Shot EPI A imaging sequence that uses a subset of k-space data from an array of receiver coils, e.g., Sensitivity Encoding.Reference: Pruessmann KP, Weiger M, Scheidegger MB, Boesiger P. SENSE: sensitivity encoding for fast MRI. Magn Reson Med.1999 Nov;42(5) :952-62. ()Reference: Deshmane A, Gulani V, Griswold MA, Seiberlich N. Parallel MR imaging. J Magn Reson Imaging. 2012 Jul;36(1) :55-72. () Parallel Imaging Modeling anisotropic diffusion in a volume with a tensor following a Gaussian distribution (six degrees of freedom)Reference: Basser PJ, Mattiello J, LeBihan D. Estimation of the effective self-diffusion tensor from the NMR spin echo. J Magn Reson B.1994 Mar;103(3) :247-54. ()Reference: Hagmann P1, Jonasson L, Maeder P, Thiran JP, Wedeen VJ, Meuli R. Understanding diffusion MR imaging techniques: from scalar diffusion-weighted imaging to diffusion tensor imaging and beyond. Radiographics.2006 Oct;26 Suppl 1:S205-23. () Single Tensor Modeling anisotropic diffusion in a volume by fitting of multiple tensorsReference: Ozarslan E, Mareci TH. Generalized diffusion tensor imaging and analytical relationships between diffusion tensor imaging and high angular resolution diffusion imaging. Magn Reson Med.2003 Nov;50(5) :955-65. ()Reference: Pasternak O, Assaf Y, Intrator N, Sochen N. Variational multiple-tensor fitting of fiber-ambiguous diffusion-weighted magnetic resonance imaging voxels. Magn Reson Imaging.2008 Oct;26(8) :1133-44. doi:10.1016/j.mri.2008.01.006. () Multi Tensor Reconstruction of anisotropic diffusion in a volume without imposing an underlying statistical model (data-driven approach)Reference: Wedeen VJ, Hagmann P, Tseng WY, Reese TG, Weisskoff RM. Mapping complex tissue architecture with diffusion spectrum magnetic resonance imaging. Magn Reson Med.2005 Dec;54(6) :1377-86. ()Reference: Hagmann P, Jonasson L, Maeder P, Thiran JP, Wedeen VJ, Meuli R. Understanding diffusion MR imaging techniques: from scalar diffusion-weighted imaging to diffusion tensor imaging and beyond. Radiographics.2006 Oct;26 Suppl 1:S205-23. () Model Free Composite Hindered and Restricted Model of DiffusionReference: Assaf Y, Basser PJ. Composite hindered and restricted model of diffusion (CHARMED) MR imaging of the human brain. Neuroimage.2005 Aug 1;27(1) :48-58. () CHARMED Diffusion Orientation TransformReference: Ozarslan E, Shepherd TM, Vemuri BC, Blackband SJ, Mareci TH. Resolution of complex tissue microarchitecture using the diffusion orientation transform (DOT). Neuroimage. 2006 Jul 1;31(3) :1086-103. Epub 2006 Mar 20. () DOT Persistent Angular StructureReference: Jansons KM, Alexander DC. Persistent Angular Structure: new insights from diffusion MRI data. Dummy version. Inf Process Med Imaging.2003 Jul;18:672-83. () PAS A method to estimate the distribution of fiber orientations by deconvolution of the diffusion-weighted signal attenuation measured over the surface of a sphere expressed as the convolution over the sphere of a response function.Reference: Tournier JD, Calamante F, Gadian DG, Connelly A. Direct estimation of the fiber orientation density function from diffusion-weighted MRI data using spherical deconvolution. NeuroImage. 2004 Nov;23(3) :1176-85. () Spherical Deconvolution The diffusion sensitization factor (b value) used during acquisition of the source image used for a diffusion model. Source image diffusion b-value The method used to fit a set of data to a mathematical model. Least squares. Model fitting method Mono-exponential (single compartment) Apparent Diffusion Coefficient (ADC) model. Burdette JH, Elster AD, Ricci PE. Calculation of apparent diffusion coefficients (ADCs) in brain using two-point and six-point methods. J Comput Assist Tomogr. 1998 Oct;22(5):792-4. Toivonen J, Merisaari H, Pesola M, Taimen P, Boström PJ, Pahikkala T, et al. Mathematical models for diffusion-weighted imaging of prostate cancer using b values up to 2000 s/mm2: Correlation with Gleason score and repeatability of region of interest analysis. Magnetic Resonance in Medicine. 2015;74(4):1116-24. Mono-exponential diffusion model Bi-exponential intravoxel incoherent motion (IVIM) model. Merisaari H, Movahedi P, Perez IM, Toivonen J, Pesola M, Taimen P, et al. Fitting methods for intravoxel incoherent motion imaging of prostate cancer on region of interest level: Repeatability and gleason score prediction. Magnetic Resonance in Medicine. 2016. Toivonen J, Merisaari H, Pesola M, Taimen P, Boström PJ, Pahikkala T, et al. Mathematical models for diffusion-weighted imaging of prostate cancer using b values up to 2000 s/mm2: Correlation with Gleason score and repeatability of region of interest analysis. Magnetic Resonance in Medicine. 2015;74(4):1116-24. Barbieri S, Donati OF, Froehlich JM, Thoeny HC. Impact of the calculation algorithm on biexponential fitting of diffusion-weighted MRI in upper abdominal organs. Magnetic Resonance in Medicine. 2016;75(5):2175-84. Bi-exponential (IVIM) diffusion model . Toivonen J, Merisaari H, Pesola M, Taimen P, Boström PJ, Pahikkala T, et al. Mathematical models for diffusion-weighted imaging of prostate cancer using b values up to 2000 s/mm2: Correlation with Gleason score and repeatability of region of interest analysis. Magnetic Resonance in Medicine. 2015;74(4):1116-24. Kurtosis diffusion model . Oshio K, Shinmoto H, Mulkern RV. Interpretation of diffusion MR imaging data using a gamma distribution model. Magn Reson Med Sci. 2014;13: 191-195. Gamma distribution model . Bennett KM, Schmainda KM, Bennett RT, Rowe DB, Lu H, Hyde JS. Characterization of continuously distributed cortical water diffusion rates with a stretched-exponential model. Magn Reson Med. 2003;50: 727-734. Toivonen J, Merisaari H, Pesola M, Taimen P, Boström PJ, Pahikkala T, et al. Mathematical models for diffusion-weighted imaging of prostate cancer using b values up to 2000 s/mm2: Correlation with Gleason score and repeatability of region of interest analysis. Magnetic Resonance in Medicine. 2015;74(4):1116-24. Stretched exponential diffusion model . Yablonskiy DA, Bretthorst GL, Ackerman JJH. Statistical model for diffusion attenuated MR signal. Magnetic Resonance in Medicine. 2003;50(4):664-9. Truncated Gaussian diffusion model Model fitting by using the log of the ratio of the two samples. Burdette JH, Elster AD, Ricci PE. Calculation of apparent diffusion coefficients (ADCs) in brain using two-point and six-point methods. J Comput Assist Tomogr. 1998 Oct;22(5):792-4. Log of ratio of two samples Model fitting by least squares method from more than two samples. Burdette JH, Elster AD, Ricci PE. Calculation of apparent diffusion coefficients (ADCs) in brain using two-point and six-point methods. J Comput Assist Tomogr. 1998 Oct;22(5):792-4. Least squares fit of multiple samples Model fitting by Levenberg-Marquardt method. Barbieri S, Donati OF, Froehlich JM, Thoeny HC. Impact of the calculation algorithm on biexponential fitting of diffusion-weighted MRI in upper abdominal organs. Magnetic Resonance in Medicine. 2016;75(5):2175-84. Levenberg-Marquardt Model fitting by Trust-Region method. Barbieri S, Donati OF, Froehlich JM, Thoeny HC. Impact of the calculation algorithm on biexponential fitting of diffusion-weighted MRI in upper abdominal organs. Magnetic Resonance in Medicine. 2016;75(5):2175-84. Trust-Region Model fitting by Fixed-Dp method. Barbieri S, Donati OF, Froehlich JM, Thoeny HC. Impact of the calculation algorithm on biexponential fitting of diffusion-weighted MRI in upper abdominal organs. Magnetic Resonance in Medicine. 2016;75(5):2175-84. Fixed-Dp Model fitting by Segmented-Unconstrained method. Barbieri S, Donati OF, Froehlich JM, Thoeny HC. Impact of the calculation algorithm on biexponential fitting of diffusion-weighted MRI in upper abdominal organs. Magnetic Resonance in Medicine. 2016;75(5):2175-84. Segmented-Unconstrained Model fitting by Segmented-Constrained method. Barbieri S, Donati OF, Froehlich JM, Thoeny HC. Impact of the calculation algorithm on biexponential fitting of diffusion-weighted MRI in upper abdominal organs. Magnetic Resonance in Medicine. 2016;75(5):2175-84. Segmented-Constrained Model fitting by Bayesian-Probability method. Barbieri S, Donati OF, Froehlich JM, Thoeny HC. Impact of the calculation algorithm on biexponential fitting of diffusion-weighted MRI in upper abdominal organs. Magnetic Resonance in Medicine. 2016;75(5):2175-84. Neil JJ, Bretthorst GL. On the use of bayesian probability theory for analysis of exponential decay date: An example taken from intravoxel incoherent motion experiments. Magnetic Resonance in Medicine. 1993;29(5):642-7. Bayesian-Probability Diffusion modeling by voxelwise selection of b-values. Gatidis S, Schmidt H, Martirosian P, Nikolaou K, Schwenzer NF. Apparent diffusion coefficient-dependent voxelwise computed diffusion-weighted imaging: An approach for improving SNR and reducing T2 shine-through effects. Journal of Magnetic Resonance Imaging. 2016;43(4):824-32. Voxelwise selection of b-value Coefficient reflecting the anisotropy of the tissues, derived from a diffusion weighted MR image. It represents the volume of an ellipsoid whose semimajor axes are the three eigenvalues of the diffusion tensor divided by the volume of a sphere whose radius is the mean diffusivity. Pierpaoli C, Basser PJ. Toward a quantitative assessment of diffusion anisotropy. Magn Reson Med. 1996 Dec 1;36(6):893-906. Volume Ratio The pure diffusion coefficient, i.e., one that is not affected by T2 contrast effects. Graessner J. Frequently Asked Questions: Diffusion-Weighted Imaging (DWI). MAGNETOM Flash. Siemens. 2011 Jan. Diffusion Coefficient The diffusion coefficient of a mono-exponential diffusion model (ADCm). Toivonen J, Merisaari H, Pesola M, Taimen P, Boström PJ, Pahikkala T, et al. Mathematical models for diffusion-weighted imaging of prostate cancer using b values up to 2000 s/mm2: Correlation with Gleason score and repeatability of region of interest analysis. Magnetic Resonance in Medicine. 2015;74(4):1116-24. Mono-exponential Apparent Diffusion Coefficient The slow diffusion coefficient (Ds) of a bi-exponential intravoxel incoherent motion (IVIM) diffusion model. Merisaari H, Movahedi P, Perez IM, Toivonen J, Pesola M, Taimen P, et al. Fitting methods for intravoxel incoherent motion imaging of prostate cancer on region of interest level: Repeatability and gleason score prediction. Magnetic Resonance in Medicine. 2016. Toivonen J, Merisaari H, Pesola M, Taimen P, Boström PJ, Pahikkala T, et al. Mathematical models for diffusion-weighted imaging of prostate cancer using b values up to 2000 s/mm2: Correlation with Gleason score and repeatability of region of interest analysis. Magnetic Resonance in Medicine. 2015;74(4):1116-24. Barbieri S, Donati OF, Froehlich JM, Thoeny HC. Impact of the calculation algorithm on biexponential fitting of diffusion-weighted MRI in upper abdominal organs. Magnetic Resonance in Medicine. 2016;75(5):2175-84. Slow Diffusion Coefficient The fast diffusion coefficient (Df) of a bi-exponential intravoxel incoherent motion (IVIM) diffusion model. Merisaari H, Movahedi P, Perez IM, Toivonen J, Pesola M, Taimen P, et al. Fitting methods for intravoxel incoherent motion imaging of prostate cancer on region of interest level: Repeatability and gleason score prediction. Magnetic Resonance in Medicine. 2016. Toivonen J, Merisaari H, Pesola M, Taimen P, Boström PJ, Pahikkala T, et al. Mathematical models for diffusion-weighted imaging of prostate cancer using b values up to 2000 s/mm2: Correlation with Gleason score and repeatability of region of interest analysis. Magnetic Resonance in Medicine. 2015;74(4):1116-24. Barbieri S, Donati OF, Froehlich JM, Thoeny HC. Impact of the calculation algorithm on biexponential fitting of diffusion-weighted MRI in upper abdominal organs. Magnetic Resonance in Medicine. 2016;75(5):2175-84. Fast Diffusion Coefficient The fast diffusion fraction of a bi-exponential intravoxel incoherent motion (IVIM) diffusion model. Merisaari H, Movahedi P, Perez IM, Toivonen J, Pesola M, Taimen P, et al. Fitting methods for intravoxel incoherent motion imaging of prostate cancer on region of interest level: Repeatability and gleason score prediction. Magnetic Resonance in Medicine. 2016. Toivonen J, Merisaari H, Pesola M, Taimen P, Boström PJ, Pahikkala T, et al. Mathematical models for diffusion-weighted imaging of prostate cancer using b values up to 2000 s/mm2: Correlation with Gleason score and repeatability of region of interest analysis. Magnetic Resonance in Medicine. 2015;74(4):1116-24. Barbieri S, Donati OF, Froehlich JM, Thoeny HC. Impact of the calculation algorithm on biexponential fitting of diffusion-weighted MRI in upper abdominal organs. Magnetic Resonance in Medicine. 2016;75(5):2175-84. Fast Diffusion Coefficient Fraction The diffusion coefficient of a kurtosis diffusion model (ADCk). Toivonen J, Merisaari H, Pesola M, Taimen P, Boström PJ, Pahikkala T, et al. Mathematical models for diffusion-weighted imaging of prostate cancer using b values up to 2000 s/mm2: Correlation with Gleason score and repeatability of region of interest analysis. Magnetic Resonance in Medicine. 2015;74(4):1116-24. Kurtosis Diffusion Coefficient The scale (theta) parameter of a gamma distribution diffusion model. Oshio K, Shinmoto H, Mulkern RV. Interpretation of diffusion MR imaging data using a gamma distribution model. Magn Reson Med Sci. 2014;13: 191-195. Gamma Distribution Scale Parameter The shape (k) parameter of a gamma distribution diffusion model. Oshio K, Shinmoto H, Mulkern RV. Interpretation of diffusion MR imaging data using a gamma distribution model. Magn Reson Med Sci. 2014;13: 191-195. Gamma Distribution Shape Parameter The mode (maximum value of probability density function) of a gamma distribution diffusion model. Computed as (k-1)*theta, for k >= 1. Gamma Distribution Mode The distributed diffusion coefficient of a stretched-exponential diffusion model (ADCs). Bennett KM, Schmainda KM, Bennett RT, Rowe DB, Lu H, Hyde JS. Characterization of continuously distributed cortical water diffusion rates with a stretched-exponential model. Magn Reson Med. 2003;50: 727-734. Toivonen J, Merisaari H, Pesola M, Taimen P, Boström PJ, Pahikkala T, et al. Mathematical models for diffusion-weighted imaging of prostate cancer using b values up to 2000 s/mm2: Correlation with Gleason score and repeatability of region of interest analysis. Magnetic Resonance in Medicine. 2015;74(4):1116-24. Distributed Diffusion Coefficient The anomalous exponent (stretching, alpha) parameter of a stretched-exponential diffusion model. This describes the deviation of the signal attenuation from mono-exponential behavior Bennett KM, Schmainda KM, Bennett RT, Rowe DB, Lu H, Hyde JS. Characterization of continuously distributed cortical water diffusion rates with a stretched-exponential model. Magn Reson Med. 2003;50: 727-734. Toivonen J, Merisaari H, Pesola M, Taimen P, Boström PJ, Pahikkala T, et al. Mathematical models for diffusion-weighted imaging of prostate cancer using b values up to 2000 s/mm2: Correlation with Gleason score and repeatability of region of interest analysis. Magnetic Resonance in Medicine. 2015;74(4):1116-24. Anomalous Exponent Parameter The procedure report is a Radiopharmaceutical Radiation Dose report Radiopharmaceutical Radiation Dose Report Information pertaining to the administration of a radiopharmaceutical Radiopharmaceutical Administration Unique identification of a single radiopharmaceutical administration event. Radiopharmaceutical Administration Event UID Initial signs or symptoms of extravasation Intravenous Extravasation Symptoms The estimated percentage of administered activity lost at the injection site. The estimation includes extravasation, paravenous administration and leakage at the injection site. Estimated Extravasation Activity The calculated activity at the Radiopharmaceutical Start Time when the radiopharmaceutical is administered to the patient. The residual activity (i.e., radiopharmaceutical not administered) , if measured, is reflected in the calculated value. The estimated extravasation is not reflected in the calculated value. Administered activity Radioactivity measurement of radiopharmaceutical before or during the administration. Pre-Administration Measured Activity Radioactivity measurement of radiopharmaceutical after the administration. Post-Administration Measured Activity Registered drug establishment code for product, Coding Scheme example is NDC or RxNorm Drug Product Identifier The human readable identification of the specific radiopharmaceutical dispensed quantity or dose ("dose" as unit of medication delivery, not radiation dose measure) to be administered to the patient. Radiopharmaceutical Dispense Unit Identifier Identifies the vial, batch or lot number from which the individual dispense radiopharmaceutical quantity (dose) is produced. The Radiopharmaceutical Dispense Unit Identifier records the identification for each individual dose. Radiopharmaceutical Lot Identifier Identifies the lot or unit serial number for the reagent component for the radiopharmaceutical. Reagent Vial Identifier Identifies the lot or unit serial number for the radionuclide component for the radiopharmaceutical. Radionuclide Vial Identifier Administered Product's Prescription Number Prescription Identifier Information pertaining to the estimated absorbed radiation dose to an organ. Organ Dose Information The absorbed radiation dose to organ Organ Dose Reference authorityMIRD Pamphlet No.1 (rev) ,Society of Nuclear Medicine, 1976 MIRD Pamphlet 1 Reference authorityICRP, 1988. Radiation Dose to Patients from Radiopharmaceuticals. ICRP Publication 53. Ann. ICRP 18 (1-4). ICRP Publication 53 Reference authorityICRP, 1998. Radiation Dose to Patients from Radiopharmaceuticals (Addendum to ICRP Publication 53). ICRP Publication 80. Ann. ICRP 28 (3). ICRP Publication 80 Reference authorityICRP, 2008. Radiation Dose to Patients from Radiopharmaceuticals - Addendum 3 to ICRP Publication 53. ICRP Publication 106. Ann. ICRP 38 (1-2). ICRP Publication 106 Reference authorityStabin MG, Sparks RB, Crowe E (1994)MIRDOSE: personal computer software for internal dose assessment in nuclear medicine [Computer program] MIRDOSE Reference authorityStabin MG, Sparks RB, Crowe E (2005) OLINDA/EXM: The Second-Generation Personal Computer Software for Internal Dose Assessment in Nuclear Medicine [Computer program] OLINDA-EXM Reference authorityThe reported organ dose is based on radiopharmaceutical's package insert. Package Insert Reference authorityThe reported organ dose is based on Institutionally approved estimates from the Radioactive Drug Research Committee (RDRC) of the institution itself. Institutionally Approved Estimates Reference authorityThe reported organ dose is based on an Investigation new drug. Investigational New Drug The type of device that performed the activity measurement. Activity Measurement Device The device that measures the radiation activity of the radiopharmaceutical Dose Calibrator Radiopharmaceutical Infusion System Infusion System Radioisotope Generator Radioisotope Generator The number hours the patient has gone without food. Fasting Duration The amount of fluids the patient has consumed before the procedure. Hydration Volume A description of physical activity the patient performed before the start of the procedure, such as that which may affect imaging agent biodistribution. Recent Physical Activity Blockage in one of the tubes (ureters) that drain urine from the kidneys Acute unilateral renal blockage 5% or less Thyroid Uptake of Iodine Low Thyroid Uptake 25% or higher Thyroid Uptake of Iodine High Thyroid Uptake The patient exhibits symptoms severe of jaundice and/or has a Bilirubin >10 mg/dL. Severely Jaundiced Extravasation or paravenous administration of the product is visible in the images. Extravasation visible in image The measurement method of the Glomerular Filtration Rate is Cockroft-Gault Formula Cockroft-Gault Formula estimation of GFR The measurement method of the Glomerular Filtration Rate is CKD-EPI Formula CKD-EPI Formula estimation of GFR The measurement method of the Glomerular Filtration Rate is MDRD Glomerular Filtration Rate (MDRD) The measurement method of the Glomerular Filtration Rate is non-black MDRD Glomerular Filtration Rate non-black (MDRD) The measurement method of the Glomerular Filtration Rate is black (MDRD) Glomerular Filtration Rate black (MDRD) The measurement method of the Glomerular Filtration Rate is female (MDRD) Glomerular Filtration Rate female (MDRD) The measurement method of the Glomerular Filtration Rate is Cystatin-based formula Glomerular Filtration Rate Cystatin-based formula The measurement method of the Glomerular Filtration Rate is Creatinine-based formula (Schwartz) Glomerular Filtration Rate Creatinine-based formula (Schwartz) Small body thickness for calcium scoring adjustment. Lateral thickness is measured from skin-to-skin, at the level of the proximal ascending aorta, from an A/P localizer image. Small: < 32.0 cm lateral thickness Medium body thickness for calcium scoring adjustment. Lateral thickness is measured from skin-to-skin, at the level of the proximal ascending aorta, from an A/P localizer image. Medium: 32.0-38.0 cm lateral thickness Large body thickness for calcium scoring adjustment. Lateral thickness is measured from skin-to-skin, at the level of the proximal ascending aorta, from an A/P localizer image. Large: > 38.0 cm lateral thickness A human-readable label identifying an irradiation event. Irradiation Event Label The type of a human-readable label. Label Type A number that identifies a Series. Corresponds to Series Number (0020,0011) of the . Series Number A number that identifies an Acquisition. Corresponds to Acquisition Number (0020,0012) of the . Acquisition Number A number that identifies an Instance. Corresponds to Instance Number (0020,0013) of the . Instance Number Acquisition where the X-Ray source does not move in relation to the patient. Stationary Acquisition Acquisition where the X-Ray source moves laterally in relation to the patient. Stepping Acquisition Acquisition where the X-Ray source moves angularly in relation to the patient. Rotational Acquisition Primary plane of a Biplane acquisition equipment. Plane A Secondary plane of a Biplane acquisition equipment. Plane B Single plane acquisition equipment. Single Plane Continuous X-Ray radiation is applied during an irradiation event. Continuous Pulsed X-Ray radiation is applied during an irradiation event. Pulsed Filter with uniform thickness. Strip filter Filter with variation in thickness from one edge to the opposite edge. Wedge filter Filter with two triangular sections. Butterfly filter Filter with uniform thickness that is for spectral filtering only. Filter out low energy portion of the X-Ray that would only contribute to skin dose, but not to image. Flat filter A polyline defining the outline of a lobulated finding. Outline of lobulations A polyline defining the inner limits of a finding with fuzzy margin. Inner limits of fuzzy margin A polyline defining the outer limits of a finding with fuzzy margin. Outer limits of fuzzy margin A polyline defining the outline of the spiculations of a finding. Outline of spiculations A polyline segment graphically indicating the location and direction of a spiculation of a finding. Linear spiculation A collection of points indicating the pixel locations of the spiculations of a finding. Pixelated spiculations Connected line segments indicating the center of location of a finding on an orthogonal view. Orthogonal location arc Connected line segments indicating the inner margin of the location of a finding on an orthogonal view. Orthogonal location arc inner margin Connected line segments indicating the outer location of a finding on an orthogonal view. Orthogonal location arc outer margin This procedure is intended to gather data that is used for calibration or other quality control purposes. Quality Control Intent true Retired - Replaced by (706342009, SCT, "Phantom"). An artificial subject of an imaging study. Phantom A phantom acceptable for the ACR Computed Tomography Accreditation program. ACR Accreditation Phantom - CT A phantom acceptable for the ACR Magnetic Resonance Imaging Accreditation program. ACR Accreditation Phantom - MR A phantom acceptable for the ACR Mammography Accreditation program. ACR Accreditation Phantom - Mammography A phantom acceptable for the ACR Stereotactic Breast Biopsy Accreditation program. ACR Accreditation Phantom - Stereotactic Breast Biopsy A phantom acceptable for the ACR SPECT Accreditation program (but not for PET). ACR Accreditation Phantom - ECT A phantom acceptable for the ACR PET Accreditation program (but not for SPECT). ACR Accreditation Phantom - PET A SPECT phantom with a PET faceplate acceptable for both the ACR SPECT and PET Accreditation programs. ACR Accreditation Phantom - ECT/PET A PET faceplate (made to fit an existing flangeless or flanged ECT phantom) acceptable for the ACR PET Accreditation program. ACR Accreditation Phantom - PET Faceplate A phantom used for CTDI measurement in head modes according to , Ed.2.1 (Head 16 cm diameter Polymethyl methacrylate PMMA). IEC 160mm Head CT Dosimetry Phantom A phantom used for CTDI measurement in body modes according to , Ed.2.1 (Body 32cm diameter Polymethyl methacrylate PMMA). IEC 320mm Body CT Dosimetry Phantom A phantom in accordance with NEMA standard XR-21-2000. NEMA XR21-2000 Phantom X-Ray Radiation Dose Report. X-Ray Radiation Dose Report X-Ray dose data accumulated over multiple irradiation events. For a study or a performed procedure step. Accumulated X-Ray Dose Data Imaging using a point X-Ray source with a diverging beam projected onto a 2 dimensional detector. Projection X-Ray Entity over which dose accumulation values are integrated. Scope of Accumulation X-Ray dose data for a single Irradiation Event. Irradiation Event X-Ray Data true Retired - Replaced by (767776000, SCT, "Niobium") Material containing Niobium or a Niobium compound Niobium or Niobium compound true Retired - Replaced by (767775001, SCT, "Europium") Material containing Europium or a Europium compound Europium or Europium compound Describes the method used to derive the calibration factor. Calibration Protocol Denotes the type of irradiation event recorded. Irradiation Event Type Total calculated Dose Area Product (in the scope of the including report). Dose Area Product Total Last calibration DateTime for the integrated dose meter or dose calculation. Calibration DateTime Individual or organization responsible for calibration. Calibration Responsible Party Total Dose related to Reference Point (RP). (in the scope of the including report). Dose (RP) Total Total calculated Dose Area Product applied in Fluoroscopy Modes (in the scope of the including report). Fluoro Dose Area Product Total Total calculated Dose Area Product applied in Acquisition Modes (in the scope of the including report). Acquisition Dose Area Product Total Dose applied in Fluoroscopy Modes, related to Reference Point (RP). (in the scope of the including report). Fluoro Dose (RP) Total Dose applied in Acquisition Modes, related to Reference Point (RP). (in the scope of the including report). Acquisition Dose (RP) Total Total accumulated clock time of Fluoroscopy in the scope of the including report (i.e., the sum of the Irradiation Duration values for accumulated fluoroscopy irradiation events). Total Fluoro Time Accumulated Count of exposure pulses (single or multi-frame encoded) created from irradiation events performed with high dose (acquisition). Total Number of Radiographic Frames Mode of application of X-Rays during Fluoroscopy. Fluoro Mode Applied X-Ray Tube voltage at peak of X-Ray generation, in kilovolts; Mean value if measured over multiple peaks (pulses). KVP Mean value of applied Tube Current. X-Ray Tube Current true Retired - Replaced by (113824, DCM, "Exposure Time"). Cumulative time the patient has received X-Ray exposure during the irradiation event Exposure Time Mean value of X-Ray Current Time product. Exposure Distance to the Reference Point (RP) defined according to IEC 60601-2-43 or equipment defined. Distance Source to Reference Point Dose applied at the Reference Point (RP). Dose (RP) Positioner Primary Angle at the end of an irradiation event. For further definition see (112011, DCM, "Positioner Primary Angle"). Positioner Primary End Angle Positioner Secondary Angle at the end of an irradiation event. For further definition see (112012, DCM, "Positioner Secondary Angle"). Positioner Secondary End Angle Clock time from the start of loading time of the first pulse until the loading time trailing edge of the final pulse in the same irradiation event.Loading time is defined in IEC 60601-1-3:2008, 3.37, and described in IEC 60601-2-54:2009, 203.4.101.3. Irradiation Duration Orientation of the Patient with respect to Gravity. Patient Orientation Enhances or modifies the Patient orientation specified in Patient Orientation. Patient Orientation Modifier Orientation of the Patient with respect to the Head of the Table. Patient Table Relationship Distance from the X-Ray Source to the Equipment C-Arm Isocenter.(Center of Rotation). Distance Source to Isocenter Measured or calculated distance from the X-Ray source to the detector plane in the center of the beam. Distance Source to Detector Table Longitudinal Position with respect to an arbitrary reference chosen by the equipment. Table longitudinal motion is positive towards the left of the patient assuming the patient is positioned HEAD FIRST SUPINE. See . Table Longitudinal Position Table Lateral Position with respect to an arbitrary reference chosen by the equipment. Table lateral motion is positive towards the head of the patient assuming the patient is positioned HEAD FIRST. See . Table Lateral Position Table Height Position with respect to an arbitrary chosen reference by the equipment in (mm). Table motion downwards is positive. Table Height Position Angle of the head-feet axis of the table in degrees relative to the horizontal plane. Positive values indicate that the head of the table is upwards. See . Table Head Tilt Angle Rotation of the table in the horizontal plane (clockwise when looking from above the table). See . Table Horizontal Rotation Angle Angle of the left-right axis of the table in degrees relative to the horizontal plane. Positive values indicate that the left of the table is upwards. See . Table Cradle Tilt Angle X-Ray absorbing material used in the filter. X-Ray Filter Material The minimum thickness of the X-Ray absorbing material used in the filters. X-Ray Filter Thickness Minimum Table Longitudinal Position at the end of an irradiation event. Table Longitudinal End Position Table Lateral Position at the end of an irradiation event. Table Lateral End Position Table Height Position at the end of an irradiation event. Table Height End Position Uncertainty of the 'actual' value. Calibration Uncertainty Identification of Acquisition Plane with Biplane systems. Acquisition Plane Nominal Size of Focal Spot of X-Ray Tube. Focal Spot Size Average X-Ray Tube Current averaged over time for pulse or for continuous Fluoroscopy. Average X-Ray Tube Current Number of pulses applied by X-Ray systems during an irradiation event (acquisition run or pulsed fluoro). Number of Pulses Unique identification of a single irradiation event. Irradiation Event UID Angle of the X-Ray beam in degree relative to an orthogonal axis to the detector plane. Column Angulation Devices used to modify the energy or energy distribution of X-Rays. X-Ray Filters Type of filter(s) inserted into the X-Ray beam. Wedges. X-Ray Filter Type The maximum thickness of the X-Ray absorbing material used in the filters. X-Ray Filter Thickness Maximum System provided definition of the Reference Point used for Dose calculations. Reference Point Definition Distance between the collimator blades in pixel column direction as projected at the detector plane. Collimated Field Height Distance between the collimator blades in pixel row direction as projected at the detector plane. Collimated Field Width Collimated field area at image receptor. Area for compatibility with IEC 60601-2-43. Collimated Field Area Pulse rate applied by equipment during Fluoroscopy. Pulse Rate Measured or calculated distance from the X-Ray source to the table plane in the center of the beam. Distance Source to Table Plane (Average) X-Ray pulse width. Pulse Width Calibrated device to perform dose measurements. Dose Measurement Device Image acquired during a specified event. Acquired Image Effective Dose evaluation from the product of Dose Length Product (DLP) and the Effective Dose Conversion Factor (E/DLP in units of mSv/mGy-cm), where the ratio is derived by means of Monte Carlo computations. DLP to E conversion via MC computation Effective Dose evaluation from the product of the Mean CTDIfreeair and the ratio E/CTDIfreeair (mSv/mGy), where the ratio is derived by means of Monte Carlo computations. CTDIfreeair to E conversion via MC computation Effective Dose evaluation from the product of Dose Length Product (DLP) and the Effective Dose Conversion Factor (E/DLP in units of mSv/mGy-cm), where the ratio is derived by means of dosimetric measurements with an anthropomorphic phantom. DLP to E conversion via measurement Effective Dose evaluation from the product of the Mean CTDIfreeair and the ratio E/CTDIfreeair (mSv/mGy), where the ratio is derived by means of dosimetric measurements with an anthropomorphic phantom. CTDIfreeair to E conversion via measurement The CT acquisition was performed by acquiring single or multi detector data while rotating the source about the gantry while the table is not moving. Additional slices are acquired by incrementing the table position and again rotating the source about the gantry while the table is not moving. Sequenced Acquisition The CT acquisition was performed by holding the source at a constant angle and moving the table to obtain a projection image. Localizer. Constant Angle Acquisition The CT acquisition was performed by holding the table at a constant position and acquiring multiple slices over time at the same location. Stationary Acquisition The CT acquisition was performed while rotating the source about the gantry while the table movement is under direct control of a human operator or under the control of an analysis application. Fluoro. Free Acquisition Reference authority1990 Recommendations of the International Commission on Radiological Protection (ICRP Publication 60, published as the Annals of the ICRP Vol. 21, No. 1-3, Pergamon Press,1991). ICRP Pub 60 Start DateTime of the first X-Ray Irradiation Event of the accumulation within a Study. Start of X-Ray Irradiation End DateTime of the last X-Ray Irradiation Event of the accumulation within a Study. End of X-Ray Irradiation X-Ray dose accumulated over multiple CT irradiation events. For a study or a performed procedure step. CT Accumulated Dose Data Total number of events during the defined scope of accumulation. Total Number of Irradiation Events The total dose length product for the defined scope of accumulation. CT Dose Length Product Total The total Effective Dose at the defined scope of accumulation. CT Effective Dose Total Identification of the reference-patient model used when Effective Dose is evaluated via Monte Carlo calculations or from a Dose Length Product conversion factor based on Monte Carlo calculations. Patient Model References the physical phantom and the type of dosimeter used when measurements are done to establish Effective Dose Conversion Factors (E/DLP) or ratios E/CTDIfreeair. Condition Effective Dose measured Type of Effective Dose phantom used. Effective Dose Phantom Type Type of dosimeter used. Dosimeter Type General description of the CT Irradiation event. CT Acquisition Method of the CT acquisition. CT Acquisition Type Thickness of an equivalent filter in mm in Aluminum. X-Ray Filter Aluminum Equivalent General description of the acquisition parameters. CT Acquisition Parameters Number of X-Ray sources. Number of X-Ray Sources Total time the patient has received X-Ray exposure during the irradiation event. Exposure Time For Spiral scanning, the scanning length is the table travel in mm during the tube loading, adjusted for dynamic collimation if applicable. In the case of Spiral scanning with dynamic collimation, one may approximate scanning length as the FWHM along a line perpendicular to the tomographic plane at isocenter of the free-in-air dose profile for the entire scan.For Sequenced scanning, the scanning length is the table travel between consecutive scans times the number of scans.For Stationary and Free scanning, the scanning length is the nominal width of the total collimation.For Shuttle Mode scanning, the scanning length is the nominal width of the total collimation plus the distance between the two scanning positions.Scanning Length might be longer than the programmed acquisition length (Length of Reconstructable Volume) Scanning Length The value of the nominal width referenced to the location of the isocenter along the z axis of a single row of acquired data in mm. Nominal Single Collimation Width The value of the nominal width referenced to the location of the isocenter along the z axis of the total collimation in mm over the area of active X-Ray detection. Nominal Total Collimation Width For Spiral scanning: Pitch Factor = (Table Feed per Rotation (mm)) /(Nominal Total Collimation Width (mm))For Sequenced scanning: Pitch Factor = (Table Feed per single Sequenced scan (mm)) /(Nominal Total Collimation Width (mm)). Pitch Factor General description of CT dose values. CT Dose "Mean CTDIvol" refers to the average value of the CTDIvol associated with this acquisition. Mean CTDIvol Identification, tube-potential, tube-current, and exposure-time parameters associated with an X-Ray source during an acquisition. CT X-Ray Source Parameters Identifies the particular X-Ray source (in a multi-source CT system) for which the set of X-Ray source parameter values is reported. Identification of the X-Ray Source Maximum X-Ray tube current. Maximum X-Ray Tube Current The exposure time for one rotation of the source around the object in s. Exposure Time per Rotation A label describing the type of phantom used for CTDIw measurement. CTDIw Phantom Type The CTDIfreeair Calculation Factor is the CTDIfreeair per mAs, expressed in units of mGy/mAs. The CTDIfreeair Calculation Factor may be used in one method calculating Dose. CTDIfreeair Calculation Factor The average value of the free-in-air CTDI associated with this acquisition. Mean CTDIfreeair Dose Length Product (DLP), expressed in mGy-cm, is an index characterizing the product of the CTDIvol and the length scanned.For Spiral scanning, DLP = CTDIvol ✕ Scanning Length.For Sequenced scanning, DLP = CTDIvol ✕ Table Travel Between Consecutive Scans ✕ Number of Scans.For Stationary and Free scanning, DLP = CTDIvol ✕ Nominal Total Collimation Width.For Shuttle Mode scanning, DLP = CTDIvol ✕ (Nominal Total Collimation Width + Distance Between the Two Scan Positions) DLP Effective dose in mSv. Effective Dose Effective Dose per DLP, reference value for Effective Dose calculation, expressed in mSv/mGY.cm. Effective Dose Conversion Factor Effective Dose Reference authority2007 Recommendations of the International Commission on Radiological Protection (ICRP Publication 103, published as the Annals of the ICRP Vol. 37, No. 2-4, Elsevier, 2007). ICRP Pub 103 The type of exposure modulation used for the purpose of limiting the dose. X-Ray Modulation Type Measure of the detector response to radiation in the relevant image region of an image acquired with a digital X-Ray imaging system as defined in IEC 62494-1. Exposure Index The target value used to calculate the Deviation Index as defined in IEC 62494-1. Target Exposure Index A scaled representation of the accuracy of the Exposure Index compared to the Target Exposure Index as defined in IEC 62494-1. Deviation Index The clinician responsible for determining that the irradiating procedure was appropriate for the indications. Irradiation Authorizing The person responsible for the administration of radiation. Irradiation Administering An irradiation event is the loading of X-Ray equipment caused by a single continuous actuation of the equipment's irradiation switch, from the start of the loading time of the first pulse until the loading time trailing edge of the final pulse. Any automatic on-off switching of the irradiation source during the event is not treated as separate events, rather the event includes the time between start and stop of irradiation as triggered by the user. A pulsed fluoro X-Ray acquisition shall be treated as a single irradiation event. Irradiation Event true Retired - Replaced by (113769, DCM, "Irradiation Event UID") Unique Identifier of an Irradiation Event. Irradiation Event UID Method by which dose-related details of an Irradiation Event were obtained. Source of Dose Information Total accumulated acquisition clock time in the scope of the including report (i.e., the sum of the Irradiation Duration values for accumulated acquisition irradiation events). Total Acquisition Time Direct recording of data by a relevant system. Automated Data Collection Recording of data by a human operator, including manual transcription of electronic data. Manual Entry The data is taken from an MPPS SOP Instance. MPPS Content A device exposing a patient to ionizing radiation. Irradiating Device 15cm from the isocenter towards the X-Ray source; See IEC 60601-2-43. 15cm from Isocenter toward Source 30cm in front (towards the tube) of the input surface of the image receptor; See FDA Federal Performance Standard for Diagnostic X-Ray Systems §1020.32(d) (3). 30cm in Front of Image Input Surface 1cm above the patient tabletop or cradle; See FDA Federal Performance Standard for Diagnostic X-Ray Systems §1020.32(d) (3). 1cm above Tabletop 30cm above the patient tabletop of cradle; See FDA Federal Performance Standard for Diagnostic X-Ray Systems §1020.32(d) (3). 30cm above Tabletop 15cm from the centerline of the X-Ray table and in the direction of the X-Ray source; See FDA Federal Performance Standard for Diagnostic X-Ray Systems §1020.32(d) (3). 15cm from Table Centerline 4.2cm from the breast support surface in the direction orthogonal to the support surface. This point represents the entrance point for radiation to a standard 4.2cm thick compressed breast.See Department of Health and Human Services, Food and Drug Administration. Mammography quality standards; final rule. Federal Register. Oct. 28, 1997; 68(208):55852-55994. 4.2cm above Breast Support Surface The data is copied from information present in the image Attributes. Dose Attributes such as CTDIvol (0018,9345). Copied From Image Attributes The data is computed from information present in the image Attributes. By using dosimetry information for the specific irradiating device make and model, applied to technique information such as KVP and mAs. Computed From Image Attributes The data is derived from human-readable reports. By natural language parsing of text reports, or optical character recognition from reports saved as images by the irradiating device. Derived From Human-Readable Reports The name of a specific person. Person Name An identification number or code for a specific person. Person ID The organization that issued a Person ID. Person ID Issuer The name of an organization. Organization Name The role played by a person in an organization. Person Role in Organization The role played by a person in a procedure. Person Role in Procedure The role played by a device in a procedure. Device Role in Procedure The name used to refer to a device; usually locally unique. Device Name Manufacturer of a device. Device Manufacturer Model Name of a device. Device Model Name Serial Number of a device. Device Serial Number All planes of a multi-plane acquisition equipment. All Planes The length from which images may be reconstructed (i.e., excluding any overranging performed in a spiral acquisition that is required for data interpolation).Value is distinct from (1113825, DCM, "Scanning Length"), which includes any overranging and any effects from dynamic collimation. Also distinct from any actual Reconstructed Volume, which may depend on the slice thickness chosen for a particular reconstruction. Length of Reconstructable Volume The Z location that is the top (highest Z value) of the Reconstructable Volume. Specified as the Z component within the Patient Coordinate System defined by a specified Frame of Reference. Top Z Location of Reconstructable Volume The Z location that is the bottom (lowest Z value) of the Reconstructable Volume. Specified as the Z component within the Patient Coordinate System defined by a specified Frame of Reference. Bottom Z Location of Reconstructable Volume The Z location that is the top (highest Z value) of the scanning length. Specified as the Z component within the Patient Coordinate System defined by a specified Frame of Reference. Top Z Location of Scanning Length The Z location that is the bottom (lowest Z value) of the scanning length. Specified as the Z component within the Patient Coordinate System defined by a specified Frame of Reference. Bottom Z Location of Scanning Length The range along the z axis of the total volume irradiated, per , Ed. 3, 203.115(b).The start and stop of loading corresponding to the outer edge of the full width half maximum of the free-in-air dose profile for the beam collimation used. Exposed Range Report section about cumulative dose alerts during an examination. Dose Check Alert Details Flag denoting whether a DLP Alert Value was configured. DLP Alert Value Configured Flag denoting whether a CTDIvol Alert Value was configured. CTDIvol Alert Value Configured Cumulative Dose Length Product value configured to trigger an alert. DLP Alert Value Cumulative CTDIvol value configured to trigger an alert. CTDIvol Alert Value A forward estimate of the accumulated DLP plus the estimated DLP for the next Protocol Element Group. Accumulated DLP Forward Estimate A forward estimate at a given location of the accumulated CTDIvol plus the estimated CTDIvol for the next Protocol Element Group. Accumulated CTDIvol Forward Estimate Reason provided for proceeding with a procedure that is projected to exceed a configured dose value. Reason for Proceeding Report section about dose notifications during a protocol element. Dose Check Notification Details Flag denoting whether a DLP Notification Value was configured. DLP Notification Value Configured Flag denoting whether a CTDIvol Notification Value was configured. CTDIvol Notification Value Configured Dose Length Product value configured to trigger a notification for a given protocol element. DLP Notification Value CTDIvol value configured to trigger a notification for a given protocol element. CTDIvol Notification Value A forward estimate of the DLP for the next Protocol Element Group. DLP Forward Estimate A forward estimate of the CTDIvol for the next Protocol Element Group. CTDIvol Forward Estimate Flag denoting whether alternative dose alert behavior has been active for CT guided interventional procedure according to the NEMA Dose Check Standard . Alternative dose alert behavior active The amount of ionizing radiation to which the patient was exposed. Radiation Exposure true Retired - Replaced by (440252007, SCT, "Administration of radiopharmaceutical"). Type, amount and route of radioactive substance administered. Radioactive Substance Administered true Retired - Replaced by (73569-6, LN, "Radiation Exposure and Protection Information") Exposure to ionizing radiation and associatedpreventive measures used to reduce the exposure of parts of the body like lead apron or eye, thyroid gland or gonad protection. Radiation Exposure and Protection Information The Size-Specific Dose Estimate is a patient dose estimate that takes into account the size of the patient, such as described in or . Size Specific Dose Estimate The side-to-side (left to right) dimension of the body part being scanned (per ). Measured Lateral Dimension The thickness of the body part being scanned, in the antero-posterior dimension (per ). Measured AP Dimension The diameter of the patient at a given location along the Z-axis of the patient, assuming that the patient has a circular cross-section (per ). Derived Effective Diameter The Size Specific Dose Estimate is computed using Table 1B (32cm phantom) or Table 2B (16cm phantom) of . AAPM 204 Lateral Dimension The Size Specific Dose Estimate is computed using Table 1C (32cm phantom) or Table 2C (16cm phantom) of . AAPM 204 AP Dimension The Size Specific Dose Estimate is computed using Table 1A (32cm phantom) or Table 2A (16cm phantom) of . AAPM 204 Sum of Lateral and AP Dimension The Size Specific Dose Estimate is computed using Table 1D (32cm phantom) or Table 2D (16cm phantom) using an effective diameter estimated from the patient's age using Table 3 of . AAPM 204 Effective Diameter Estimated From Patient Age Values calculated from other existing parameters. System Calculated A segmented region of the detector surface within the irradiated area (but might not be near the center of the detector). In Detector Plane A device that creates digital images from X-Ray detectors (Direct, Indirect or Storage). X-Ray Reading Device Parameters related to the X-Ray source (generator, tube, etc) are available to the recording application. X-Ray Source Data Available Parameters related to the X-Ray Mechanical System (Stand, Table) are available to the recording application. X-Ray Mechanical Data Available Parameters related to the X-Ray Detector are available to the recording application. X-Ray Detector Data Available Describes the radiographic method of patient, tube and detector positioning to achieve a well described projection or view. Projection Eponymous Name Type of Detector used to acquire data. Images. Detector Type Detector that directly transforms the input signal to pixel values. Direct Detector Detector that transforms an intermediate signal into pixel values. A scintillator-based detector. Indirect Detector Storage detector that stores a signal that is later transformed by a reader into pixel values. A phosphor-based detector. Storage Detector Film that is scanned to create pixel values. Film The cassette/detector is mounted in the patient table. Table Mount The cassette/detector is not mounted.. A cassette placed underneath the patient. Unmounted Detector The cassette/detector is mounted in an upright stand. Upright Stand Mount The cassette/detector is mounted on a c-arm. C-Arm Mount Method of mounting or positioning a CR/DR cassette or detector. CR/DR Mechanical Configuration An integrated projection radiography system capable of fluoroscopy. Fluoroscopy-Guided Projection Radiography System A projection radiography system where the X-Ray detector, X-Ray Source and gantry components are integrated and the managing system is able to access details of each component. Integrated Projection Radiography System A projection radiography system where the X-Ray detector, X-Ray Source and gantry components are not integrated. Cassette-based CR and DR systems. Cassette-based Projection Radiography System Description of the algorithm used when reconstructing the image from the data acquired during the acquisition process. Reconstruction Algorithm An algorithm for reconstructing an image from multiple projections by back-projecting the measured values along the line of the projection and filtering the result to reduce blurring. Filtered Back Projection An algorithm for reconstructing an image from multiple projections by starting with an assumed reconstructed image, computing projections from the image, comparing the original projection data and updating the reconstructed image based upon the difference between the calculated and the actual projections. Iterative Reconstruction A point at the surface of the patient within the irradiated area where the X-Ray beam enters the patient (i.e. towards the tube). At Surface of Patient 100cm from the X-Ray source along the central ray of the X-Ray beam. 100cm from X-Ray Source The period of time from the start of a Procedure Step until the time point established by the context of the reference. Procedure Step To This Point The diameter of a cylinder of water having the same X-Ray attenuation as the patient for a specified reconstructed slice (e.g., as described in ). Water Equivalent Diameter The Water Equivalent Diameter is a value at a single location sufficiently representative of the body region. Water Equivalent Diameter Representative Value The Water Equivalent Diameter integrates values for a sample of reconstructed slices across the entire scan range. Water Equivalent Diameter Integrated Across Scan Range The Water Equivalent Diameter value is derived from Raw Data rather than reconstructed slices.See . Water Equivalent Diameter From Raw Data The Water Equivalent Diameter value is derived from a Localizer image.See . Water Equivalent Diameter From Localizer Unique identifier of the Series or Instance(s) used for Water Equivalent Diameter estimation, whether it be a Series of reconstructed single slice images or one or more Enhanced Multi-frame images or a Raw Data Series or Instance. Series or Instance used for Water Equivalent Diameter estimation The Z location used for Water Equivalent Diameter estimation at a single location whether it be computed using a reconstructed slice or Localizer or Raw Data. Specified as the Z component within the Patient Coordinate System defined by a specified Frame of Reference. Z value of location of Water Equivalent Diameter estimation A report describing methods of calculation of diameters of cylinders of water having the same X-Ray attenuation as reconstructed CT slices of patients described in . AAPM 220 The Size Specific Dose Estimate is calculated from a single Water Equivalent Diameter value using a conversion factor as described in . Estimated from Water Equivalent Diameter The Size Specific Dose Estimate is an arithmetic average of SSDE(z), calculated from Dw(z) at several z-positions over the reconstruction length. The z-positions may or may not correspond to reconstructed slices. See . Arithmetic Average of SSDE(z) The Water Equivalent Diameter is an arithmetic average of Dw(z) at several z-positions over the reconstruction length. The z-positions may or may not correspond to reconstructed slices. See . Arithmetic Average of Dw(z) The a and b coefficients of an exponential function as described in . The function generates a conversion factor based on a Water Equivalent Diameter value (Dw). Multiplying the Dw value by the conversion factor produces a Size Specific Dose Estimate. Dw Conversion Factor Coefficients The Water Equivalent Diameter is derived from reconstructed images that do not cover the full FOV. Water Equivalent Diameter From Limited FOV Images Estimate of the average absorbed dose to the material contained in an axial plane at longitudinal position z of the object scanned. See . Size Specific Dose Estimate At Longitudinal Position Z The patient relative longitudinal position at which other value(s) have been estimated. Longitudinal Position Z Diameter of a cylinder of water having the same averaged absorbed dose as the material contained in an axial plane at longitudinal position z of the object scanned, calculable for a material of any composition, and quantifying the attenuation of any material in terms of the attenuation of water. See . Water Equivalent Diameter At Longitudinal Position Z Measurement not available: Not a number (per IEEE 754). Not a number Measurement not available: Negative Infinity (per IEEE 754). Negative Infinity Measurement not available: Positive Infinity (per IEEE 754). Positive Infinity Measurement not available: Divide by zero (per IEEE 754). Divide by zero Measurement not available: Underflow (per IEEE 754). Underflow Measurement not available: Overflow (per IEEE 754). Overflow Measurement not available: Measurement failure. Measurement failure Measurement not available: Measurement not attempted. Measurement not attempted Measurement not available: Calculation failure. Calculation failure Measurement not available: Value out of range. Value out of range Measurement not available: Value unknown. Value unknown Measurement not available: Value indeterminate. Value indeterminate Measures the time-of-flight of a light signal between the camera and the subject for each point of the image. Time of flight Interferometry is a family of techniques in which waves are superimposed in order to extract depth information about the scanned object. Interferometry Laser scanning describes the general method to sample or scan a surface using laser technology. Laser scanning Projecting a narrow band of light onto a three-dimensionally shaped surface produces a line of illumination that appears distorted from other perspectives than that of the projector. It can be used for an exact geometric reconstruction of the surface shape. Pattern projection A technique for estimating the surface normal of an object by observing that object under different lighting conditions. Shape from shading A technique for estimating the surface normal of an object by observing that object under different motions. Shape from motion An optical imaging technique used to increase optical resolution and contrast of a micrograph by using point illumination and a spatial pinhole to eliminate out-of-focus light in specimens that are thicker than the focal plane. It enables the reconstruction of 3D structures from the obtained images. Confocal imaging Point cloud that was calculated by an algorithm. Point Cloud Algorithmic Scanning the object from different views by placing it on a rotating table. Turntable Scan Method Higher resolution with a longer acquisition time. High resolution Lower resolution with a shorter acquisition time. Fast mode An algorithm employed to minimize the difference between two clouds of points. It iteratively revises the transformation (translation, rotation) needed to minimize the distance between the points of two point clouds. Iterative Closest Point Human controlled minimization of the distance between the points of two point clouds. Freehand Scanning the object from different views by placing it in front of a checkerboard pattern. Checkerboard Description in free form text describing the device. Device Description Unique Device Identifiers (UDIs) of the entire equipment. Unique Device Identifiers Type of source for observations quoted from an external source. Quotation Mode Reference to external source of quoted observations. Quoted Source Documentary source of quoted observations. Document Verbal source of quoted observations. Verbal Type of observer that created the observations. Observer Type Human observer created the observations. Person Automated device created the observations. Device Name of human observer that created the observations. Person Observer Name Organization or institution with which the human observer is affiliated for the context of the current observation. Person Observer's Organization Name Organizational role of human observer for the context of the current observation. Person Observer's Role in the Organization Procedural role of human observer for the context of the current observation. Person Observer's Role in this Procedure Unique identifier of automated device that created the observations. Device Observer UID Institution-provided identifier of automated device that created the observations. Device Observer Name Manufacturer of automated device that created the observations. Device Observer Manufacturer Manufacturer-provided model name of automated device that created the observations. Device Observer Model Name Manufacturer-provided serial number of automated device that created the observations. Device Observer Serial Number Location of automated device that created the observations whilst the observations were being made. Device Observer Physical Location During Observation Unique identifier for the Study or Requested Procedure. Procedure Study Instance UID Unique identifier for the Performed Procedure Step. Procedure Study Component UID Identifier for the Order (or Service Request) assigned by the order placer system. Placer Number Identifier for the Order (or Service Request) assigned by the order filler system. Filler Number A departmental Information System generated number that identifies the Imaging Service Request. Accession Number Type of procedure scheduled or performed. Procedure Code Type of observation subject. Subject Class A patient is the subject of observations. Patient Fetus of patient is the subject of observations. Fetus Specimen is the subject of observations. Specimen Unique Identifier of patient or fetus who is the subject of observations. Subject UID Name of patient who is the subject of observations. Subject Name Identifier of patient or fetus who is the subject of observations. Subject ID Birth Date of patient who is the subject of observations. Subject Birth Date Sex of patient who is the subject of observations. Subject Sex Age of patient who is the subject of observations. Subject Age Species of patient who is the subject of observations. Subject Species The breed of the subject. Subject Breed Name of mother of fetus that is the subject of observations. Mother of fetus true Retired - Replaced by (11951-1, LN, "Fetus ID"). Fetus number true Retired - Replaced by (55281-0, LN, "Number of Fetuses"). Number of Fetuses Unique Identifier of specimen that is the subject of observations. Specimen UID true Retired Accession Number of specimen that is the subject of observations Specimen Accession Number Identifier of specimen that is the subject of observations. Specimen Identifier true Retired - Replaced by (371439000, SCT, "Specimen Type") Coded category of specimen that is the subject of observations Specimen Type true Retired - Replaced by (111700, DCM, "Specimen Container Identifier") Identifier of specimen microscope slide that is the subject of observations Slide Identifier true Retired Unique Identifier of specimen microscope slide that is the subject of observations Slide UID The language of the content, being a language that is primarily used for human communication. English, French. Language The country-specific variant of language. Canada for Candadian French. Country of Language The language of the value component of a name-value pair. Language of Value The language of both the name component and the value component of a name-value pair. Language of Name and Value The language of the current Content Item (node in a tree of content) and all its descendants. Language of Content Item and Descendants A precoordinated coded concept or text meaning for the name component of a name-value pair that is equivalent to the post-coordinated meaning conveyed by the coded name and its concept modifier children. Equivalent Meaning of Concept Name A precoordinated coded concept or text meaning for the value component of a name-value pair that is equivalent to the post-coordinated meaning conveyed by the coded value and its concept modifier children. Equivalent Meaning of Value Whether or not the property concept being modified is present or absent. Presence of property true Retired - Replaced by (52101004, SCT, "Present") Present true Retired - Replaced by (272519000, SCT, "Absent") Absent A set of points on an image, that when connected by line segments, provide a polyline from which a linear measurement was inferred. Path A set of points on an image, that when connected by line segments, provide a closed polyline that is the border of a defined region from which an area, or two-dimensional measurement, was inferred. Area outline A set of points on an image, that when connected by line segments, provide a closed polyline that is a two-dimensional border of a three-dimensional region's intersection with, or projection into the image. Perimeter outline The imaging procedure whose results are reported. Procedure reported true Retired - Replaced by (373068000, SCT, "Undetermined") Presence or absence of a property is undetermined Presence Undetermined true Retired - Replaced by (11329-0, LN, "History") History Manufacturer-provided Class UID(s) of device that created the observations. Device Observer Manufacturer Class UID true Retired - Replaced by (55115-0, LN, "Request") Request true Retired - Replaced by (55111-9, LN, "Current Procedure Descriptions") Current Procedure Descriptions A description of the imaging procedure. Procedure Description true Retired - Replaced by (55114-3, LN, "Prior Procedure Descriptions") Prior Procedure Descriptions true Retired - Replaced by (18834-2, LN, "Previous Findings") Previous Findings An observation found on a prior imaging study. Previous Finding true Retired - Replaced by (59776-5, LN, "Findings") Findings An observation found on an imaging study. Finding true Retired - Replaced by (19005-8, LN, "Impressions") Impressions An interpretation in the clinical context of the finding(s) on an imaging study. Impression true Retired - Replaced by (18783-1, LN, "Recommendations") Recommendations A recommendation for management or investigation based on the findings and impressions of an imaging study. Recommendation true Retired - Replaced by (55110-1, LN, "Conclusions") Conclusions An interpretation in the clinical context of the finding(s) on an imaging study. Conclusion true Retired - Replaced by (55107-7, LN, "Addendum") Addendum true Retired - Replaced by (C1442488, UMLS, "Baseline" Initial images used to establish a beginning condition that is used for comparison over time to look for changes. [Paraphrases NCI-PT (C1442488, UMLS, "Baseline"), which is defined as "An initial measurement that is taken at an early time point to represent a beginning condition, and is used for comparison over time to look for changes. For example, the size of a tumor will be measured before treatment (baseline) and then afterwards to see if the treatment had an effect. A starting point to which things may be compared."] Baseline A selection of composite instances that best illustrates a particular finding. An image slice at the location of the largest extent of a tumor. Best illustration of finding true Retired - Replaced by (309343006, SCT, "Physician") Physician true Retired - Replaced by (106292003, SCT, "Nurse") Nurse true Retired - Replaced by (159016003, SCT, "Radiologic Technologist") Technologist true Retired - Replaced by (159016003, SCT, "Radiographer") Radiographer true Retired - Replaced by (C1144859, UMLS, "Intern") Intern true Retired - Replaced by (405277009, SCT, "Resident") Resident true Retired - Replaced by (158971006, SCT, "Registrar") Registrar A medical practitioner undergoing sub-specialty training. During the period after specialty training (residency). Fellow true Retired - Replaced by (405279007, SCT, "Attending") Attending [Consultant] true Retired - Replaced by (415506007, SCT, "Scrub nurse") Scrub nurse true Retired - Replaced by (304292004, SCT, "Surgeon") Surgeon A medical practitioner with sub-specialty training in Ultrasound. Sonologist true Retired - Replaced by (C1954848, UMLS, "Sonographer") Sonographer The person responsible for performing the procedure. Performing true Retired - Replaced by (C1709880, UMLS, "Referring physician"). The person responsible for referring the patient for the procedure. Referring The person responsible for requesting the procedure. Requesting The person responsible for recording the procedure or observation. Recording The person responsible for verifying the recorded procedure or observation. Verifying The person responsible for assisting with the procedure. Assisting true Retired - Replaced by (413854007, SCT, "Circulating Nurse"). The person responsible for making preparations for and monitoring the procedure. Circulating The person responsible for standing by to assist with the precedure if required. Standby Other sex. Other sex Sex of subject undetermined at time of encoding. Undetermined sex Ambiguous sex. Ambiguous sex true Retired - Replaced by (C2985483, UMLS, "Radiation Physicist"). Radiation Physicist. Radiation Physicist Comment. Comment true Retired - Replaced by (18785-6, LN, "Indications for Procedure") Indications for Procedure Indications for Procedure true Retired - Replaced by (55108-5, LN, "Patient Presentation") Patient condition at the beginning of a healthcare encounter Patient Presentation true Retired - Replaced by (55112-7, LN, "Summary") Summary of a procedure, including most significant findings Summary Image or waveform used as source for measurement. Source of Measurement true Retired - Replaced by (55109-3, LN, "Complications") Complications from a procedure Complications Physician who performed a procedure. Performing Physician Summary of patient condition upon Discharge from a healthcare facility. Discharge Summary Proximal Anatomic Location for a differential measurement; may be considered subtype of term (363698007, SCT, "Finding Site"). Distance or pressure gradient. Proximal Finding Site Distal Anatomic Location for a differential measurement; may be considered subtype of term (363698007, SCT, "Finding Site"). Distance or pressure gradient. Distal Finding Site Patient Characteristics (findings). Patient Characteristics Time-stamped record of events that occur during a catheterization procedure. Cath Lab Procedure Log Room identification. Room identification Equipment identification. Equipment Identification A recorded Patient Status or an event involving a patient. Patient Status or Event Identification of a step, action, or phase of a procedure. Procedure Action Item ID DateTime of Recording of an Entry in an Event Log. DateTime of Recording of Log Entry SOP Instance UID of a Performed Procedure Step. Performed Procedure Step SOP Instance UID SOP Class UID of a Performed Procedure Step. Performed Procedure Step SOP Class UID Duration of a step, action, or phase of a procedure. Procedure Action Duration Beginning of a step, action, or phase of a procedure. Start Procedure Action End of a step, action, or phase of a procedure. End Procedure Action Suspension of a step, action, or phase of a procedure. Suspend Procedure Action Resumption of a step, action, or phase of a procedure. Resume Procedure Action Concept modifier for the DateTime of Recording of an Entry in an Event Log. Observation DateTime Qualifier Recorded DateTime had its source in a system clock not synchronized to other recorded DateTimes. DateTime Unsynchronized Recorded DateTime is estimated. DateTime Estimated Event of the acquisition of an image. Image Acquired Type of device, process or method used to acquire or derive data. Modality Number of Frames in a multi-frame image. Number of Frames Descriptor of an Image. Image Type Duration of the acquisition of an image or a waveform. Acquisition Duration Event of the acquisition of an image. Waveform Acquired Document Title. Document Title Description of Material used in a procedure. Description of Material Quantity of Material used in a procedure. Quantity of Material Billing Code for materials used in a procedure. Billing Code Unit or Device Serial Identifier. Unit Serial Identifier Lot Identifier. Lot Identifier Vendor or local coded value identifying a device. Device Code Identification of a Lesion observed during an imaging procedure. Lesion Identifier Person administering drug/contrast. Person administering drug/contrast Assessment of the risk a coronary lesion presents to the health of a patient. Lesion Risk Identifier for an attempted Intervention. Intervention attempt identifier Use of a device to deploy another device. Deployment Action of a clinical professional at the site of percutaneous access to a patient's cardiovascular system. Percutaneous Entry Action The action or event of beginning circulatory support for a patient. Begin Circulatory Support The action or event of ending circulatory support for a patient. End Circulatory Support Rate of Oxygen Administration. Oxygen Administration Rate The action or event of beginning administration of oxygen to a patient. Begin Oxygen Administration The action or event of ending administration of oxygen to a patient. End oxygen administration Method of administration of oxygen to a patient by ventilator. Oxygen Administration by ventilator The action or event of assessing the clinical status of a patient. Patient Assessment Performed The action or event of beginning pacing support for a patient. Begin Pacing The action or event of ending pacing support for a patient. End Pacing The action or event of beginning ventilation support for a patient. Begin Ventilation The action or event of ending ventilation support for a patient. End Ventilation Procedural note originated by a technologist. Tech Note Procedural note originated by a nurse. Nursing Note Procedural note originated by a Physician. Physician Note General procedural note. Procedure Note true Retired - Replaced by (55113-5, LN, "Key Images") List of references to images considered significant Key Images List of references to DICOM SOP Instances. DICOM Object Catalog Individual frames selected as a subset of a multi-frame image. Referenced Frames Segment selected as a subset of a segmentation image, specifically the pixels/voxels identified as belonging to the classification of the identified segment. Referenced Segment A device is the subject of observations. Device Subject Name or other identifier of a device that is the subject of observations. Device Subject Name Manufacturer of a device that is the subject of observations. Device Subject Manufacturer Model Name of a device that is the subject of observations. Device Subject Model Name Serial Number of a device that is the subject of observations. Device Subject Serial Number Physical Location of a device that is the subject of observations during those observations. Device Subject Physical Location during observation Unique Identifier of a device that is the subject of observations. Device Subject UID Illustration of a region of interest. Illustration of ROI true Retired - Replaced by (121056, DCM, "Area Outline"). Area Outline true Retired - Replaced by (131184002, SCT, "Area of defined region"). Area of Defined Region A one dimensional, or linear, numeric measurement between two points or features. Distance Vertical measurement value. Height Distance between marks on a device of calibrated size. A ruler. Inter-Marker Distance true Retired - Replaced by (121055, DCM, "Path"). Path A one dimensional, or linear, numeric measurement along a polyline. Path length true Retired - Replaced by (121057, DCM, "Perimeter Outline"). Perimeter Outline Frame selected from a segmentation image, specifically the pixels/voxels identified as belonging to the classification of the segment encompassing the identified frame. Referenced Segmentation Frame A three-dimensional numeric measurement that is approximate, based on a two-dimensional region in a single image. Volume estimated from single 2D region A three-dimensional numeric measurement that is approximate, based on three or more non-coplanar two-dimensional image regions. Volume estimated from three or more non-coplanar 2D regions A three-dimensional numeric measurement that is approximate, based on two non-coplanar two-dimensional image regions. Volume estimated from two non-coplanar 2D regions A three-dimensional numeric measurement of the bounding region of a three-dimensional region of interest in an image set. Volume of bounding three dimensional region A three-dimensional numeric measurement of the bounding sphere of a three-dimensional region of interest in an image set. Volume of circumscribed sphere A three-dimensional numeric measurement of an ellipsoid shaped three-dimensional region of interest in an image set. Volume of ellipsoid A three-dimensional numeric measurement of a sphere shaped three-dimensional region of interest in an image set. Volume of sphere A line segment that is an arm of a pair of arms that defines an angle, whether or not those line segments share a common vertex. Arm of angle The angle on an AP radiograph of the pelvis between a line drawn parallel to the acetabular roof and a line drawn horizontally through the inferior aspect of both triradiate cartilages (Hilgenreiner's line). Used to evaluate developmental dysplasia of the hip. Acetabular angle An entity that has both a magnitude and a direction. Vector The approximate geometric location on an image or in space where an entity is located. Intended for use when it is known that the source of the information, such as a crude hand-drawn pointer, is in the neighborhood of the entity, but is not expected to be accurate. Approximate spatial location The length of that part of a line (a straight object having no curvature) that is bounded by two distinct end points and contains every point on the line between those two end points, including both of the two end points. Derived from https://​en.wikipedia.org/​wiki/​Line_(geometry)#​Line_segment. Line segment length Coordinates of a point on a defined path. Path Vertex Surface of an identified or measured volume. Volume Surface Series of image instances used as source data for a segmentation. Source series for segmentation Image instances used as source data for a segmentation. Source image for segmentation Indicates the location of the area of interest as measured from the nipple of the breast. Distance from nipple Indicates the location of the area of interest as measured from the most direct skin point of the breast. Distance from skin Indicates the location of the area of interest as measured from the chest wall. Distance from chest wall Patient exposure to ionizing radiation (procedure). Patient exposure to ionizing radiation The act of communicating actionable findings to a responsible receiver. Results communicated Reference is to a Doppler waveform acquired simultaneously with an image. Simultaneous Doppler Reference is to a Hemodynamic waveform acquired simultaneously with an image. Simultaneous Hemodynamic Reference is to a ECG waveform acquired simultaneously with an image. Simultaneous ECG Reference is to a voice narrative recording acquired simultaneously with an image. Simultaneous Voice Narrative A waveform representing chest expansion and contraction due to respiratory activity, measured simultaneously with the acquisition of this Image. Simultaneous Respiratory Waveform Arterial pulse waveform obtained simultaneously with acquisition of a referencing image. Simultaneous Arterial Pulse Waveform Phonocardiographic waveform obtained simultaneously with acquisition of a referencing image. Simultaneous Phonocardiographic Waveform The referenced instance is an RT treatment plan of some type, which contains treatment positioning information, which has been verified using the information in the referencing instance. The referenced Instance typically will be an RT Plan, RT Ion Plan or RT Radiation Set. RT treatment plan for the position being verified Image providing an anatomical reference on the patient under examination, for the purpose of defining the location of the ensuing imaging. Localizer Image providing an anatomical reference on the patient under examination, for the purpose of planning or documenting a biopsy. Biopsy localizer Image providing a partial view of the target anatomy, when the target anatomy is too large for a single image. Other partial views Image providing a view of the target anatomy in a different imaging plane, typically from a near perpendicular angle. Other image of biplane pair Image providing a view of the target anatomy in a different imaging plane, typically with a small angular difference. Other image of stereoscopic pair Image related to a non-image information object. Images related to standalone object Image where signals are identified and separated according to their frequencies. To identify individual chemicals, or individual nuclei in a chemical compound. Spectroscopy MR spectroscopy data acquired to correct the phase of the diagnostic data for the phase signal of the Water. Spectroscopy Data for Water Phase Correction An image that has not already been lossy compressed that is used as the source for creation of a lossy compressed image. Uncompressed predecessor Image used as the mask for an image processing operation, such as subtraction. Mask image for image processing operation Image used as the source for an image processing operation. Source image for image processing operation Series used as the source for an image processing operation. Source series for image processing operation Image used as the source for a derived or compressed image. Source Image Image encoded with a lossy compression transfer syntax. Lossy compressed image SOP Instance encoded with a different SOP Class but otherwise equivalent data. Alternate SOP Class instance Full fidelity image, uncompressed or lossless compressed. Full fidelity image Image encoded with a different photometric interpretation. Alternate Photometric Interpretation image Image used as a source for a montage (stitched) image. Source image for montage An image that has previously been lossy compressed that is used as the source for creation of another lossy compressed image. Lossy compressed predecessor HL7 Document Architecture (CDA) Document that contains clinical content equivalent to the referencing Instance. Equivalent CDA Document Instance that contains a displayable complete rendering of the referencing Instance. Complete Rendering for Presentation Instance that contains a displayable partial rendering of the referencing Instance. Partial Rendering for Presentation Instance that contains a displayable complete rendering of the referencing Instance, plus additional content such as inline rendering of referenced images. Extended Rendering for Presentation Document whose content has been wholly or partially transformed to create the referencing document. Source Document Image showing structural anatomic features. Anatomic image Image showing physical or chemical activity. Functional image Image providing the same view of the target anatomy acquired using only a specific imaging wavelength, frequency or energy. Spectral filtered image Image providing an anatomical reference on the patient under examination, for the purpose of documenting the location of device such as a diagnostic or therapeutic catheter. Device localizer Image providing a graphic view of the distribution of radiation dose. Dose Image The referenced image is the source of spatially-related frames from which the referencing 3D volume data was derived. Acquisition frames corresponding to volume 3D Volume containing the spatially-related frames in the referencing instance. Volume corresponding to spatially-related acquisition frames Instance acquired prior to the referencing instance in a set of consecutively acquired instances. Temporal Predecessor Instance acquired subsequent to the referencing instance in a set of consecutively acquired instances. Temporal Successor Image of the same target area at lower resolution acquired in the same acquisition process. Same acquisition at lower resolution Image of the same target area at higher resolution acquired in the same acquisition process. Same acquisition at higher resolution Image of the same target area at different focal depth (Z-plane) acquired in the same acquisition process. Same acquisition at different focal depth Image of the same target area at different spectral band acquired in the same acquisition process. Same acquisition at different spectral band Image specifically targeting the container label. Imaged container label Source image from which FOR PRESENTATION images were created. For Processing predecessor The reference is to a predecessor report that has been replaced by the current report. Replaced report The reference is to a predecessor report to which the current report provides an addendum. Addended report A report that precedes the final report and may contain only limited information; it may be time sensitive, and it is not expected to contain all the reportable findings. Preliminary report A report that is not complete. Partial report The dose object created was calculated by summation of existing, previously calculated, RT Dose instances. Composed from prior doses The dose object created was calculated by summation of existing, previously calculated, RT Dose instances and dose newly calculated by the application. The newly calculated dose may or may not exist as an independent object. Composed from prior doses and current plan RT Dose Instances used as source for calculated dose. Source dose for composing current dose An assessment of the dose delivery parameters performed before treatment. RT Pre-Treatment Dose Check An assessment of consistency with a previously quality-assured treatment plan performed before treatment. RT Pre-Treatment Consistency Check The basis of the assessment was a comparison object. Assessment By Comparison The basis of the assessment was a set of rules on expected values, ranges and relationships. Assessment By Rules The dose object created was calculated using previously calculated RT Dose Instances by taking radiobiological effects into account. Composed with radiobiological effects The dose object was calculated based on weighted contributions along the actual number of fractions delivered. Composed with weighting for fractions delivered Concentration of the chemically or physically interesting (active) ingredient of a drug or contrast agent as delivered in product form from the manufacturer, typically in mg/ml. Active Ingredient Undiluted Concentration X-Ray absorption of the active ingredient of a contrast agent ingredient is greater than the absorption of water (tissue). Contrast/Bolus Ingredient Opaque Number of units of substance administered to a patient. Tablets. Quantity administered Mass of substance administered to a patient. Mass administered Human readable label of the radiotherapy plan. RT Plan Label The index of the fraction of the radiotherapy plan to be delivered. Current Fraction Number The total number of prescribed radiotherapy fractions. Number of Fractions Planned The number of fully completed radiotherapy fractions of the radiotherapy plan to be delivered. Partially completed fractions are not included. Number of Fractions Completed Whether or not the patient has been checked-in, i.e., are physically present and are waiting to be called in to the treatment room. Checked-In Status The referenced beam number within the radiotherapy plan to be delivered. Referenced Beam Number Method of deriving or calculating a measured value. Mean, or maximum of set. Derivation Assessment of a measurement relative to a normal range of values; may be considered subtype of term (363713009, SCT, "has interpretation"). Normality Significance of a measurement. Level of Significance Status of selection of a measurement for further processing or use. Selection Status Description of a population of measurements. Population description Bibliographic or clinical reference for a Description of a population of measurements. Reference Authority Description of a normal range of values for a measurement concept. Normal Range description Bibliographic or clinical reference for a Description of a normal range of values. Normal Range Authority Observation value selected by user for further processing or use, or as most representative. User chosen value Observation value is the recently obtained, and has been selected for further processing or use. Most recent value chosen Observation value is the mean of several measurements, and has been selected for further processing or use. Mean value chosen Standard deviation of a measurement in a reference population. Standard deviation of population Percentile Ranking of an observation value with respect a reference population. Percentile Ranking of measurement Z-score of an observation value with respect a reference population, expressed as the dimensionless quantity (x-m) /s, where (x-m) is the deviation of the observation value (x) from the population mean (m), and s is the standard deviation of the population. Z-Score of measurement 2 Sigma deviation of a measurement in a reference population. 2 Sigma deviation of population Formula used to compute a derived measurement. Equation Bibliographic reference to a formula used to compute a derived measurement; reference may be to a specific equation in a journal article. Equation Citation Bibliographic reference to a Table of Values used to look up a derived measurement. Table of Values Citation Bibliographic reference to a method used to compute a derived measurement. Method Citation A Table of Values used to look up a derived measurement. Table of Values Factor (divisor or multiplicand) for normalizing a measurement. Body surface area used for normalizing hemodynamic measurements. Index true Retired - Replaced by (414135002, SCT, "Estimated") Measurement obtained by observer estimation, rather than with a measurement tool or by calculation Estimated true Retired - Replaced by (258090004, SCT, "Calculated") Measurement obtained by calculation Calculated Identified issue about a state or process that has the potential to require intervention or management. Concern DateTime concern noted (noted by whom is determined by context of use). DateTime Concern Noted DateTime the concern was resolved. DateTime Concern Resolved DateTime the problem was resolved. DateTime Problem Resolved Place at which healthcare services may be provided. Service Delivery Location Identification of a healthcare provider who performed a healthcare service; may be either a person or an organization. Service Performer Type or identifier of a medical device used on, in, or by a patient. Medical Device Used true Retired - Replaced by (428813002, SCT, "Pharmacologic and exercise stress test") Cardiac stress test using pharmacologic and exercise stressors Pharmacologic and exercise stress test true Retired - Replaced by (428685003, SCT, "Stress test using cardiac pacing") Cardiac stress test using an implanted or external cardiac pacing device Paced stress test true Retired - Replaced by (428613004, SCT, "Correction of congenital cardiovascular deformity") Procedure for correction of congenital cardiovascular deformity Correction of congenital cardiovascular deformity Process of placing patient in the anticipated treatment position, including specification and location of positioning aids, and other treatment delivery accessories. RT Patient Setup Acquisition of patient positioning information, using single-plane megavoltage imaging. RT Patient Position Acquisition, single plane MV Acquisition of patient positioning information, using dual-plane megavoltage imaging. RT Patient Position Acquisition, dual plane MV Acquisition of patient positioning information, using single-plane kilovoltage imaging. RT Patient Position Acquisition, single plane kV Acquisition of patient positioning information, using dual-plane kilovoltage imaging. RT Patient Position Acquisition, dual plane kV Acquisition of patient positioning information, using dual-plane combination kilovoltage and megavoltage imaging. RT Patient Position Acquisition, dual plane kV/MV Acquisition of patient positioning information, using kilovoltage CT imaging.This code encompasses both Cone-Beam CT and conventional CT. RT Patient Position Acquisition, CT kV Acquisition of patient positioning information, using megavoltage CT imaging.This code encompasses both Cone-Beam CT and conventional CT. RT Patient Position Acquisition, CT MV Acquisition of patient positioning information, using optical imaging. RT Patient Position Acquisition, Optical Acquisition of patient positioning information, using ultrasound imaging. RT Patient Position Acquisition, Ultrasound Acquisition of patient positioning information, using spatial fiducials. RT Patient Position Acquisition, Spatial Fiducials Registration of intended and actual patient position prior to treatment delivery, using single-plane images. RT Patient Position Registration, single plane Registration of intended and actual patient position prior to treatment delivery, using dual-plane images. RT Patient Position Registration, dual plane Registration of intended and actual patient position prior to treatment delivery, using 3D CT images and an unspecified registration approach. RT Patient Position Registration, 3D CT general Registration of intended and actual patient position prior to treatment delivery, using 3D CT images and a marker-based registration approach. RT Patient Position Registration, 3D CT marker-based Registration of intended and actual patient position prior to treatment delivery, using 3D CT images and a volume-based registration approach. RT Patient Position Registration, 3D CT volume-based Registration of intended and actual patient position prior to treatment delivery, using 3D verification images and 2D reference images. RT Patient Position Registration, 3D on 2D reference Registration of intended and actual patient position prior to treatment delivery, using 2D verification images and 3D reference images. RT Patient Position Registration, 2D on 3D reference Registration of intended and actual patient position prior to treatment delivery, using optical images. RT Patient Position Registration, Optical Registration of intended and actual patient position prior to treatment delivery, using ultrasound images. RT Patient Position Registration, Ultrasound Registration of intended and actual patient position prior to treatment delivery, using spatial fiducials. RT Patient Position Registration, Spatial Fiducials Adjustment of patient position such that the patient is correctly positioned for treatment. RT Patient Position Adjustment Review of patient positioning information in the process of delivering a treatment session. RT Patient Position In-treatment-session Review Simulated radiotherapy treatment delivery using verification integral to the Treatment Delivery System. RT Treatment Simulation with Internal Verification Simulated radiotherapy treatment delivery using verification by a external Machine Parameter Verifier. RT Treatment Simulation with External Verification Radiotherapy treatment delivery using verification integral to the Treatment Delivery System. RT Treatment with Internal Verification Radiotherapy treatment delivery using verification by a external Machine Parameter Verifier. RT Treatment with External Verification Quality assurance of a radiotherapy treatment delivery using verification integral to the Treatment Delivery System. RT Treatment QA with Internal Verification Quality assurance of a radiotherapy treatment delivery using verification by a external Machine Parameter Verifier. RT Treatment QA with External Verification Quality assurance of a Treatment Delivery Device. RT Machine QA Perform Quality Assurance on an RT Plan by evaluating dosimetric content of the current RT Plan. RT Treatment QA by RT Plan Dose Check Perform Quality Assurance on an RT Plan by comparing the content of previously quality-assessed RT Plans with the current RT Plan. RT Treatment QA by RT Plan Difference Check Perform Quality Assurance on an RT Ion Plan by evaluating dosimetric content of the current RT Ion Plan. RT Treatment QA by RT Ion Plan Dose Check Perform Quality Assurance on an RT Ion Plan by comparing the content of previously quality-assessed RT Ion Plans by the current RT Ion Plan. RT Treatment QA by RT Ion Plan Difference Check Brachytherapy Treatment Delivery. RT Brachy Treatment Radiotherapy image-guided patient positioning and treatment delivery using verification integral to the Treatment Delivery System. RT Image-Guided Patient Positioning and Treatment Delivery Acquisition of radiotherapy patient positioning information, using magnetic resonance imaging. RT Patient Position Acquisition, MR Registration of intended and actual patient position prior to treatment delivery, using MR images and an unspecified registration approach. RT Patient Position Registration, MR Indicates whether the treatment to be delivered is a complete fraction or a continuation of previous incompletely treated fraction. Treatment Delivery Type Patient called to procedure room. Patient called to procedure room Patient admitted to procedure room. Patient admitted to procedure room Patient given pre-procedure instruction. Patient given pre-procedure instruction Patient informed consent given. Patient informed consent given Patient advance directive given. Patient advance directive given Nil Per Os (NPO) status confirmed. Nil Per Os (NPO) status confirmed Patient assisted to table. Patient assisted to table Patient prepped and draped. Patient prepped and draped Patient connected to continuous monitoring. Patient connected to continuous monitoring Patient transferred to holding area. Patient transferred to holding area Patient transferred to surgery. Patient transferred to surgery Patient transferred to CCU. Patient transferred to CCU Patient disoriented. Patient disoriented Patient reports nausea. Patient reports nausea Patient reports discomfort. Patient reports discomfort Patient reports chest pain. Patient reports chest pain Patient reports no pain. Patient reports no pain Patient alert. Patient alert Patient restless. Patient restless Patient sedated. Patient sedated Patient asleep. Patient asleep Patient unresponsive. Patient unresponsive Patient has respiratory difficulty. Patient has respiratory difficulty Patient coughed. Patient coughed Patient disconnected from continuous monitoring. Patient disconnected from continuous monitoring Hemostasis achieved. Hemostasis achieved Hemostasis not achieved - oozing. Hemostasis not achieved - oozing Hemostasis not achieved - actively bleeding. Hemostasis not achieved - actively bleeding Patient given post-procedure instruction. Patient given post-procedure instruction Patient discharged from department or laboratory. Patient discharged from department Patient pronounced dead. Patient pronounced dead Patient transferred to morgue. Patient transferred to morgue Identified personnel or staff arrived in procedure room. Personnel Arrived Identified personnel or staff departed procedure room. Personnel Departed Page sent to identified personnel or staff. Page Sent To Consultation with identified personnel or staff. Consultation With Office of identified personnel or staff was called. Office called true Retired - Replaced by (110501, DCM, "Equipment failure") Equipment failure Equipment failure Equipment brought to procedure room. Equipment brought to procedure room Equipment ready for procedure. Equipment ready Equipment removed from procedure room. Equipment removed Device for obtaining biopsy sample. Bioptome Valvular Intervention. Valvular Intervention Aortic Intervention. Aortic Intervention Septal Defect Intervention. Septal Defect Intervention Vascular Intervention. Vascular Intervention Myocardial biopsy. Myocardial biopsy Arterial conduit angiography. Arterial conduit angiography Single plane Angiography. Single plane Angiography Bi-plane Angiography. Bi-plane Angiography Percutaneous Coronary Intervention. Percutaneous Coronary Intervention true Retired - Replaced by (429163003, SCT, "15-Lead ECG") 15-Lead electrocardiography 15-Lead ECG Log of events occurring prior to the current procedure. Pre-procedure log Analysis or measurements for current procedure (purpose of reference to evidence document). Current procedure evidence Prior report for current patient. Prior report for current patient Identifier of Consumable taken from inventory. Consumable taken from inventory Identifier of Consumable returned to inventory. Consumable returned to inventory Identifier of consumable whose remaining content has been disposed. Remaining consumable disposed Identifier of Consumable determined to be unusable. Consumable unusable Identifier of Drug whose administration has started. Drug start Identifier of Drug whose administration has ended. Drug end Identifier of Drug administered as part of procedure. Drug administered Identifier of Contrast agent whose administration has started. Contrast start Identifier of Contrast agent whose administration has ended. Contrast end Identifier of Contrast agent administered. Contrast administered Identifier of Infusate whose administration has started. Infusate start Identifier of Infusate whose administration has ended. Infusate end Action of a device traversing a vascular lesion. Device crossed lesion Action of a clinical professional performed on a patient for therapeutic purpose. Intervention Action Volume of Drug, Contrast agent, or Infusate administered. Volume administered Undiluted dose of Drug, Contrast agent, or Infusate administered. Undiluted dose administered Concentration of Drug, Contrast agent, or Infusate administered. Concentration Rate of Drug, Contrast agent, or Infusate administration. Rate of administration Duration of Drug, Contrast agent, or Infusate administration. Duration of administration Volume of Drug, Contrast agent, or Infusate unadministered or discarded. Volume unadministered or discarded Numeric parameter of Curvature of Catheter. Catheter Curve Transmit Frequency. Transmit Frequency Measured change of patient electrocardiographic ST level relative to baseline measurement. ST change from baseline Anatomic term modifier indicating aneurysm on cited vessel is the subject of the finding. Aneurysm on cited vessel Anatomic term modifier indicating proximal section of graft to cited vessel is the subject of the finding. Graft to cited segment, proximal section Anatomic term modifier indicating mid section of graft to cited vessel is the subject of the finding. Graft to cited segment, mid section Anatomic term modifier indicating distal section of graft to cited vessel is the subject of the finding. Graft to cited segment, distal section DateTime of Intervention. DateTime of Intervention Duration of Intervention. Duration of Intervention true Retired - Replaced by (408715008, SCT, "Lumen Diameter Stenosis"), post-coordinated with (128955008, SCT, "Baseline Phase") Lesion stenosis measured prior to any interventional procedure Baseline Stenosis Measurement true Retired - Replaced by (408715008, SCT, "Lumen Diameter Stenosis"), post-coordinated with (128960007, SCT, "Post-intervention Phase") Lesion stenosis measured after an interventional procedure Post-Intervention Stenosis Measurement Assessment of perfusion across a coronary lesion measured prior to any interventional procedure. Baseline TIMI Flow Assessment of perfusion across a coronary lesion measured after an interventional procedure. Post-Intervention TIMI Flow Indication that device is the primary (first and/or most significant) device used for interventional therapy of a particular pathology. Lesion. Primary Intervention Device Normal Myocardium. Normal Myocardium Scarred Myocardium. Scarred Myocardium Thinning Myocardium. Thinning Myocardium Hemodynamics Report. Hemodynamics Report Atrial pressure measurements, report section. Atrial pressure measurements Ventricular pressure measurements, report section. Ventricular pressure measurements Gradient assessment, report section. Gradient assessment Blood velocity measurements, report section. Blood velocity measurements Blood lab measurements, report section. Blood lab measurements Derived Hemodynamic Measurements, report section. Derived Hemodynamic Measurements Clinical Context, report section. Clinical Context Location from which the patient was transferred. Patient Transferred From Indication that the procedure includes a percutaneous coronary intervention. PCI during this procedure Radiation dose times area of exposure. Dose Area Product Finding of probability and/or severity of thrombus. Degree of Thrombus Severity of Calcification, property of lesion. Severity of Calcification Lesion Morphology; form and/or structural properties of lesion. Lesion Morphology Vessel Morphology; form and/or structural properties of vessel. Vessel Morphology Technique (device or procedure) of support for patient circulatory system; hemodynamic support. Circulatory Support Reason for Study. Reason for Study Indication that the current study data has been compared with prior study data. Comparison with Prior Study Done Electrocardiographic electrode placement technique. Electrode Placement Acquisition Device Type. Acquisition Device Type Acquisition Device ID. Acquisition Device ID Quantitative Analysis, report section. Quantitative Analysis Qualitative Analysis, report section. Qualitative Analysis The date and time on which a procedure was performed on a patient. Procedure DateTime Clinical Interpretation, report section. Clinical Interpretation ECG Lead Identifier. Lead ID Beat Number; ordinal of cardiac cycle within an acquisition. Beat Number Complex coded semantic unit, consisting of several coded components. Compound Statement Trend (temporal progression) of a clinical condition, finding, or disease. Trend Coded semantic unit. Statement Coded modifier for a semantic unit. Statement Modifier Conjunctive term between semantic units. Conjunctive Term Probability. Probability ECG Global Measurements, report section. ECG Global Measurements ECG Lead Measurements, report section. ECG Lead Measurements Derived cross-sectional area of a vessel or anatomic feature, other than a cardiac valve. Derived Non-Valve Area Rate of blood flow through Pulmonary artery. Pulmonary Flow Rate of blood flow through the aorta. Systemic Flow DateTime of patient discharge from hospital admission. Discharge DateTime Indication that a Coronary Artery Bypass operation was performed during the current hospital admission. Coronary Artery Bypass During This Admission DateTime of Death. DateTime of Death Indication that the patient died during the current hospital admission. Death During This Admission Indication that the patient died during the current Catheterization procedure. Death During Catheterization Finding of type of Myocardial Infarction. Type of Myocardial Infarction Finding of Coronary lesion with greater than 50% stenosis. Coronary lesion > = 50% stenosis Finding of Acute Myocardial Infarction Presence as indication for interventional procedure. Acute MI Present DateTime of first determination of elevated ECG ST segment, as indication of Myocardial Infarction. ST Elevation Onset DateTime Number of lesion interventions attempted during current procedure. Number of lesion interventions attempted Number of lesion interventions successful during current procedure, where the residual post intervention stenosis is less than or equal to 50% of the arterial luminal diameter, TIMI Flow is 3 and the minimal decrease in stenosis was 20%. Number of lesion interventions successful Overall success of interventional procedure. Procedure Result Lesion Intervention Information, report section. Lesion Intervention Information Indication that Myocardial Infarction occurred during current procedure. Peri-procedural MI occurred Creatine Kinase-MB value at baseline (start of procedure). CK-MB baseline Creatine Kinase-MB highest value measured during procedure. CK-MB peak Time interval between ECG R-wave peaks in subsequent cardiac cycles. R-R interval Blood temperature. Blood temperature Blood Oxygen content. Blood Oxygen content Blood Carbon dioxide saturation. Blood Carbon dioxide saturation Pulmonary Arterial Content (FCpa). Pulmonary Arterial Content (FCpa) Pulmonary Venous Content (FCpv). Pulmonary Venous Content (FCpv) Max dp/dt/P. Max dp/dt/P Ventricular End Diastolic pressure. Ventricular End Diastolic pressure Elapsed time from injection of an indicator bolus until it is observed at another location. Indicator appearance time Maximum pressure acceleration. Maximum pressure acceleration Ventricular Systolic blood pressure. Ventricular Systolic blood pressure Pulse Strength; palpable strength of systolic flow. Pulse Strength The secondary peak pressure in the atrium during atrial contraction. C wave pressure Gradient pressure, average. Gradient pressure, average Gradient pressure, peak. Gradient pressure, peak Pressure at dp/dt max. Pressure at dp/dt max Diastolic blood velocity, mean. Diastolic blood velocity, mean Diastolic blood velocity, peak. Diastolic blood velocity, peak Systolic blood velocity, mean. Systolic blood velocity, mean Systolic blood velocity, peak. Systolic blood velocity, peak Blood velocity, mean. Blood velocity, mean Blood velocity, minimum. Blood velocity, minimum Blood velocity, peak. Blood velocity, peak Venous or atrial pressure minimum during ventricular systole, after A-wave. x-descent pressure Venous or atrial pressure minimum when tricuspid valve opens during diastole, after V-wave. y-descent pressure Atrial pressure upon closure of tricuspid and mitral valves. z-point pressure Left Ventricular ejection time. Left Ventricular ejection time Left Ventricular filling time. Left Ventricular filling time Right Ventricular ejection time. Right Ventricular ejection time Right Ventricular filling time. Right Ventricular filling time Total Pulmonary Resistance. Total Pulmonary Resistance Total Vascular Resistance. Total Vascular Resistance Coronary Flow reserve. Coronary Flow reserve Diastolic/Systolic velocity ratio. Diastolic/Systolic velocity ratio Hyperemic ratio. Hyperemic ratio Hemodynamic Resistance Index. Hemodynamic Resistance Index Thorax diameter, sagittal. Thorax diameter, sagittal Environmental characteristics in the procedure room. Procedure Environmental Characteristics Oxygen concentration in the procedure room. Room oxygen concentration Temperature in the procedure room. Room temperature Barometric pressure in the procedure room. Room Barometric pressure Left to Right Flow. Left to Right Flow Right to Left Flow. Right to Left Flow Arteriovenous oxygen content difference. Arteriovenous difference Framingham Study 10 Year CHD Risk. 10 Year CHD Risk Framingham Study Comparative Average10 Year CHD Risk. Comparative Average10 Year CHD Risk Framingham Study Comparative Low10 Year CHD Risk. Comparative Low10 Year CHD Risk Framingham Study LDL Cholesterol Score Sheet for Men. LDL Cholesterol Score Sheet for Men Framingham Study LDL Cholesterol Score Sheet for Women. LDL Cholesterol Score Sheet for Women Framingham Study Total Cholesterol Score Sheet for Men. Total Cholesterol Score Sheet for Men Framingham Study Total Cholesterol Score Sheet for Women. Total Cholesterol Score Sheet for Women Corrected Sinus Node Recovery Time. Corrected Sinus Node Recovery Time Max volume normalized to 50mmHg pulse pressure. Max volume normalized to 50mmHg pulse pressure Oxygen Consumption. Oxygen Consumption Body Surface Area computed from patient height and weight: BSA = 0.003207*WT[g]^(0.7285-0.0188​​*log(WT[g]))*HT[cm]^0.3 [Boyd E, The growth of the surface area of the human body. Minneapolis: University of Minnesota Press, 1935, eq. (36) ]. BSA = 0.003207*WT^(0.7285-0.0188​*log(WT))*HT^0.3 Body Surface Area computed from patient height and weight: BSA = 0.007184*WT[kg]^0.425​*HT[cm]^0.725 [Dubois and Dubois, Arch Int Med 1916 17:863-71]. BSA = 0.007184*WT^0.425​*HT^0.725 Body Surface Area computed from patient height and weight: BSA = 0.0235*WT[kg]^0.51456​​*HT[cm]^0.42246[Gehan EA, George SL, 'Estimation of human body surface area from height and weight', Cancer Chemother Rep 1970 54:225-35]. BSA = 0.0235*WT^0.51456​*HT^0.42246 Body Surface Area computed from patient height and weight: BSA = 0.024265*WT[kg]^0.5378​*HT[cm]^0.3964[Haycock G.B., Schwartz G.J., Wisotsky D.H. 'Geometric method for measuring body surface area: A height weight formula validated in infants, children and adults.' The Journal of Pediatrics 1978 93:1:62-66]. BSA = 0.024265*WT^0.5378​*HT^0.3964 Body Surface Area computed from patient height and weight: BSA = (HT[m]*WT[kg]/36)^0.5[Mosteller, R.D. 'Simplified Calculation of Body Surface Area.' N Engl J Med 1987 Oct 22;317(17):1098]. BSA = (HT*WT/36)^0.5 Body Surface Area computed from patient weight:BSA = 1321 + 0.3433 * WT[kg] (for pediatrics 3-30 kg) [Current, J.D. 'A Linear Equation For Estimating The Body Surface Area In Infants And Children', The Internet Journal of Anesthesiology. 1998. 2:2]. BSA = 1321+0.3433*WT BSA = 0.0004688*(1000*WT)^(0.8168-0.0154​*log(1000*WT))Where (WT is weight in kilogram)Units = m2Boyd, Edith. The Growth of the Surface Area of the Human Body(originally published in 1935 by the University of Minnesota Press), Greenwood Press, Westport, Connecticut, 1975, p. 102.Equation (35). BSA = 0.0004688*WT^(0.8168-0.0154​*log(WT)) Equation for estimated oxygen consumption: VO2male = BSA (138.1 - 11.49 * loge(age) + 0.378 * HRf). VO2male = BSA (138.1 - 11.49 * loge(age) + 0.378 * HRf) Equation for estimated oxygen consumption: VO2female = BSA (138.1 - 17.04 * loge(age) + 0.378 * HRf). VO2female = BSA (138.1 - 17.04 * loge(age) + 0.378 * HRf) Equation for estimated oxygen consumption: VO2 = VeSTPD * 10 * (FIO2 - FE02). VO2 = VeSTPD * 10 * (FIO2 - FE02) Equation for estimated oxygen consumption: VO2 = 152 * BSA. VO2 = 152 * BSA Equation for estimated oxygen consumption: VO2 = 175 * BSA. VO2 = 175 * BSA Equation for estimated oxygen consumption: VO2 = 176 * BSA. VO2 = 176 * BSA Robertson & Reid Table for estimated oxygen consumption. Robertson & Reid table Fleisch table for estimated oxygen consumption. Fleisch table Boothby table for estimated oxygen consumption. Boothby table Estimate of Oxygen partial pressure at 50% saturation for premature infants less than 3 days old: P50 = 19.9. if (prem age< 3days) P50 = 19.9 Estimate of Oxygen partial pressure at 50% saturation for infants less than 1 day old: P50 = 21.6. if (age < 1day) P50 = 21.6 Estimate of Oxygen partial pressure at 50% saturation for infants less than 30 days old: P50 = 24.6. if (age < 30day) P50 = 24.6 Estimate of Oxygen partial pressure at 50% saturation for patients less than 18 years old: P50 = 27.2. if (age < 18y) P50 = 27.2 Estimate of Oxygen partial pressure at 50% saturation for patients less than 40 years old: P50 = 27.4. if (age < 40y) P50 = 27.4 Estimate of Oxygen partial pressure at 50% saturation for patients more than 60 years old: P50 = 29.3. if (age > 60y) P50 = 29.3 Cardiac valve area computed from flow and pressure gradient: Area = Flow / 44.5 * sqrt(Gradient[mmHg]) [Gorlin and Gorlin, Am Heart J, 1951]. Area = Flow / 44.5 * sqrt(Gradient[mmHg]) Mitral valve area computed from flow and pressure gradient: Mitral valve Area = Flow / 38.0 * sqrt(Gradient[mmHg]) [Gorlin and Gorlin, Am Heart J, 1951]. MVA = Flow / 38.0 * sqrt(Gradient[mmHg]) Body Mass Index computed from weight and height: BMI = Wt/Ht^2. BMI = Wt / Ht ^ 2 Body Surface Area computed from patient height and weight: BSA = 0.007358*WT[kg]^0.425​*HT[cm]^0.725(for East Asian adult, aged 15+ years) [Kanai Izumi, Masamitsu Kanai, 'Clinical examination method summary']. BSA = 0.007358*WT^0.425​*HT^0.725 Body Surface Area computed from patient height and weight: BSA = 0.010265*WT[kg]^0.423​*HT[cm]^0.651 (For East Asian child aged 12-14 years). BSA = 0.010265*WT^0.423​*HT^0.651 Body Surface Area computed from patient height and weight: BSA = 0.008883*WT[kg]^0.444​*HT[cm]^0.663 (For East Asian child aged 6-11 years). BSA = 0.008883*WT^0.444​*HT^0.663 Body Surface Area computed from patient height and weight: BSA = 0.038189*WT[kg]^0.423​*HT[cm]^0.362 (For East Asian child aged 1-5 years). BSA = 0.038189*WT^0.423​*HT^0.362 Body Surface Area computed from patient height and weight: BSA = 0.009568*WT[kg]^0.473​*HT[cm]^0.655 (For East Asian child aged 0-12 months). BSA = 0.009568*WT^0.473​*HT^0.655 Skin Condition Warm. Skin Condition Warm Skin Condition Cool. Skin Condition Cool Skin Condition Cold. Skin Condition Cold Skin Condition Dry. Skin Condition Dry Skin Condition Clammy. Skin Condition Clammy Skin Condition Diaphoretic. Skin Condition Diaphoretic Skin Condition Flush. Skin Condition Flush Skin Condition Mottled. Skin Condition Mottled Skin Condition Pale. Skin Condition Pale Airway unobstructed. Airway unobstructed Airway partially obstructed. Airway partially obstructed Airway severely obstructed. Airway severely obstructed Anatomy could not be visualized for the purpose of evaluation. Not Visualized Quantitative Arteriography Report. Quantitative Arteriography Report Quantitative Ventriculography Report. Quantitative Ventriculography Report Guidewire crossing lesion unsuccessful. Guidewire crossing lesion unsuccessful Guidewire crossing lesion successful. Guidewire crossing lesion successful Angioplasty balloon inflated. Angioplasty balloon inflated Angioplasty balloon deflated. Angioplasty balloon deflated Device deployed. Device deployed Stent re-expanded. Stent re-expanded Object removed. Object removed Radiation applied. Radiation applied Radiation removed. Radiation removed Interventional device placement unsuccessful. Interventional device placement unsuccessful Interventional device placed. Interventional device placed Intervention performed. Intervention performed Interventional device withdrawn. Interventional device withdrawn Catheter Size. Catheter Size Injectate Temperature. Injectate Temperature Injectate Volume. Injectate Volume Factor by which a measured or calculated value is multiplied to obtain the estimated real-world value. Calibration Factor Intravascular Ultrasound Report. IVUS Report External Elastic Membrane (EEM) diameter measured through the center point of the vessel. Center point of the vessel is defined as the center of gravity of the EEM area. The EEM is a discrete interface at the border between the media and the adventitia. EEM Diameter The distance from intimal leading edge to the external elastic membrane along any line passing through the luminal center, which is defined as the center of gravity of the lumen area. Plaque Plus Media Thickness Planimetered perimeter of the lumen. Lumen Perimeter Vessel area measured at the External Elastic Membrane (EEM), a discrete interface at the border between the media and the adventitia. EEM Cross-Sectional Area Area within the EEM occupied by atheroma, regardless of lumen compromise. Plaque plus Media Area = EEM cross-sectional area - vessel lumen cross-sectional area. Plaque plus Media Cross-Sectional Area Measurement of in-stent restenosis. In-Stent Intimal Area = Stent cross-sectional area - vessel lumen cross-sectional area. In-Stent Neointimal Cross-Sectional Area Longitudinal extent of the Vascular Volume Measurement. This is the distance from the distal edge to the proximal edge of the Volume measurement. Vascular Volume measurement length Longitudinal distance from the closest edge of a fiducial feature or reference location to the start of the vascular measurement. This value will be a positive if the measurement is distal to the fiducial feature or reference location, or negative if the measurement is proximal to the fiducial feature or reference location. Relative position In-Stent Neointimal Volume / Stent Volume. Stent Volume Obstruction Reference, normally anatomical, which is used for locating the position of a measurement. Fiducial feature Longitudinal calcium length measurement. Calcium Length Measurement of vessel lumen eccentricity. Lumen Eccentricity Index = (maximum vessel lumen diameter - minimum vessel lumen diameter) / maximum vessel lumen diameter. Lumen diameters are measured through the center point of the lumen, which is defined as the center of gravity of the lumen area. Lumen Eccentricity Index Plaque plus Media Eccentricity Index = (maximum Plaque plus media thickness - minimum Plaque plus media thickness) / maximum Plaque plus media thickness. Plaque plus Media Eccentricity Index Measurement of increase or decrease in EEM area that occurs during the development of atherosclerosis. Remodeling Index = Lesion EEM area / reference EEM area. Remodeling Index Measurement of stent circularity. Stent Symmetry Index = (maximum stent diameter - minimum stent diameter) / maximum stent diameter. Stent Symmetry Index Measurement of stent area relative to the reference lumen area. Stent Expansion Index = Minimum stent area / reference vessel lumen cross-sectional area. Stent Expansion Index Measurement of vessel lumen eccentricity. Lumen Shape Index = (2p * sqrt(Vessel lumen cross-sectional area / p) / Lumen Perimeter) 2Reference: Tobis & Yock, "Intravascular Ultrasound Imaging", Chapter 7. Lumen Shape Index Lumen diameter ratio = minimum vessel lumen diameter / maximum vessel lumen diameter, measured at the same cross section in the vessel. Lumen diameters are measured through the center point of the lumen, which is defined as the center of gravity of the lumen area. Lumen Diameter Ratio Stent diameter ratio = Minimum stent diameter / Maximum stent diameter, measured at the same cross section in the vessel. Stent diameters are measured through the center point of the stent, which is defined as the center of gravity of the stent area. Stent Diameter Ratio EEM diameter ratio = minimum EEM diameter / maximum EEM diameter. Measured at the same cross section in the vessel. EEM Diameter Ratio Fractional area within the External Elastic Membrane (EEM) occupied by atheroma. Plaque Burden = (EEM area - vessel lumen cross-sectional area) / EEM area. Plaque Burden Angular measurement of a Calcium deposit with the apex located at the center of the lumen, which is defined as the center of gravity of the lumen area. Arc of Calcium Plaque characterized by low density or echogenicity. Soft plaque Abnormal thickening of the intima within the stented segment. In-Stent Neointima Lumen surrounded by all three layers of the vessel-intima, media, and adventitia. True Lumen A channel, usually parallel to the true lumen, which does not communicate with the true lumen over a portion of its length. False Lumen Plaque ulceration with a tear detected in a fibrous cap. Plaque Rupture Length of gap between two consecutive stents. Stent Gap Worst stenosis - the stenosis with the smallest lumen size within a vessel segment. T-1 Worst 2nd most severe stenosis within a vessel segment. T-2 Secondary 3rd most severe stenosis within a vessel segment. T-3 Secondary 4th most severe stenosis within a vessel segment. T-4 Secondary External Elastic Membrane (EEM) volume measured within a specified region. The EEM is a discrete interface at the border between the media and the Adventitia. EEM Volume Lumen volume measured within a specified region. Lumen Volume The amount of plaque between the lumen and stent, within the stent region; In-stent restenosis. In-Stent Neointimal Volume = Stent Volume - Lumen Volume. In-Stent Neointimal Volume The amount of plaque between the stent and the EEM, within the stent region. Native Plaque Volume = EEM Volume - Stent Volume. Native Plaque Volume Total amount of plaque between the EEM and the Lumen, over the entire region that is measured. Total Plaque Volume = EEM Volume - Lumen Volume. Total Plaque Volume Proximal reference segment measurement site. Typically the site with the largest lumen proximal to a stenosis but within the same segment (usually within 10 mm of the stenosis with no major intervening branches). Proximal Reference Distal reference segment measurement site. Typically the site with the largest lumen distal to a stenosis but within the same segment (usually within 10 mm of the stenosis with no major intervening branches). Distal Reference Site of the smallest lumen in a vessel. Due to a stenotic lesion. Site of Lumen Minimum Measurement region that encompasses the entire vessel imaged in a single pullback acquisition. Entire Pullback Measurement region occupied by the stent. Stented Region Region starting at the proximal edge of the Stent and extending several millimeters (usually 5 mm) proximal to the Stent edge. Proximal Stent Margin Region starting at the distal edge of the Stent and extending several millimeters (usually 5 mm) distal to the Stent edge. Distal Stent Margin Classification of dissections in a vessel. Dissection Classification Separation of neointimal hyperplasia from stent struts, usually seen only after treatment of in-stent restenosis. Intra-stent Dissection Plaque with a thin cap fibrous atheroma that is at increased risk of rupture and thrombosis (or re-thrombosis) and rapid stenosis progression. Vulnerable Plaque Plaque erosions with no structural defect (beyond endothelial injury) or gap in the plaque. Eroded Plaque Stenosis severity classifications of multiple lesions in a vessel. Relative Stenosis Severity A finding of a previously treated lesion in which stenosis has reoccurred. Restenotic Lesion Loosely packed bundles of collagen fibers with regions of lipid deposition present. Region is cellular and no cholesterol clefts or necrosis are present. Somemacrophage infiltration. Increase in extra cellular matrix. Fibro-Lipidic Plaque Area within the plaque with very low echogenicity separated from the lumen and surrounded by more echogenic structures (fibrous cap). Highly lipidic necrotic region with remnants of foam cells and dead lymphocytes present. No collagen fibers are visible and mechanical integrity is poor. Cholesterol clefts and micro calcifications are visible. Necrotic-Lipidic Plaque Separation of the layers of an artery involving the adventitia Adventitial Dissection Separation of the layers of an artery involving the intima. Dissection limited to the intima or atheroma, and not extending to the media. Intimal Dissection Separation of the layers of an artery involving the media. Dissection in the arterial Media, extending into the media. Medial Dissection The referenced information was acquired simultaneously with the information in the object in which the reference occurs. Simultaneously Acquired Information acquired for the same anatomic region. Same Anatomy Information acquired for the same indication. To elucidate the same diagnostic question. Same Indication The referenced information was used to correct the data for differential attenuation through different anatomic tissue. For Attenuation Correction Value estimated for a vessel in the absence of a stenosis. Reconstructed Manufacturer of application used. Algorithm Manufacturer Left Atrial Ejection Fraction by Angiography. Left Atrial Ejection Fraction by Angiography Left Atrial End Diastolic Volume. Left Atrial ED Volume Left Atrial End Systolic Volume. Left Atrial ES Volume Contour repositioning of End Diastolic relative to End Systolic contour. Contour Realignment The minimum standard deviation to define the hypokinesis and hyperkinesis. Threshold Value Report of differentiation of wall motion compared to normal. Regional Abnormal Wall Motion Object used for Calibration. Calibration Object Method used for Calibration. Calibration Method Size of calibration object. Calibration Object Size Method how long axis is positioned. Area Length Method Model for cardiac chamber volume calculation. Volume Method Method to define original diameter of the artery. Reference Method Relation between calculated End Diastolic volume and ventricular End Diastolic volume. The specific meaning is dependent on volume method used. Regression Slope ED Correction factor for the calculated End Diastolic volume and ventricular End Diastolic volume. The specific meaning is dependent on volume method used. Regression Offset ED Relation between calculated End Systolic volume and ventricular End Systolic volume. The specific meaning is dependent on volume method used. Regression Slope ES Correction factor for the calculated End Systolic volume and ventricular End Systolic volume. The specific meaning is dependent on volume method used. Regression Offset ES Exponent of volume in regression formula. Regression Volume Exponent Container for spatial locations or coordinates used for calculation. Reference Points Average thickness of the chamber wall in the current view. Wall Thickness Volume of the chamber wall estimated from the current view. Wall Volume Mass of the chamber wall (myocardium). Wall Mass Peak systolic stress of chamber wall. Wall Stress Method to calculate wall motion [example: Sheehan, 1986]. Centerline Wall Motion Analysis The length between End Diastolic and End Systolic contour perpendicular on the centerline normalized by a method dependent ventricular perimeter length. The centerline is the line equidistant between the End Diastolic and End Systolic contour [example: Sheehan, 1986]. Normalized Chord Length The report of the boundaries of the abnormal (hyperkinetic, hypokinetic, a-kinetic) regions associated with the territory of the artery [example: Sheehan, 1986]. Abnormal Region The chord number specifying the begin of abnormal region [example: Sheehan, 1986]. First Chord of Abnormal Region The chord number specifying the end of abnormal region [example: Sheehan, 1986]. Last Chord of Abnormal Region Severity at the regional abnormality extent [example: Sheehan, 1986]. Territory Region Severity Severity at the opposite regional abnormality extent [example: Sheehan, 1986]. Opposite Region Severity Based on a total number of chords of 100 and RAO project the range of chords belonging to this circumferential extent lies between 5 - 85. [Sheehan, 1986]. LAD Region in RAO Projection Based on a total number of chords of 100 and RAO project the range of chords belonging to this circumferential extent lies between 25 - 85. [Sheehan, 1986]. RCA Region in RAO Projection Based on a total number of chords of 100 and RAO projection the range of chords belonging to this regional extent lies between 10 - 66 (hypokinetic) and 67 - 80 (hyperkinetic). [Sheehan, 1986]. Single LAD Region in RAO Projection Based on a total number of chords of 100 and RAO projection the range of chords belonging to this regional extent lies between 51 - 80 (hypokinetic) and 10 - 50 (hyperkinetic). [Sheehan, 1986]. Single RCA Region in RAO Projection Based on a total number of chords of 100 and RAO projection the range of chords belonging to this regional extent lies between 10 - 58 (hypokinetic) and 59 -80 (hyperkinetic). [Sheehan, 1986]. Multiple LAD Region in RAO Projection Based on a total number of chords of 100 and RAO projection the range of chords belonging to this regional extent lies between 59 - 80 (hypokinetic) and 10 - 58 (hyperkinetic). [Sheehan, 1986]. Multiple RCA Region in RAO Projection Based on a total number of chords of 100 and LAO projection the range of chords belonging to this regional extent lies between 50 -100 (hypokinetic) and 20 - 49 (hyperkinetic). [Sheehan, 1986]. LAD Region in LAO Projection Based on a total number of chords of 100 and LAO projection the range of chords belonging to this regional extent lies between 19 - 67 (hypokinetic) and 68 - 100 (hyperkinetic). [Sheehan, 1986]. RCA Region in LAO Projection Based on a total number of chords of 100 and LAO projection the range of chords belonging to this regional extent lies between 38 -74 (hypokinetic) and 75 - 100 (hyperkinetic). [Sheehan, 1986]. CFX Region in LAO Projection Method based on assumption that the image object is circular. Circular Method Method based on the gray value distribution of the image. Densitometric Method End Systolic contour realigned to End Diastolic contour based on the center of gravity. Center of Gravity End Systolic contour realigned to End Diastolic contour based on the mid point of the long axis. The long axis end points are defined as the posterior and apex. Long Axis Based No Contour Realignment applied. No Realignment Calculated Vessel Lumen Cross-Sectional Area based on the referenced method. Vessel Lumen Cross-Sectional Area Location of the beginning of a contour. Contour Start Location of the end of a contour. Contour End Sphere visible in an image, which is used as a calibration or marker object. Sphere Object of interest in isocenter of image and pixel separation is calculated from geometric data. Geometric Isocenter Object of interest not in isocenter of image and pixel separation is calculated from geometric data and out of isocenter distances. Geometric Non-Isocenter Object used for calibration. Sphere. Calibration Object Used Application dependent method to calculate the reference diameter based on the multiple diameter values. Curve Fitted Reference Application dependent method to calculate reference by interpolation, based on the diameter of two or more user defined reference positions. Interpolated Local Reference Application dependent method to calculate by averaging the reference, based on the diameter of one or more user defined reference positions. Mean Local Reference Method to calculate wall motion based on the lengths of the radials in the predefined regions [Ingels]. Radial Based Wall Motion Analysis Contribution of Region to global Ejection factor based on radial or landmark based wall motion method. Regional Contribution to Ejection Fraction The reduction of area between End Systolic and End Diastolic based on radial wall motion analysis. Radial Shortening Method to calculate wall motion based on the move of landmarks on the wall [Slager]. Landmark Based Wall Motion Analysis Contribution to the ejection fraction of a specific slice region [Slager]. Slice Contribution to Ejection Fraction Method to calculate volumes of heart chambers for every image in a range. Frame to Frame Analysis The area is derived by considering a set of coordinates as a closed irregular polygon, accounting for inner angles.The exact method, such as by decomposition into triangles or quadrilaterals, is not specified, since it does not affect the numeric result, apart from the effect of numeric precision during computation of intermediate results. Area of closed irregular polygon The area is derived by using a set of coordinates as control points for a Non Uniform Rational B-Spline (NURBS). Area of a closed NURBS Method of integrating the sum of the areas on adjacent slices across the slice interval to derive a total volume; each area is defined by a regular planar shape or by considering a set of coordinates as a closed irregular polygon, accounting for inner angles. Integration of sum of closed areas on contiguous slices method for volume Procedure used to calibrate measurements or measurement devices. Calibration Left contour of lumen (direction proximal to distal). Left Contour Right contour of lumen (direction proximal to distal). Right Contour Ordered set of diameters values derived from contours (direction proximal to distal). Diameter Graph Length Luminal Segment. Length Luminal Segment Increment value along X-axis in Diameter Graph. Graph Increment Location of the maximum lumen area in a lesion or vessel. Site of Maximum Luminal Ordered set of cross-sectional Vessel Lumen Cross-Sectional Area values derived from contours (direction proximal to distal) based on densitometric method. Densitometric Luminal Cross-sectional Area Graph Position of proximal border of segment relative to the contour start (proximal end of analysis area). Position of Proximal Border Position of distal border of segment relative to the contour start (proximal end of analysis area). Position of Distal Border Longitudinal cross sectional area of plaque. Plaque Area Symmetry of stenosis (0 = complete asymmetry, 1 = complete symmetry). Diameter Symmetry Symmetry of plaque (0 = complete asymmetry, 1 = complete symmetry). Area Symmetry The average slope of the diameter function between the position of the minimum luminal diameter and the position of the proximal border of the segment. Inflow Angle The average slope of the diameter function between the position of the minimum luminal diameter and the position of the distal border of the segment. Outflow Angle The relation between coronary pressure and coronary flow. Stenotic Flow Reserve Poiseuille Resistance at the location of the stenosis. Poiseuille Resistance Turbulence Resistance at the location of the stenosis. Turbulence Resistance Pressure drop over the stenosis at maximum heart output. Pressure Drop at SFR Method for selection of vessel sub-segments. Segmentation Method Estimate of the volume of blood flow in the absence of stenosis. Estimated Normal Flow Area Length method defined by Kennedy [Kennedy, 1970]. Area Length Kennedy Area Length method defined by Dodge [Dodge, 1960]. Area Length Dodge Area Length method defined by Wynne [Wynne]. Area Length Wynne Volume method based on multiple slice. Multiple Slices Volume method defined by Boak [Boak]. Boak Volume method defined by Ferlinz [Ferlinz]. TS Pyramid Volume method defined by Graham [Graham]. Two Chamber Volume method defined by Arcilla [Arcilla]. Parallelepiped Corrected Body Surface area for indexing the hemodynamic measurements for a pediatric patient. BSA^1.219 Method for selecting sub-segments that are all of the same length. Equidistant method Manually selected start and end of sub-segment. User selected method Left ventricular posterobasal segment. Left ventricular posterobasal segment Report of a Cardiovascular Analysis, typically from a CT or MR study. Cardiovascular Analysis Report Ventricular Analysis. Ventricular Analysis Myocardial Perfusion Analysis. Myocardial Perfusion Analysis Calcium Scoring Analysis. Calcium Scoring Analysis Flow Quantification Analysis. Flow Quantification Vascular Morphological Analysis. Vascular Morphological Analysis Vascular Functional Analysis. Vascular Functional Analysis Analysis of myocardial wall thickening. Thickening Analysis Section Heading for absolute values of ventricular measurements. Absolute Values Of Ventricular Measurements Results of normalizing ventricular measurements. Normalized Values Of Ventricular Measurements Reference Point of a measurement. Reference Point Central breathing position between inspiration and expiration. Central breathing position Peak of the ventricular ejection rate. Peak Ejection Rate Time of the peak of ventricular ejection. Peak Ejection Time Peak of the fluid filling rate. Peak Filling Rate Time interval until time of peak filling from a given reference point. End systole. Peak Filling Time Papillary muscle was excluded from the measurement. Papillary Muscle Excluded Papillary muscle was included in the measurement. Papillary Muscle Included The ratio of the end-systolic wall thickness compared to the end-diastolic wall thickness. Wall Thickness Ratio end-systolic to end-diastolic The method to smooth a ventricular volume as a function of time. Curve Fit Method Baseline correction used in the calculation of the results. Baseline Result Correction The time in a dynamic set of images at which the first peak of the signal is observed for the analyzed myocardial wall segments. Signal Earliest Peak Time This is the time at which the signal begins to increase. Signal Increase Start Time Time interval between the beginning of the signal increase to the time at which the signal intensity reaches its first maximum in a dynamic set of images. Signal Time to Peak Peak of the MR perfusion signal. MR Perfusion Peak Signal intensity as a function of time. It is the change in the signal intensity divided by the change in the time. MR Perfusion Slope MR perfusion time integral from baseline (foot time) to earliest peak. MR Perfusion Time Integral First time point in a dynamic set of images used in the calculation of the baseline signal intensity for each myocardial wall segment. Signal Baseline Start Last time point in a dynamic set of images used in the calculation of the baseline signal intensity for each myocardial wall segment. Signal Baseline End The time delta between images in a dynamic set of images. Image Interval The minimum velocity encoded by the phase encoding gradient. Velocity Encoding Minimum Value The maximum velocity encoded by the phase encoding gradient. Velocity Encoding Maximum Value Forward volume-reverse volume. Net Forward Volume Area Based Method for estimating volume or area. Area Based Method Diameter Based Method for estimating volume, area or diameter. Diameter Based Method Volume Based Method for estimating volume. Volume Based Method A method of diameter measurements according to NASCET (North American Symptomatic Carotid Endarterectomy Trial). NASCET A method of diameter measurements according to ECST (European Carotid Surgery Trial). ECST Agatston Score Threshold. Agatston Score Threshold Calcium Mass Threshold. Calcium Mass Threshold Calcium Scoring Calibration. Calcium Scoring Calibration Calcium Volume. Calcium Volume Calcium Mass. Calcium Mass Delayed hyperenhancement of a tissue observed in an image acquired after injection of contrast media. Late Contrast Enhancement Time interval since injection of contrast media. Time interval since injection of contrast media Time relative to R-wave peak. Time relative to R-wave peak Relationship between blood velocity and time relative to R-wave peak. Blood velocity vs. time of cardiac cycle Time interval since detection of contrast bolus. Time interval since detection of contrast bolus Indicates if the papillary muscle was included or excluded in the measurement. Papillary Muscle Included/Excluded Anterior to Posterior direction. Anterior-Posterior Persistent flow of blood into the stent-grafting. endoleak Fracture of a stent. Stent Fracture Disintegration of a stent. Stent Disintegration Material that a stent consists of. Stent Composition Finding about the characteristics of the parent vessel of a vessel. Parent Vessel Finding Site of Maximal lumen diameter of a vessel. Site of Lumen Maximum The physical domain (time, space, etc.) to the horizontal axis of the graphical presentation. X-Concept The physical domain (time, space, etc.) to the vertical axis of the graphical presentation. Y-Concept Indications for Pharmacological Stress. Indications for Pharmacological Stress Reference time for measurement of elapsed time in a procedure. Procedure time base Treadmill speed. Treadmill speed Treadmill gradient. Treadmill gradient Ergometer power. Ergometer power Pharmacological Stress Agent Dose Rate. Pharmacological Stress Agent Dose Rate Rating of Perceived Exertion. Rating of Perceived Exertion Number of ectopic beats during a period of collection. Number of Ectopic Beats Heart rate times systolic blood pressure. Double Product Physical activity workload (intensity) measurement. Activity workload Elapsed time at stage. Time since start of stage Exercise duration after stress agent injection. Exercise duration after stress agent injection Imaging Start DateTime. Imaging Start DateTime Attenuation correction method. Attenuation correction method Pharmacological Stress Agent Dose. Pharmacological Stress Agent Dose Maximum power output achieved during course of procedure. Maximum Power Output Achieved Peak physical activity intensity measurement during course of procedure. Peak activity workload Peak Double Product measurement during course of procedure. Peak Double Product Ordered subsets expectation maximization reconstruction algorithm. OSEM algorithm Chang attenuation correction method. Chang method Attenuation correction not based on image-based attenuation maps. Algorithmic attenuation correction NM transmission attenuation correction. NM transmission attenuation correction CT-based attenuation correction. CT-based attenuation correction No attenuation correction. No Attenuation Correction Bazett QT Correction Algorithm; QT/(RR ^ 0.5); Bazett HC. "An analysis of the time-relations of electrocardiograms" Heart7:353-370 (1920). Bazett QTc Algorithm Hodges QT Correction Algorithm; QT + 1.75 (heart rate-60); Hodges M, Salerno Q, Erlien D. "Bazett's QT correction reviewed. Evidence that a linear QT correction for heart rate is better." J Am Coll Cardiol1:694 (1983). Hodges QTc Algorithm Fridericia QT Correction Algorithm; QT/(RR ^ 0.333); Fridericia LS. "The duration of systole in the electrocardiogram of normal subjects and of patients with heart disease" Acta Med Scand53:469-486 (1920). Fridericia QTc Algorithm Framingham QT Correction Algorithm; QT + 0.154 (1- RR); Sagie A, Larson MG, Goldberg RJ, et al. "An improved method for adjusting the QT interval for heart rate (the Framingham Heart Study)." Am J Cardiol70:797-801(1992). Framingham QTc Algorithm Borg Rating of Perceived Exertion Scale, range 6:20. Borg RPE Scale Borg category ratio scale, open ended range with nominal range 0:10. Borg CR10 Scale Quality of a study for the purpose for which it was created. Overall study quality Quality of an image is excellent for the purpose for which it was created. Excellent image quality Quality of an image is good for the purpose for which it was created. Good image quality Quality of an image is poor for the purpose for which it was created. Poor image quality Image attenuation due to body physique (overweight). Body habitus attenuation Image attenuation due to breast tissue. Breast attenuation Image attenuation due to diaphragm. Diaphragmatic attenuation Finding of a defect is incorrect. From automated analysis. False positive defect finding ECG is non-diagnostic due to low heart rate. Non-diagnostic - low heart rate ECG is non-diagnostic due to resting ST abnormalities. Non-diagnostic - resting ST abnormalities ECG is non-diagnostic due to ventricular pacing or Left Bundle Branch Block. Non-diagnostic - ventricular pacing or LBBB ECG is non-diagnostic for presence of acute coronary syndrome. Non-diagnostic ECG Strongly positive finding. Strongly positive Strongly positive finding - ST elevation. Strongly positive - ST elevation Finding of ST segment depression with no slope. ST Depression - Horizontal Finding of ST segment depression with upslope. ST Depression - Upsloping Finding of ST segment depression with downslope. ST Depression - Downsloping Stress test score. Stress test score Number of diseased vessel territories. Number of diseased vessel territories Patient weight exceeds equipment limit. Patient weight exceeds equipment limit Difference in Ejection Fraction. Difference in Ejection Fraction Difference in End Diastolic Left Ventricular Volume. Difference in ED LV Volume Ratio of achieved to predicted maximal oxygen consumption. Ratio of achieved to predicted maximal oxygen consumption Ratio of achieved to predicted functional capacity. Ratio of achieved to predicted functional capacity Workload (Watts) at target heart rate divided by body weight. Aerobic index ST depression at peak exercise divided by the exercise-induced increase in heart rate [Kligfield P, Ameisen O, Okin PM. "Heart rate adjustment of ST segment depression for improved detection of coronary artery disease." Circulation 1989;79:245-55.]. ST/HR Index Agreement with prior findings. Agreement with prior findings Disagreement with prior findings. Disagreement with prior findings Nuclear Medicine Rest thallium/stress technetium procedure. Rest thallium/stress technetium procedure Nuclear Medicine Rest technetium/stress technetium 1 day procedure. Rest technetium/stress technetium 1 day procedure Nuclear Medicine Rest technetium/stress technetium 2 day procedure. Rest technetium/stress technetium 2 day procedure Nuclear Medicine Stress technetium/rest technetium 1 day procedure. Stress technetium/rest technetium 1 day procedure Nuclear Medicine Myocardial Viability procedure. NM Myocardial Viability procedure Positron Emission Tomography Perfusion Imaging procedure, rest only. PET Myocardial Perfusion, Rest only Positron Emission Tomography Perfusion Imaging procedure, stress only. PET Myocardial Perfusion, Stress only Positron Emission Tomography Perfusion Imaging procedure, rest and stress. PET Myocardial Perfusion, Rest and Stress Positron Emission Tomography Myocardial Viability procedure, rest only. PET Myocardial Viability, Rest only Positron Emission Tomography Myocardial Viability procedure, stress only. PET Myocardial Viability, Stress only Positron Emission Tomography Myocardial Viability procedure, rest and stress. PET Myocardial Viability, Rest and Stress Group of symptoms heralding angina pectoris that does not include chest pain (dyspnea, diaphoresis, profuse vomiting in a diabetic patient, or arm or jaw pain). Anginal Equivalent true Retired - Replaced by (349358000, SCT, "Radiopharmaceutical agent"). Active ingredient (molecular) used for radioactive tracing. Radiopharmaceutical DateTime of radiopharmaceutical administration to the patient for imaging purposes. Radiopharmaceutical Start DateTime Ending DateTime of radiopharmaceutical administration to the patient for imaging purposes. Radiopharmaceutical Stop DateTime Volume of radiopharmaceutical administered to the patient. Radiopharmaceutical Volume Total amount of radionuclide administered to the patient at Radiopharmaceutical Start Time. Radionuclide Total Dose Activity per unit mass of the radiopharmaceutical at Radiopharmaceutical Start Time. Radiopharmaceutical Specific Activity Pre-injection syringe acquisition count rate. Radionuclide Syringe Counts Syringe acquisition count rate following patient injection. Radionuclide Residual Syringe Counts Contrast or bolus agent. Contrast/Bolus Agent Medication to be administered at the beginning of the Scheduled Procedure Step. Pre-Medication Anatomic Region to be imaged. Target Region Direction of imaging (includes view, transducer orientation, patient orientation, and/or projection). Imaging Direction Imaging condition for refinement of protocol (includes secondary posture, instruction, X-Ray / electron beam energy or nuclide, and ultrasound modes), as used in JJ1017 v3.0. Imaging Conditions Caudal 10 degree distal-cranioproximal oblique radiographic projection, defined per Smallwood et al. Caudal 10 degree distal-cranioproximal oblique Surface processing utilizing predefined weighting factors (i.e., kernels) applied to different data values depending on their location relative to other data values within the data domain. Includes Low Pass, High Pass, Gaussian, Laplacian, etc. Neighborhood Analysis Surface processing applied non-uniformly utilizing a priori knowledge of the system and/or relative locations of the data values within the data domain. Example: Neighborhood analysis where weighting factors are modified continuously based on predefined criteria. Adaptive Filtering Surface processing through the exploitation of discontinuities in the data values within their domain. Includes Gradient filters. Edge Detection Surface processing based on the connectivity of values based on the shape or structure of the data values within their domain. Includes erode, dilate, etc. Morphological Operations Surface processing applied to the distribution of the data values. Includes thresholding, Bayesian Classification, etc. Histogram Analysis Surface processing accomplished through varying the data domain size. Include deformable models. Multi-Scale/Resolution Filtering Surface processing accomplished by combining data values based on their relative location within their domain or value distribution. Includes K- and C-means, Fuzzy Analysis, Watershed, Seed Growing, etc. Cluster Analysis Surface processing accomplished through the weighted combination of multiple sets of data. Includes Principle Component Analysis, linear and non-linear weighed combinations, etc. Multispectral Processing Surface processing accomplished through human interaction. Region drawing. Manual Processing Surface processing using Artificial Intelligence techniques, such as Machine Learning, Neural Networks, etc. Artificial Intelligence Surface processing using Deformable Model techniques, such as Point Distribution Models, Level Sets, Simplex Meshes, etc. Deformable Models Document Title of OB-GYN procedure report. OB-GYN Ultrasound Procedure Report Report section for assessment of fetal growth using ratios and indexes. Fetal Biometry Ratios Report section for assessment of fetal growth. Fetal Biometry Report section for assessment of fetal growth by long bone measurements. Fetal Long Bones Report section for assessment of fetal cranium growth. Fetal Cranium Biometric assessment of. Biometry Group Report section for assessment of biophysical observations that evaluate fetal well-being according to Manning, Antepartum Fetal Evaluation: Development of a Fetal Biophysical Profile Score, Am. J Obstet Gynecol, 1980;136:787. Biophysical Profile A grouping of related measurements and calculations that share a common context. Measurement Group Report section for fetus specific procedure summary observations. Fetus Summary Report section for assessment of early gestation fetus. Early Gestation A name to differentiate between multiple instances of some item. Identifier Report section for assessment of pelvis and uterus. Pelvis and Uterus The rank of a measured growth indicator relative to a normal distribution expressed as a percentage. Growth Percentile rank The rank of a measured growth indicator relative to a normal distribution expressed as the dimensionless quantity z = (x-m) /s where (x-m) is the deviation of the value x, from the distribution mean, m, and s is the standard deviation of the distribution. Growth Z-score Fetus characteristics (findings section title). Fetus Characteristics Fetal Measurements (findings section title). Fetal Measurements There is a defined equivalence between the Frame of Reference of the Registration SOP instance and the Frame of Reference of the referenced images. Frame of Reference Identity The registration is based on fiducials that represent patient or specimen features identified in each set of data. Fiducial Alignment Registration based on a-priori knowledge of the acquisition geometry. This is not an object registration as in fiducial registration. Rather, it specifies a known spatial relationship. Acquisition Equipment Alignment Computed registration based on global image information. Image Content-based Alignment Registration by visually guided manipulation. Visual Alignment The registration is based on fiducials that represent patient or specimen features identified in each data set in combination with global image information. Image Content and Fiducial Based Alignment Values are derived by sampling data from a Source Image into a Registered Reference Coordinate System based on a Deformable Spatial Registration Instance. Deformed for Registration Deformable Spatial Registration Instance used for image deformation. Source Deformable Spatial Registration A plane fiducial that specifies the location of the plane separating the two hemispheres of the brain. Inter-Hemispheric Plane A point fiducial that specifies the location in the plane perpendicular to the Anterior- Posterior-Commissure axis and tangential to the anterior limit of the right brain hemisphere. Right Hemisphere Most Anterior A point fiducial that specifies the location in the plane perpendicular to the Anterior- Posterior-Commissure axis and tangential to the posterior limit of the right brain hemisphere. Right Hemisphere Most Posterior A point fiducial that specifies the location in the plane perpendicular to the Anterior- Posterior-Commissure axis and tangential to the superior limit of the right brain hemisphere. Right Hemisphere Most Superior A point fiducial that specifies the location in the plane perpendicular to the Anterior- Posterior-Commissure axis and tangential to the inferior limit of the Right brain hemisphere. Right Hemisphere Most Inferior A point fiducial that specifies the location in the plane perpendicular to the Anterior- Posterior-Commissure axis and tangential to the anterior limit of the left brain hemisphere. Left Hemisphere Most Anterior A point fiducial that specifies the location in the plane perpendicular to the Anterior- Posterior-Commissure axis and tangential to the posterior limit of the left brain hemisphere. Left Hemisphere Most Posterior A point fiducial that specifies the location in the plane perpendicular to the Anterior- Posterior-Commissure axis and tangential to the superior limit of the left brain hemisphere. Left Hemisphere Most Superior A point fiducial that specifies the location in the plane perpendicular to the Anterior- Posterior-Commissure axis and tangential to the inferior limit of the left brain hemisphere. Left Hemisphere Most Inferior That which is not part of an object. Background of an image (that which might be encoded with Pixel Padding Value, or a Segmentation Property Type. Background A segment for use as an input to an image registration process. To specify the bounding region for determining a Frame of Reference Transformation Matrix. Registration Input true Retired - Replaced by (39445-2, LN, "US Doppler Vessels Report". Root Document Title for ultrasound vascular evidence reports (worksheets). Vascular Ultrasound Procedure Report The particular vessel branch, such as the inferior, medial or lateral. Vessel Branch A descriptor or elaboration of the type of graft. Graft Type A modifier to a 2D distance measurement to describe its orientation. A vascular distance measurement for a vessel plague could have a modifier Transverse or Longitudinal. Measurement Orientation The angle formed between the Doppler beam line and the direction of blood flow within a region of interest in the body defined by the sample volume. Doppler Angle The depth of the center of the Doppler sample volume measured from skin line along the Doppler line. Sample Volume Depth Pediatric Cardiac Ultrasound Report (document title). Pediatric Cardiac Ultrasound Report Fetal Cardiac Ultrasound Report (document title). Fetal Cardiac Ultrasound Report Adult Congenital Cardiac Ultrasound Report (document title). Adult Congenital Cardiac Ultrasound Report Document title of adult echocardiography procedure (evidence) report. Adult Echocardiography Procedure Report An image that is a pictorial representation of findings. The concept is typically used as a purpose of reference to an image, such as a depiction of myocardium segments depicting wall motion function. Illustration of Finding The average of all scored (non-zero) Left Ventricle segment wall motion scores. LV Wall Motion Score Index A type of clinical acquisition protocol for creating images or image-derived measurements. Acquisition protocols may be specific to a manufacturer's product. Acquisition Protocol Method for calculating left ventricular volume from two orthogonal views containing the true long axis (usually the apical 4 and 2 chamber views). Volume = [pL1 / 6] * [(4A1) ¸ (pL1) ] * [(4A2) ¸ (pL2) ]. Area-length biplane Method for calculating left ventricular volume from a view containing the true long axis (usually the apical 4-chamber view). Volume = [8(A)2]¸[3pL]. Area-Length Single Plane Method (formula) for calculating left ventricle volumes and function derivatives (EF, SV, SI, etc.) that estimates the volume as the cube of diameter. Cube Method Method of calculating volume based on the summation of disk volumes. The disk axis is parallel to the left ventricular long axis and using a disk diameter averaged from the two chamber and four chamber views. Method of Disks, Biplane Method of calculating volume based on the summation of disk volumes. The disk axis is parallel to the left ventricular long axis with disk diameter taken from the four-chamber view. Method of Disks, Single Plane Method (formula) for calculating left ventricle volumes and function derivatives (EF, SV, SI, etc.) Volume = [7.0/(2.4+D) ]*D3. Teichholz Mitral valve area (cm2) by Pressure Half-time = 220 (cm2.ms) / PHT (ms). Area by Pressure Half-Time Area = P/4 X d1 X d2d1 = anterior/posterior axisd2 = medial/lateral axisHagen-Ansert, Sandra L., Textbook of Diagnostic Ultrasound, ed. 3, The C.V.Mosby Co., 1989, p. 73. . Biplane Ellipse For conduits in series ("in continuity"), volume flow is equal: A1*V1 = A2*V2. where V is the velocity. Continuity Equation For conduits in series ("in continuity"), volume flow is equal: A1*V1 = A2*V2. where V is the mean velocity. Continuity Equation by Mean Velocity For conduits in series ("in continuity"), volume flow is equal: A1*V1 = A2*V2. where V is the peak velocity. Continuity Equation by Peak Velocity For conduits in series ("in continuity"), volume flow is equal: A1*V1 = A2*V2. where V is the velocity time integral. Continuity Equation by Velocity Time Integral Utilizes aliasing velocity (by color Doppler) of flow into an orifice (often regurgitant or stenotic) to measure instantaneous flow rate, orifice area, and flow volume.The instantaneous flow rate = (2πr2vav) * (απ) where vav is the constant velocity known as aliasing velocity at radius r, vpis the peak velocity at the orifice, and α is the angle in radians of the constant velocity surface.Estimated Orifice area = Flow rate / vp, where vp is the peak velocity at the orifice and the flow rate is the PISA peak flow rate.The volume flow is then the product of the orifice area and Velocity Time Integral. Proximal Isovelocity Surface Area ΔP = 4*(V12 - V22). Full Bernoulli ΔP = 4*V2. Simplified Bernoulli Volume flow = Conduit CSA * (Velocity Time Integral). Doppler Volume Flow Direct measurement of an area by tracing an irregular perimeter. Planimetry Mass = 1.04 * [(ST+LVID+PWT)3 - LVID3] * 0.8+ 0.6. Mass unit is grams and length in cm. Left Ventricle Mass by M-mode Mass = 1.05P ((b + t)2 X (2/3 (a + t) + d - d3 /3(a + t)2) - b2 (2/3a + d - d3 /3a2))a = Semi-major axis from widest minor axis radius to apex.b = Short axis radius calculated from short axis cavity areat = Myocardial thickness calculated from short axis epicardial and cavity areasd = Truncated semi-major axis from widest short axis diameter to plane of mitral annulus.Mass unit is grams and length in cm.Schiller NB et al: Recommendations for quantification of the left ventricle by two-dimensional echocardiography, American Society of Echocardiography 2:364, 1989. . Left Ventricle Mass by Truncated Ellipse A four point, echocardiographic numeric scoring scheme of myocardium segments based on evaluation of wall motion and ventricle morphology. Recommendations for Quantitation of the Left Ventricle by Two-Dimensional Echocardiography, Journal of the American Society of Echocardiography, 2:358-367, 1989. 4 Point Segment Finding Scale A five point, echocardiographic numeric scoring scheme of myocardium segments based on evaluation of wall motion and ventricle morphology. Recommendations for Quantitation of the Left Ventricle by Two-Dimensional Echocardiography, Journal of the American Society of Echocardiography, 2:358-367, 1989. 5 Point Segment Finding Scale A five point, echocardiographic numeric scoring scheme of myocardium segments based on evaluation of wall motion and ventricle morphology, with severity of hypokinesis graded. Recommendations for Quantitation of the Left Ventricle by Two-Dimensional Echocardiography, Journal of the American Society of Echocardiography, 2:358-367, 1989. 5 Point Segment Finding Scale With Graded Hypokinesis Method of estimating volume from a planar ellipse. Equivalent to Biplane Ellipse with an assumption that the ellipse in the orthogonal plane has identical major and minor diameters. Single Plane Ellipse Modified Simpson's Method of estimating ventricular volume, based on the method of disks with paired apical views.Schiller NB, et al. "Recommendations for quantitation of the left ventricle by two-dimensional echocardiography. American Society of Echocardiography Committee on Standards, Subcommittee on Quantitation of Two-Dimensional Echocardiograms". J Am Soc Echocardiogr.1989 2(5):358-367. Sep-Oct. Modified Simpson Bullet method of estimating ventricular volume.Volume = 5/6 * L * SL: Left ventricle long axis lengthS: Left ventricle area, SAX view at level of Mitral Valve. Bullet Method true Retired - Replaced by (425704008, SCT, "Power Doppler") Color coded ultrasound images of blood flow, which depict the amplitude, or power, of Doppler signals. Power Doppler true Retired - Replaced by (426865009, SCT, "3D mode") Volumetric ultrasound imaging 3D mode Onset of administration of dose of a drug. Start of drug dose administration Onset of contrast agent administration. Start of contrast agent administration Destruction of ultrasonic contrast microbubbles by a high-energy ultrasound pulse. Destruction of microbubbles Instant at which exercise begins. Onset of exercise Instant at which exercise ends. Cessation of exercise Instant at which stimulation begins. Onset of stimulation Instant at which stimulation ends. Cessation of stimulation Ultrasound transducer scan pattern in which information is gathered along a line. Line scan pattern Ultrasound transducer scan pattern in which information is gathered within a plane. Plane scan pattern Ultrasound transducer scan pattern in which information is gathered within a volume. Volume scan pattern Ultrasound transducer geometry characterized by a single scan line used for PW or CW Doppler scanning. Non-imaging Doppler ultrasound transducer geometry Ultrasonic transducer geometry characterized by parallel lines. Linear ultrasound transducer geometry Ultrasonic transducer geometry characterized by radial lines normal to the outside of a curved surface. Curved linear ultrasound transducer geometry Ultrasonic transducer geometry characterized by lines originating from a common apex. Sector ultrasound transducer geometry Ultrasonic transducer geometry characterized by lines emanating radially from a single point. Radial ultrasound transducer geometry Ultrasonic transducer geometry characterized by a circular ring of transducer elements. Ring ultrasound transducer geometry Ultrasonic steering technique consisting of a single beam normal to the transducer face steered by the orientation of the probe. Fixed beam direction Ultrasonic steering technique consisting of mechanically directing the beam. Mechanical beam steering Ultrasonic steering technique consisting of electronically-steered beams. Phased beam steering Transducer is designed to be placed onto the surface of the subject. External Transducer Transducer is designed for insertion into the esophagus. Transesophageal Transducer Transducer is designed for insertion into the vagina. Endovaginal Transducer Transducer is designed for insertion into the rectum. Endorectal Transducer Transducer is designed for insertion into the subject via a catheter. Intravascular Transducer Transducer is designed for insertion into either the vaginal cavity or the rectal cavity. Endocavitary Transducer Transducer is designed for insertion into the subject via an incision. Intraoperative Transducer method to measure the mass of the Left Ventricle via the ASE area-length method at end diastole.LV Mass = 1.05*(5/6*(A1*(L+t)) - 5/6*(A2*L))A1 = Left Ventricle epicardial SAX area at the level of the papillary muscle tips at end diastole.A2 = Left Ventricle endocardial SAX area cavity area at the level of the papillary muscle tips at end diastole.L = Left Ventricle apical view long axis length at end diastole.t = Myocardial thickness can be computed as:t = sqrt (A1/3.14) - sqrt (A2/3.14)Reference:1) Schiller, N.B., et al. "Recommendations for Quantification of the LV by Two-dimensional Echocardiography." J Am Soc Echo, Vol. 2, No. 5: 358-367, Sep-Oct 1989.2) Reichek, N., et al. "Anatomic Validation of Left Ventricular Mass Estimates from Clinical Two-dimensional Echocardiography: Initial Results." Circulation, Vol. 67, No. 2: 348-52, February 1983. Left Ventricle Mass by Area Length Equation = Left Ventricle Mass by M-mode (in gram) / (Height (in meter)) ^2.7Reference:Giovanni De Simone, et al. "Effect of Growth on Variability of Left Ventricular Mass: Assessment of Allometric Signals in Adults and Children and Their Capacity to Predict Cardiovascular Risk". New York, New York and Cincinnati, Ohio. Left Ventricle Mass by M-mode - adjusted by Height Equation = Left Ventricle Mass by Truncated Ellipse / Height^2.7Reference:Giovanni De Simone, et al. "Effect of Growth on Variability of Left Ventricular Mass: Assessment of Allometric Signals in Adults and Children and Their Capacity to Predict Cardiovascular Risk". New York, New York and Cincinnati, Ohio. Left Ventricle Mass by Truncated Ellipse - adjusted by Height Equation = Left Ventricle Mass by Area Length / Height^2.7Reference:Giovanni De Simone, et al. "Effect of Growth on Variability of Left Ventricular Mass: Assessment of Allometric Signals in Adults and Children and Their Capacity to Predict Cardiovascular Risk". New York, New York and Cincinnati, Ohio. Left Ventricle Mass by Area Length - adjusted by Height Measurements that are described by a single pre-coordinated code. Pre-coordinated Measurements Measurements that are described by a collection of (generally atomic) post-coordinated codes. Post-coordinated Measurements Measurements taken in an ad hoc fashion without any coordinated semantics. Adhoc Measurements The source system of the measurement does not maintain a persistent pre-coordinated code by which different instances of the measurement can be associated and tracked over multiple procedures. Untrackable Measurement The type of observation made at the finding site, e.g., whether it is an observation of the structure of the finding site, an observation of the behavior of the finding site, or an observation of the blood flow at the finding site. Finding Observation Type The type of derivation used to obtain the measurement value. E.g. whether it is taken directly, formed as a ratio, normalized against an index, or calculated using a more elaborate equation. Measurement Type The property that is being measured.Examples include mass, diameter, peak blood velocity. Measured Property The measurement which is the denominator of a measurement that is divided. This applies to measurements such as ratios or indexed values. Measurement Divisor A brief label, suitable for display on a screen or report. (Not suitable for matching). Short Label Measurements that need to be associated with a specific stage in a procedure or acquisition protocol. Staged Measurements The subject of a measurement is the physical structure of the Finding Site, such as the mass or diameter. Structure of the Finding Site The subject of a measurement is the behavior of the Finding Site, such as the velocity or duration of motion. Behavior of the Finding Site The measurement has been normalized by dividing it by an index value (such as Body Surface Area). Indexed The measurement is a change value expressed as a fraction of its baseline value. E.g. cardiac ejection fraction or fractional shortening. Fractional Change The measurement is calculated by incorporating one or more measured values into an equation other than a ratio, fractional change or indexed calculation. Calculated The measurement is a direct output of the measurement tool. Directly measured The distal portion (at the Pulmonic Valve) of the Right Ventricle Outflow Tract. Right Ventricle Outflow Tract, Distal The proximal portion (subvalvular) of the Right Ventricle Outflow Tract. Right Ventricle Outflow Tract, Proximal The anterior wall of the right ventricle of the heart. Right Ventricle Anterior Wall The period of time between the onset of muscle activation and the onset of force or motion. Electromechanical Delay The period between onset of ventricular contraction and the beginning of antegrade blood flow out of the ventricle. Pre-ejection Period The period of atrial diastolic filling. Atrial Diastolic Filling (D-wave) The period of retrograde flow into the pulmonary vein during atrial contraction. AR-wave The period of the entire cardiac cycle. E.g. from End Systole of one heartbeat to End Systole of the next heartbeat. Full Cardiac Cycle The standard deviation over 12 left ventricle myocardial segments of the time to peak myocardial sustained systolic velocity of each segment.See Yu, et al., Circulation, 2002; 105: 438-445 Dyssynchrony Index The effective area of an orifice (such as the mitral valve orifice) during bloodflow through the orifice. Effective Orifice Area The distance traversed by some tissue over a defined period. Excursion Distance The maximum area of an orifice opening over a defined period. Maximum Orifice Area The peak pressure of blood over a defined period at a defined location. Peak Blood Pressure The peak velocity of some tissue over a defined period Peak Tissue Velocity The radius of the proximal isovelocity surface area (PISA) of fluid flow approaching an orifice. It is commonly used to evaluate cardiac valve regurgitation. PISA Radius A cross-sectional area of a regurgitation jet, taken perpendicular to the primary flow. Regurgitation Jet Area A width of a regurgitation jet taken perpendicular to the primary flow. Regurgitation Jet Width The width of the vena contracta of a fluid flow. Vena Contracta Width CARDIOsphere™ ultrasonic contrast agent produced by POINT Biomedical. CARDIOsphere Echovist® ultrasonic contrast agent produced by Schering AG. Echovist Imagify™ ultrasonic contrast agent produced by Accusphere Inc. Imagify Levovist® ultrasonic contrast agent produced by Schering AG. Levovist Sonazoid™ ultrasonic contrast agent produced by Daiichi Pharmaceutical / General Electric. Sonazoid SonoVue™ ultrasonic contrast agent produced by Bracco Diagnostics. SonoVue Targestar™-B ultrasonic contrast agent produced by Targeson LLC. Targestar-B Targestar™-P ultrasonic contrast agent produced by Targeson LLC. Targestar-P A structured report containing the quantitative results of human or machine analysis of images. Imaging Measurement Report A structured report containing the quantitative results of human or machine analysis of images for oncology evaluation. Oncology Measurement Report A structured report containing the quantitative results of human or machine analysis of DCE-MR. Dynamic Contrast MR Measurement Report A structured report containing the quantitative results of human or machine analysis of PET images. PET Measurement Report Measurements made on images Imaging Measurements Measurements derived from measurements made on images. Derived Imaging Measurements An MRI procedure in which multiple parameters including diffusion, dynamic contrast and T2 are measured. Multiparametric MRI true Retired - Replaced by (719178004, SCT, "Multiparametric MRI of prostate") An MRI procedure of the prostate in which multiple parameters including diffusion, dynamic contrast and T2 are measured. Multiparametric MRI of prostate An MRI procedure of the whole body in which multiple parameters including diffusion, dynamic contrast and T2 are measured. Multiparametric MRI of whole body Method of calculation of the volume of an ellipsoid as length * width * height * π / 6. LWH method for volume of ellipsoid Method of summing the volumes of all the voxels (and partial voxels if the segment contains partially occupied voxels) included in the segment to derive a total volume. Sum of segmented voxel method for volume Maximum average gray value that is calculated from a 1 cubic centimeter sphere placed within the region of interest.See Wahl RL, Jacene H, Kasamon Y, Lodge MA. From RECIST to PERCIST: Evolving Considerations for PET Response Criteria in Solid Tumors. Journal of Nuclear Medicine. 2009;50(Suppl 1):122S - 150S. Peak Value Within ROI The volume of a lesion (e.g., a tumor) ascertained through information about its metabolic activity (e.g., SUV on PET).Abbreviated "MV". Synonymous with Metabolic Tumor Volume (MTV). Metabolic Volume The total activity of a lesion obtained as the product of its volume and its glycolytic activity (on FDG-PET).The volume may be defined on the same modality (e.g., the MV on FDG-PET by some thresholding or other technique) or on another spatially registered modality (e.g., the lesion outline segmented on CT or MR).Does not apply to other radiopharmaceuticals than those involved in glucose metabolism.Abbreviated TLG. Synonymnous with "Tumor Lesion Glycolysis". Total Lesion Glycolysis The amount glycolytic activity summed across all voxels in a defined region or within a defined range of SUV (on FDG-PET). Glycolysis The total activity of a lesion obtained as the product of its volume and its proliferative activity (on FLT-PET).The volume may be defined on the same modality (e.g., the MV on FDG-PET by some thresholding or other technique) or on another spatially registered modality (e.g., the lesion outline segmented on CT or MR).Does not apply to other radiopharmaceuticals than those involved in cellular proliferation.Abbreviated TLP. Synonymnous with "Tumor Lesion Proliferation". Total Lesion Proliferation The amount proliferative activity summed across all voxels in a defined region or within a defined range of SUV (on FLT-PET). Proliferative Activity A background-corrected, partial volume independent version of TLG.SAM is calculated by drawing a volume of interest (VOI1) around the tumour and a larger VOI (VOI2) around VOI1. Subtracting the background activity in VOI2-VOI1 from VOI1 yields SAM.See Mertens et al. "Standardized added metabolic activity (SAM): a partial volume independent marker of total lesion glycolysis in liver metastases". Eur J Nucl Med Mol Imaging (2012) 39:1441-1448. Standardized Added Metabolic Activity The background value (VOI2-VOI1) used to calculate Standardized Added Metabolic Activity (SAM).SAM is calculated by drawing a volume of interest (VOI1) around the tumour and a larger VOI (VOI2) around VOI1. Subtracting the background activity in VOI2-VOI1 from VOI1 yields SAM.See Mertens et al. "Standardized added metabolic activity (SAM): a partial volume independent marker of total lesion glycolysis in liver metastases". Eur J Nucl Med Mol Imaging (2012) 39:1441-1448. Standardized Added Metabolic Activity Background The ratio of the SUV within a tumor to the SUV of a pre-defined background region.A more general concept than Tumor to Background Ratio (TBR). Lesion to Background SUV Ratio The SUV of a pre-defined background region used to compute Lesion to Background SUV Ratio. Background for Lesion to Background SUV Ratio A statistical index of complexity comparing how detail in a fractal pattern changes with the scale at which it is measured; a ratio of the change in detail to the change in scale. Fractal Dimension Measure of the asymmetry of the probability distribution of a real-valued random variable about its mean. Skewness Measure of the peakedness of the probability distribution of a real-valued random variable. Kurtosis true Retired - Replaced by (TU9B, IBSI, "Joint Entropy of GLCM"). The zero order entropy of a Gray Level Co-occurrence Matrix (GLCM). A measure of disorder. Abbreviated ENT.See Fcm.joint.entr in . Joint Entropy of GLCM The square root of the Angular Second Moment (ASM) of a Gray Level Co-occurrence Matrix (GLCM). A measure of orderliness.See . Sometimes referred to as "energy", "uniformity" or "uniformity of energy" but then potentially confused with ASM. Not defined in Root Angular Second Moment of GLCM The Inverse Difference Moment (homogeneity) of a Gray Level Co-occurrence Matrix (GLCM). Abbreviated IDM.See Fcm.inv.diff.mom in . Other concepts are sometimes referred to as "homogeneity", e.g., the "inverse difference", which is calculated from the absolute value of differences rather than square of them.Retired.Replaced by (WF0Z, IBSI, "Inverse Difference Moment of GLCM"). Inverse Difference Moment of GLCM The sum of squares of a Gray Level Co-occurrence Matrix (GLCM). A measure of gray level variations. Abbreviated CON.See Fcm.contrast in . Distinct from "joint (sum of squares) variance" and "dissimilarity".Retired.Replaced by (ACUI, IBSI, "Contrast of GLCM"). Contrast of GLCM The dissimilarity of a Gray Level Co-occurrence Matrix (GLCM). Abbreviated DIS.See Fcm.dissimilarity in . Distinct from "contrast", which uses square rather than absolute value of difference.Retired.Replaced by (8S9J, IBSI, "Dissimilarity of GLCM"). Dissimilarity of GLCM The Angular Second Moment of a Gray Level Co-occurrence Matrix (GLCM). Abbreviated ASM.See Fcm.energy in . Sometimes referred to as "energy", "uniformity" or "uniformity of energy" but then potentially confused with square root of ASM.Retired.Replaced by (8ZQL, IBSI, "Angular Second Moment of GLCM"). Angular Second Moment of GLCM A measure of the linear dependency of gray levels on those of neighbouring pixels of a Gray Level Co-occurrence Matrix (GLCM). Abbreviated COR.See Fcm.corr in . Correlation is NaN for a constant image.Retired.Replaced by (NI2N, IBSI, "Correlation of GLCM"). Correlation of GLCM A tabulation of how often different combinations of pixel values (gray levels) occur in an image. Abbreviated GLCM.See . Gray Level Co-occurrence Matrix An identifier of a specific time point in a continuum, which is unique within an appropriate local context (such as an entire organization, system or treatment protocol), which identifies the time point for a specific patient. Subject Time Point Identifier An identifier of a specific time point in a continuum, which is unique within an appropriate local context (such as an entire organization, system or treatment protocol), which identifies the time point "slot" within a treatment protocol using the same value for all patients in the protocol. Protocol Time Point Identifier A pre-defined type of a specific time point in a continuum. Time Point Type A number indicating the order of a time point relative to other time points in the same continuum. Time Point Order The time after the treatment of interest. Posttreatment For the purpose of determining eligibility for a protocol. Similar but not identical to (21954-3, LN, "Protocol eligibility status Cancer"), since not constrained to cancer, etc. Eligibility Response Evaluation Criteria in Solid Tumors version 1.0. See [RECIST] in Normative References. More specific than (112022, DCM, "RECIST") or (C1709926, UMLS, "RECIST") or (C49164, NCIt, "RECIST") in that a specific version is specified. RECIST 1.0 Response Evaluation Criteria in Solid Tumors Version 1.1. See Eisenhauer et al. "New Response Evaluation Criteria in Solid Tumours: Revised RECIST Guideline (version 1.1)." European Journal of Cancer 45, no. 2 (n.d.): 228-47. doi:10.1016/j.ejca.2008.10.026. More specific than (112022, DCM, "RECIST") or (C1709926, UMLS, "RECIST") or (C49164, NCIt, "RECIST") in that a specific version is specified. RECIST 1.1 A reference to the Real World Value Map applied to the stored image pixel values before their use for a measurement Real World Value Map used for measurement A container that groups common information about a set of images used as evidence to produce a report. Image Library Group The date the acquisition of data started Acquisition Date The time the acquisition of data started Acquisition Time The time between the start of injection of the PET radionuclide and the start of acquisition of the PET data. PET Radionuclide Incubation Time Coefficient of determination, R2. An indication of goodness of fit. R2-Coefficient Pearson's Χ2 test. Chi-square Durbin-Watson statistic for detecting serial correlation in residuals.See . D-W Akaike information criterion. A measure of the balance between goodness of fit and number of free parameters.See Akaike H. A new look at the statistical model identification. IEEE Transactions on Automatic Control. 1974 Dec;19(6):716-23. . AIC Bayesian information criterion. A measure of the balance between goodness of fit and model complexity.See . BIC Perfusion analysis by Stable Xenon CT technique Perfusion analysis by Stable Xenon CT technique Perfusion analysis by IV Iodinated Contrast CT technique Perfusion analysis by IV Iodinated Contrast CT technique Perfusion analysis by Arterial Spin Labeling (ASL) MR technique Perfusion analysis by Arterial Spin Labeling MR technique Perfusion analysis by Susceptibility (T2*) MR technique Perfusion analysis by Susceptibility MR technique Least Mean Square (LMS) deconvolution Least Mean Square deconvolution Singular Value Decomposition (SVD) deconvolution Singular Value Decomposition deconvolution Ktrans, the volume transfer constant of a tracer diffusion kinetic model, specifically the volume transfer constant between blood plasma and extravascular extracellular space (EES)See Tofts et al, "Estimating Kinetic Parameters From Dynamic Contrast-Enhanced T1-Weighted MRI of a Diffusable Tracer: Standardized Quantities and Symbols", Journal of Magnetic Resonance Imaging, vol. 10, pp. 223-232, 1999. Ktrans kep, the rate constant between extravascular extracellular space (EES) and blood plasmaSee Tofts et al, "Estimating Kinetic Parameters From Dynamic Contrast-Enhanced T1-Weighted MRI of a Diffusable Tracer: Standardized Quantities and Symbols", Journal of Magnetic Resonance Imaging, vol. 10, pp. 223-232, 1999. kep ve, the fractional (not absolute) volume of extravascular extracellular space (EES) per unit volume of tissueSee Tofts et al, "Estimating Kinetic Parameters From Dynamic Contrast-Enhanced T1-Weighted MRI of a Diffusable Tracer: Standardized Quantities and Symbols", Journal of Magnetic Resonance Imaging, vol. 10, pp. 223-232, 1999. ve The initial area under the contrast agent concentration-time curve IAUC The initial area under the contrast agent concentration-time curve at 60 seconds after the onset time IAUC60 The initial area under the contrast agent concentration-time curve at 90 seconds after the onset time IAUC90 The initial area under the contrast agent concentration-time curve at 180 seconds after the onset time IAUC180 The initial area under the contrast agent concentration-time curve, normalized with the corresponding arterial input function, such that IAUCBN = IAUC / IAUCAIF. IAUCBN The initial area under the contrast agent concentration-time curve at 60 seconds after the onset time, normalized with the corresponding arterial input function, such that IAUC60BN = IAUC60 / IAUC60AIF. IAUC60BN The initial area under the contrast agent concentration-time curve at 90 seconds after the onset time, normalized with the corresponding arterial input function, such that IAUC90BN = IAUC90 / IAUC90AIF. IAUC90BN The initial area under the contrast agent concentration-time curve at 180 seconds after the onset time, normalized with the corresponding arterial input function, such that IAUC180BN = IAUC180 / IAUC180AIF. IAUC180BN τm. The mean intracellular water lifetime (τi). Used in the Shutter-Speed Model (SSM) of tracer kinetics. tau_m vp. The fractional (not absolute) blood plasma volume per unit volume of tissue.See Tofts et al, "Estimating Kinetic Parameters From Dynamic Contrast-Enhanced T1-Weighted MRI of a Diffusable Tracer: Standardized Quantities and Symbols", Journal of Magnetic Resonance Imaging, vol. 10, pp. 223-232, 1999. vp A tracer diffusion kinetic model in which the permeability is assumed to be isodirectional.See P. Tofts, "Modeling tracer kinetics in dynamic Gd-DTPA MR imaging", Journal of Magnetic Resonance Imaging, vol. 7, pp. 91-101, 1997.Mathematically equivalent to the model proposed by Kety in a non-MRI context, hence sometimes refered to as the Tofts-Kety (TK) model. See Kety SS. The Theory and Applications of the Exchange of Inert Gas at the Lungs and Tissues. Pharmacological Reviews. 1951 Mar 1;3(1):1-41. Standard Tofts Model A tracer diffusion kinetic model in which the permeability is not assumed to be isodirectional, and which includes the contribution of tracer in the blood plasma to the total tissue concentration.See P. Tofts, "Modeling tracer kinetics in dynamic Gd-DTPA MR imaging", Journal of Magnetic Resonance Imaging, vol. 7, pp. 91-101, 1997. Extended Tofts Model A semiquantitative analysis of the contrast-enhancement concentration versus time curve that avoids the use of a pharmacokinetic model. Integration to compute the initial area under the curve. Model-free concentration-time quantitification A tracer diffusion kinetic model that accounts for the tumor leakage profile during the first pass of contrast.See Li, Ka-Loh, Xiao Ping Zhu, John Waterton, and Alan Jackson. "Improved 3D Quantitative Mapping of Blood Volume and Endothelial Permeability in Brain Tumors." Journal of Magnetic Resonance Imaging 12, no. 2 (2000): 347-357. doi:​10.1002/​1522-2586(200008)12:​2<347::AID-JMRI19>​3.0.CO;2-7. First Pass Leakage Profile Model A tracer diffusion kinetic model that does not assume that intercompartmental water molecule exchange is infinitely fast.See Li, Xin, Wei Huang, Thomas E. Yankeelov, Alina Tudorica, William D. Rooney, and Charles S. Springer. "Shutter-Speed Analysis of Contrast Reagent Bolus-Tracking Data: Preliminary Observations in Benign and Malignant Breast Disease." Magnetic Resonance in Medicine 53, no. 3 (2005): 724-29. doi:10.1002/mrm.20405. Shutter-Speed Model A tracer diffusion kinetic model that mathematically unifies the Tofts, Extended Tofts, Adiabatic Tissue Homogeneity, and Two Compartment Exchange modelsSee Schabel MC. A unified impulse response model for DCE-MRI. Magnetic Resonance in Medicine. 2012;68(5):1632-46. doi:10.1002/mrm.24162. Gamma Capillary Transit Time Model An adiabatic approximation to the tissue homogeneity tracer diffusion kinetic model, which assumes that the tracer concentration in parenchymal tissue changes slowly relative to that in capillaries.See St. Lawrence KS, Lee T-Y. An Adiabatic Approximation to the Tissue Homogeneity Model for Water Exchange in the Brain: I. Theoretical Derivation. J Cereb Blood Flow Metab. 1998 Dec;18(12):1365-77. doi:10.1097/00004647-199812000-00011. Adiabatic Tissue Homogeneity Model A tracer diffusion kinetic that incorporates the extracellular space of the lesion as a peripheral compartment, connected to the central (plasma) compartment by linear exchange processes in both directions.See Brix G, Semmler W, Port R, Schad LR, Layer G, Lorenz WJ. Pharmacokinetic Parameters in CNS Gd-DTPA Enhanced MR Imaging. Journal of Computer Assisted Tomography. 1991;15(4):621-8. Two Compartment Exchange Model T1 measurement by Multiple Flip Angles (MFA) (variable saturation) method T1 by Multiple Flip Angles T1 measurement by Inversion Recovery (IR) method T1 by Inversion Recovery Calculation was performed using a fixed value of T1 rather than a measured value. The value could be encoded as the value of (126353, DCM, "T1 Used For Calculation"). T1 by Fixed Value The fixed value of T1 used for a calculation. T1 Used For Calculation No Arterial Input Function was used. AIF Ignored A population-averaged Arterial Input Function. Population Averaged AIF An Arterial Input Function computed from a user-defined Region of Interest. User-defined AIF ROI An Arterial Input Function computed from an automatically detected Region of Interest. Automatically Detected AIF ROI A data-driven blind source separation (BSS) algorithm that estimates AIF from individuals without any presumed AIF model and initialization. See Lin, Yu-Chun, Tsung-Han Chan, Chong-Yung Chi, Shu-Hang Ng, Hao-Li Liu, Kuo-Chen Wei, Yau-Yau Wai, Chun-Chieh Wang, and Jiun-Jie Wang. "Blind Estimation of the Arterial Input Function in Dynamic Contrast-Enhanced MRI Using Purity Maximization." Magnetic Resonance in Medicine 68, no. 5 (November 1, 2012): 1439-49. doi:10.1002/mrm.24144. Blind Estimation of AIF The time at which the concentration-time curve achieves its peak for the first time. Used as a concept name for a value or as a method. Used as a method of calculation for BAT. See Shpilfoygel Med Phys 2008. doi:10.1118/1.1288669. Time of Peak Concentration The nominal time at which arrival of a contrast bolus is detected, which is used as a reference point for subsequent calculations. Used as a concept name for a value or as a method. No specific computational method is implied by this general definition. Abbreviated BAT. Bolus Arrival Time The time at which the concentration-time curve achieves half of its peak density for the first time. Used as a concept name for a value or as a method. Used as a method of calculation for BAT. See Shpilfoygel Med Phys 2008. doi:10.1118/1.1288669. Time of Leading Half-Peak Concentration A method of determining BAT that involves computing the temporal derivative of the concentration-time curve and selecting the time when the temporal derivative exceeds a specified threshold. See Shpilfoygel Med Phys 2008. doi:10.1118/1.1288669. Temporal Derivative Exceeds Threshold A threshold applied to the temporal derivative of the concentration-time curve. Used to establish BAT. See Shpilfoygel Med Phys 2008. doi:10.1118/1.1288669. Temporal Derivative Threshold The maximum rate of signal intensity change within a measured region of a time-activity curve. See Boonsirikamchai, Piyaporn, Harmeet Kaur, Deborah A. Kuban, Edward Jackson, Ping Hou, and Haesun Choi. "Use of Maximum Slope Images Generated From Dynamic Contrast-Enhanced MRI to Detect Locally Recurrent Prostate Carcinoma After Prostatectomy: A Practical Approach." American Journal of Roentgenology 198, no. 3 (March 1, 2012): W228-W236. doi:10.2214/AJR.10.6387. Maximum Slope The maximum degree of signal intensity change within a measured region of a time-activity curve. See Boonsirikamchai, Piyaporn, Harmeet Kaur, Deborah A. Kuban, Edward Jackson, Ping Hou, and Haesun Choi. "Use of Maximum Slope Images Generated From Dynamic Contrast-Enhanced MRI to Detect Locally Recurrent Prostate Carcinoma After Prostatectomy: A Practical Approach." American Journal of Roentgenology 198, no. 3 (March 1, 2012): W228-W236. doi:10.2214/AJR.10.6387. Maximum Difference Tracer concentration in tissue. In a DCE-MR experiment, the concentration of contrast agent in mmol/l. Tracer Concentration The degree to which a paramagnetic contrast agent can enhance the proton longitudinal relaxation rate constant (R1, 1/T1), normalized to the concentration of the contrast agent. Also referred to as r1. Typically expressed in units of l/mmol/s. Contrast Longitudinal Relaxivity The absolute flow rate of blood perfusing a region as volume per mass per unit of time. The mass divisor may be approximated by a measurement of volume assuming a tissue density of 1. Absolute Regional Blood Flow The absolute volume of blood perfusing a region as volume per mass. The mass divisor may be approximated by a measurement of volume assuming a tissue density of 1. Absolute Regional Blood Volume The percent of the oxygen removed from the blood by tissue during its passage through the capillary network. For example, as measured by blood oxygenation level dependent (BOLD) MR. See He, Xiang, and Dmitriy A. Yablonskiy. "Quantitative BOLD: Mapping of Human Cerebral Deoxygenated Blood Volume and Oxygen Extraction Fraction: Default State." Magnetic Resonance in Medicine 57, no. 1 (2007): 115-26. Oxygen Extraction Fraction The longitiudinal relaxation rate constant for the decay of longitiudinal magnetization caused by spin-lattice relaxation. The inverse of longitudinal relaxation time, i.e., R1 = 1/T1. R1 The transverse relaxation rate constant for the decay of transverse magnetization caused by spin-spin relaxation. The inverse of transverse relaxation time, i.e., R2 = 1/T2. R2 The transverse relaxation rate constant for the decay of transverse magnetization caused by a combination of spin-spin relaxation and magnetic field inhomogeneity. The inverse of transverse relaxation time, i.e., R2* = 1/T2*. R2* Magnetic Susceptibility is a measure of the amount of magnetization induced in a material when placed in an external magnetic field. It is the quantity encoded as the voxel intensity in Quantitative Susceptibility Map (QSM) images.It is a dimensionless quantity, usually recorded with units of parts per millions (ppm).See Liu T, Wisnieff C, Lou M, Chen W, Spincemaille P, Wang Y. Nonlinear formulation of the magnetic field to source relationship for robust quantitative susceptibility mapping. Magnetic Resonance in Medicine. 2013;69(2):467-76. .See Wang Y, Liu T. Quantitative susceptibility mapping (QSM): Decoding MRI data for a tissue magnetic biomarker. Magnetic Resonance in Medicine. 2015;73(1):82-101. . Magnetic Susceptibility The relative flow rate of blood perfusing a region. Obtained by dividing the absolute flow rate of blood perfusing a region by the absolute flow rate of blood perfusing a reference region. Relative Regional Blood Flow The relative volume of blood perfusing a region. Obtained by dividing the absolute volume of blood perfusing a region by the absolute volume of blood perfusing a reference region. Relative Regional Blood Volume A ratio of locally measured radioactivity concentration versus the injected radioactivity distributed evenly throughout the whole body.This general concept encompasses all specific methods of calculating the whole body volume of distribution, such as using body weight, lean body mass, body surface area, etc. Standardized Uptake Value Standardized Uptake Value calculated using body weight. The patient size correction factor for males and females is body weight.Defined in Sugawara et al. Reevaluation of the Standardized Uptake Value for FDG: Variations with Body Weight and Methods for Correction.Radiology, 1999 at SUVbw Standardized Uptake Value calculated using lean body mass by James method. The patient size correction factor for males is 1.10 * weight - (120 or 128) * (weight/height) ^2, and for females is 1.07 * weight - 148 * (weight/height) ^2.Defined in Sugawara et al. Reevaluation of the Standardized Uptake Value for FDG: Variations with Body Weight and Methods for Correction.Radiology, 1999 at , except that either 120 or 128 may be used as the multiplier parameter for males).Unfortunately, Sugawara used a parameter of 120 rather than 128, propagating an error in Morgan DJ, Bray KM. Lean Body Mass as a Predictor of Drug Dosage: Implications for Drug Therapy. Clinical Pharmacokinetics. 1994;26(4):292-307, which misquoted the original LBM definition that used 128 in James WPT, Waterlow JC. Research on Obesity: A Report of the DHSS/MRC Group. London: Her Majesty’s Stationery Office; 1976. Implementations differ in whether they have used 120 or 128 when using this code. See Kelly M. SUV: Advancing Comparability and Accuracy. Siemens; 2009. Available from: . SUVlbm Standardized Uptake Value calculated using body surface area. The patient size correction factor for males and females is weight^ 0.425 * height^0.725 * 0.007184.Defined in Sugawara et al. Reevaluation of the Standardized Uptake Value for FDG: Variations with Body Weight and Methods for Correction.Radiology, 1999 at SUVbsa Standardized Uptake Value calculated using ideal body weight. The patient size correction factor for males is 48.0 + 1.06 * (height - 152) and for females is 45.5 + 0.91 * (height - 152).Defined in Sugawara et al. Reevaluation of the Standardized Uptake Value for FDG: Variations with Body Weight and Methods for Correction.Radiology, 1999 at SUVibw Standardized Uptake Value calculated using lean body mass by Janmahasatian method. The patient size correction factor for males is 9.27E3 * weight / (6.68E3 + 216 * weight / (height^2)) and for females is 9.27E3 * weight / (8.78E3 + 244 * weight / (height^2)).Defined in Janmahasatian et al. Quantification of Lean Bodyweight. Clin Pharmacokinet. 2005 Oct 1;44(10):1051-65. at and its role in SUVlbm(Janma) calculation is discussed in Tahari et al. Optimum Lean Body Formulation for Correction of Standardized Uptake Value in PET Imaging. Journal of Nuclear Medicine. 2014 Sep 1;55(9):1481-4. at . SUVlbm(Janma) Standardized Uptake Value calculated using lean body mass by James method, using the originally published 128 multiplier for males. The patient size correction factor for males is 1.10 * weight - 128) * (weight/height) ^2, and for females is 1.07 * weight - 148 * (weight/height) ^2. SUVlbm(James128) Method of calculating Standardized Uptake Value using body weight. The patient size correction factor for males and females is body weight.Defined in Sugawara et al. Reevaluation of the Standardized Uptake Value for FDG: Variations with Body Weight and Methods for Correction.Radiology, 1999 at SUV body weight calculation method Method of calculating Standardized Uptake Value using lean body mass. The patient size correction factor for males is 1.10 * weight - (120 or 128) * (weight/height) ^2, and for females is 1.07 * weight - 148 * (weight/height) ^2.Defined in Sugawara et al. Reevaluation of the Standardized Uptake Value for FDG: Variations with Body Weight and Methods for Correction.Radiology, 1999 at Unfortunately, Sugawara used a parameter of 120 rather than 128, propagating an error in Morgan DJ, Bray KM. Lean Body Mass as a Predictor of Drug Dosage: Implications for Drug Therapy. Clinical Pharmacokinetics. 1994;26(4):292-307, which misquoted the original LBM definition that used 128 in James WPT, Waterlow JC. Research on Obesity: A Report of the DHSS/MRC Group. London: Her Majesty’s Stationery Office; 1976. Implementations differ in whether they have used 120 or 128 when using this code. See Kelly M. SUV: Advancing Comparability and Accuracy. Siemens; 2009. Available from: . SUV lean body mass calculation method Method of calculating Standardized Uptake Value using body surface area. The patient size correction factor for males and females is weight^ 0.425 * height^0.725 * 0.007184.Defined in Sugawara et al. Reevaluation of the Standardized Uptake Value for FDG: Variations with Body Weight and Methods for Correction.Radiology, 1999 at SUV body surface area calculation method Method of calculating Standardized Uptake Value using ideal body weight. The patient size correction factor for males is 48.0 + 1.06 * (height - 152) and for females is 45.5 + 0.91 * (height - 152).Defined in Sugawara et al. Reevaluation of the Standardized Uptake Value for FDG: Variations with Body Weight and Methods for Correction.Radiology, 1999 at SUV ideal body weight calculation method Janmahasatian method of calculating Standardized Uptake Value using lean body mass. The patient size correction factor for males is 9.27E3 * weight / (6.68E3 + 216 * weight / (height^2)) and for females is 9.27E3 * weight / (8.78E3 + 244 * weight / (height^2)).Defined in Janmahasatian et al. Quantification of Lean Bodyweight. Clin Pharmacokinet. 2005 Oct 1;44(10):1051-65. at and its role in SUVlbm(Janma) calculation is discussed in Tahari et al. Optimum Lean Body Formulation for Correction of Standardized Uptake Value in PET Imaging. Journal of Nuclear Medicine. 2014 Sep 1;55(9):1481-4. at . SUV lean body mass calculation Janmahasatian method James method of calculating Standardized Uptake Value using lean body mass with the originally published 128 multiplier for males. The patient size correction factor for males is 1.10 * weight - 128) * (weight/height) ^2, and for females is 1.07 * weight - 148 * (weight/height) ^2. SUV lean body mass calculation method using 128 multiplier A beta-amyloid PET radiotracer that is an analog of thioflavin T. Pittsburgh compound B C^11^ A beta-amyloid PET radiotracer. Florbetaben F^18^ A PHF-tau PET radiotracer. T807 F^18^ A nicotinic α4β2 receptor (nAChR) PET radiotracer. Flubatine F^18^ A radioconjugate consisting of n-acetylaspartylglutamate labeled with lutetium Lu 177 used as a radiotracer. Lutetium^177^ n-acetylaspartylglutamate A Cu 64 Monoclonal Antibody (mAb) PET Radiotracer. Monoclonal Antibody ^64^Cu A Zr 89 Monoclonal Antibody (mAb) PET Radiotracer. Monoclonal Antibody ^89^Zr A Zr 89 Trastuzumab PET Radiotracer. Trastuzumab ^89^Zr A Zr 89 Cetuximab PET Radiotracer. Cetuximab ^89^Zr A Zr 89 J591 PET Radiotracer. J591 ^89^Zr A Zr 89 cU36 PET Radiotracer. cU36 ^89^Zr A Zr 89 Bevacizumab PET Radiotracer. Bevacizumab ^89^Zr A Zr 89 cG250-F(ab')(2) PET Radiotracer. cG250-F(ab')(2) ^89^Zr A Zr 89 R1507 PET Radiotracer. R1507 ^89^Zr A Zr 89 E4G10 PET Radiotracer. E4G10 ^89^Zr A Zr 89 Df-CD45 PET Radiotracer. Df-CD45 ^89^Zr ^44^Scandium ^44^Scandium ^51^Manganese ^51^Manganese ^70^Arsenic ^70^Arsenic ^90^Niobium ^90^Niobium ^191m^Iridium ^191m^Iridium ^43^Scandium ^43^Scandium ^152^Terbium ^152^Terbium ^52m^Manganese ^52m^Manganese A Cu 60 ATSM PET radiotracer. ATSM Cu^60^ A Cu 61 ATSM PET radiotracer. ATSM Cu^61^ A Cu 62 ATSM PET radiotracer. ATSM Cu^62^ A C 11 Choline PET radiotracer. Choline C^11^ A C 11 Fallypride PET radiotracer. Fallypride C^11^ An F 18 Fallypride PET radiotracer. Fallypride F^18^ A C 11 FLB 457 PET radiotracer. FLB 457 C^11^ An F 18 Fluorotriopride PET radiotracer. Fluorotriopride F^18^ An F 18 Fluoromisonidazole PET radiotracer. Fluoromisonidazole (FMISO) F^18^ A C 11 Glutamine PET radiotracer. Glutamine C^11^ A C 14 Glutamine PET radiotracer. Glutamine C^14^ An F 18 Glutamine PET radiotracer. Glutamine F^18^ true Retired - Replaced with (126503, DCM, "Flubatine F^18^"). An F 18 Flubatine PET radiotracer. Flubatine F^18^ An F 18 2FA PET radiotracer. 2FA F^18^ An F 18 Nifene PET radiotracer. Nifene F^18^ An I 124 cancer targeted phospholipid ether PET radiotracer. CLR1404 I^124^ An I 131 cancer targeted phospholipid ether PET radiotracer. CLR1404 I^131^ true Retired - Replaced with (C4279748, UMLS, "THK5351 F^18^"). A PET radiotracer used for tau brain imaging.See Harada R, Okamura N, Furumoto S, Furukawa K, Ishiki A, Tomita N, et al. 18F-THK5351: A Novel PET Radiotracer for Imaging Neurofibrillary Pathology in Alzheimer Disease. Journal of Nuclear Medicine. 2016 Feb 1;57(2):208-14. doi:10.2967/jnumed.115.164848 THK5351 F^18^ A PET radiotracer used for myocardial perfusion imaging.See Yu M, Nekolla SG, Schwaiger M, Robinson SP. The Next Generation of Cardiac Positron Emission Tomography Imaging Agents: Discovery of Flurpiridaz F-18 for Detection of Coronary Disease. Seminars in Nuclear Medicine. 2011 Jul;41(4):305-13. doi:10.1053/j.semnuclmed.2011.02.004See SNMMI. Flurpiridaz. Flurpiridaz F^18^ A PET radiotracer used for tau brain imaging.See Wong DF, Comley R, Kuwabara H, Rosenberg PB, Resnick SM, Ostrowitzki S, et al. First in-human PET study of 3 novel tau radiopharmaceuticals: [11C]RO6924963, [11C]RO6931643, and [18F]RO6958948. J Nucl Med. 2018 May 4; doi:10.2967/jnumed.118.209916. RO6924963 ^11^C A PET radiotracer used for tau brain imaging.See Wong DF, Comley R, Kuwabara H, Rosenberg PB, Resnick SM, Ostrowitzki S, et al. First in-human PET study of 3 novel tau radiopharmaceuticals: [11C]RO6924963, [11C]RO6931643, and [18F]RO6958948. J Nucl Med. 2018 May 4; doi:10.2967/jnumed.118.209916. RO6931643 ^11^C A Zr 89 Obinituzimab PET Radiotracer. Obinituzimab ^89^Zr A Zr 89 Benralizumab PET Radiotracer. Benralizumab ^89^Zr A Zr 89 Ocaratuzumab PET Radiotracer. Ocaratuzumab ^89^Zr A Zr 89 Glembatumumab vedotin PET Radiotracer. Glembatumumab vedotin ^89^Zr A Zr 89 Pinatuzumab vedotin PET Radiotracer. Pinatuzumab vedotin ^89^Zr A Zr 89 Polatuzumab vedotin PET Radiotracer. Polatuzumab vedotin ^89^Zr A Zr 89 Blinatumomab PET Radiotracer. Blinatumomab ^89^Zr A Zr 89 Pegdinetanib PET Radiotracer. Pegdinetanib ^89^Zr A Zr 89 AGN-150998 PET Radiotracer. AGN-150998 ^89^Zr A Zr 89 MEDI-551 PET Radiotracer. MEDI-551 ^89^Zr A Zr 89 GA201 PET Radiotracer. GA201 ^89^Zr A Zr 89 Ecromeximab PET Radiotracer. Ecromeximab ^89^Zr A Zr 89 Roledumab PET Radiotracer. Roledumab ^89^Zr A Zr 89 XmAb5574 PET Radiotracer. XmAb5574 ^89^Zr A Zr 89 Brentuximab PET Radiotracer. Brentuximab ^89^Zr A Zr 89 Panitumumab PET Radiotracer. Panitumumab ^89^Zr A Zr 89 Rituximab PET Radiotracer. Rituximab ^89^Zr A Zr 89 Mogamulizumab PET Radiotracer. Mogamulizumab ^89^Zr A Zr 89 Ublituximab PET Radiotracer. Ublituximab ^89^Zr A Zr 89 Margetuximab PET Radiotracer. Margetuximab ^89^Zr A Zr 89 SAR3419 PET Radiotracer. SAR3419 ^89^Zr A Zr 89 Ranibizumab PET Radiotracer. Ranibizumab ^89^Zr A Zr 89 cMAb U36 PET Radiotracer. cMAb U36 ^89^Zr A Zr 89 DN30 PET Radiotracer. DN30 ^89^Zr A Zr 89 Fresolimumab PET Radiotracer. Fresolimumab ^89^Zr A Zr 89 TRC105 PET Radiotracer. TRC105 ^89^Zr A Zr 89 7E11 PET Radiotracer. 7E11 ^89^Zr A Zr 89 7D12 PET Radiotracer. 7D12 ^89^Zr A Zr 89 28H1 PET Radiotracer. 28H1 ^89^Zr A Zr 89 nanocolloidal albumin PET Radiotracer.See Heuveling et al. Pilot Study on the Feasibility of PET/CT Lymphoscintigraphy with 89Zr-Nanocolloidal Albumin for Sentinel Node Identification in Oral Cancer Patients. J Nucl Med. 2013 Apr;54(4):585-9. doi:10.2967/jnumed.112.115188. http://jnm.snmjournals.org/content/54/4/585.long Nanocolloidal albumin ^89^Zr A Zr 89 Anti-B220 PET Radiotracer. Anti-B220 ^89^Zr A Zr 89 RO5323441 PET Radiotracer. RO5323441 ^89^Zr A Zr 89 RO542908 PET Radiotracer. RO542908 ^89^Zr A PET radiotracer used for tau brain imaging.See Wong DF, Comley R, Kuwabara H, Rosenberg PB, Resnick SM, Ostrowitzki S, et al. First in-human PET study of 3 novel tau radiopharmaceuticals: [11C]RO6924963, [11C]RO6931643, and [18F]RO6958948. J Nucl Med. 2018 May 4; doi:10.2967/jnumed.118.209916. RO6958948 ^18^F A PET radiotracer targeting PMSA used for prostate cancer imaging.See Giesel FL, Hadaschik B, Cardinale J, Radtke J, Vinsensia M, Lehnert W, et al. F-18 labelled PSMA-1007: biodistribution, radiation dosimetry and histopathological validation of tumor lesions in prostate cancer patients. Eur J Nucl Med Mol Imaging. 2017 Apr 1;44(4):678–88. doi:10.1007/s00259-016-3573-4. PSMA-1007 F^18^ A PET radiotracer targeting PMSA used for prostate cancer imaging.See Afshar-Oromieh A, Hetzheim H, Kratochwil C, Benesova M, Eder M, Neels OC, et al. The Theranostic PSMA Ligand PSMA-617 in the Diagnosis of Prostate Cancer by PET/CT: Biodistribution in Humans, Radiation Dosimetry, and First Evaluation of Tumor Lesions. J Nucl Med. 2015 Nov 1;56(11):1697–705. doi: 10.2967/jnumed.115.161299. PSMA-617 Ga^68^ A Zr 89 Df-FK peptide PET Radiotracer.See Jacobsen O et al. MicroPET Imaging of Integrin αvβ3 Expressing Tumors Using 89Zr-RGD Peptides. Mol Imaging Biol. 2011 Dec; 13(6): 1224-1233. doi:10.1007/s11307-010-0458-y. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3137711/ Df-FK ^89^Zr A Zr 89 Df-FK-PEG(3) peptide PET Radiotracer.See Jacobsen O et al. MicroPET Imaging of Integrin αvβ3 Expressing Tumors Using 89Zr-RGD Peptides. Mol Imaging Biol. 2011 Dec; 13(6): 1224-1233. doi:10.1007/s11307-010-0458-y. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3137711/ Df-FK-PEG(3) ^89^Zr A Zr 89 Df-[FK](2) peptide PET Radiotracer.See Jacobsen O et al. MicroPET Imaging of Integrin αvβ3 Expressing Tumors Using 89Zr-RGD Peptides. Mol Imaging Biol. 2011 Dec; 13(6): 1224-1233. doi:10.1007/s11307-010-0458-y. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3137711/ Df-[FK](2) ^89^Zr A Zr 89 Df-[FK](2)-3PEG(4) peptide PET Radiotracer.See Jacobsen O et al. MicroPET Imaging of Integrin αvβ3 Expressing Tumors Using 89Zr-RGD Peptides. Mol Imaging Biol. 2011 Dec; 13(6): 1224-1233. doi:10.1007/s11307-010-0458-y. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3137711/ Df-[FK](2)-3PEG(4) ^89^Zr An I125 translocator protein (TSPO) SPECT tracer.See Wang H, Pullambhatla M, Guilarte TR, Mease RC, Pomper MG. Synthesis of [125I]IodoDPA-713, a New Probe for Imaging Inflammation. Biochem Biophys Res Commun. 2009 Nov 6;389(1):80–3. doi:10.1007/​10.1016/​j.bbrc.2009.08.102http://​www.ncbi.nlm.nih.gov/​pmc/​articles/​PMC2764231/ Iodinated I^125^ DPA-713 A C11 translocator protein (TSPO) PET tracer.See Endres CJ, Pomper MG, James M, Uzuner O, Hammoud DA, Watkins CC, et al. Initial Evaluation of 11C-DPA-713, a Novel TSPO PET Ligand, in Humans. J Nucl Med. 2009 Aug;50(8):1276–82. doi:10.2967/​jnumed.109.062265http://www.ncbi.nlm.nih.gov/​pmc/​articles/​PMC2883612/ DPA-713 ^11^C An F18 translocator protein (TSPO) PET tracer.See Vicidomini C, Panico M, Greco A, Gargiulo S, Coda ARD, Zannetti A, et al. In vivo imaging and characterization of [18F]DPA-714, a potential new TSPO ligand, in mouse brain and peripheral tissues using small-animal PET. Nuclear Medicine and Biology. 2015 Mar 1;42(3):309–16. doi:10.1016/​j.nucmedbio.2014.11.009 DPA-714 ^18^F Patient Support isocentric rotation (in the IEC FIXED REFERENCE Coordinate System) as defined by . DICOM represents this value as a Continuous Rotation Angle in degrees. IEC61217 Patient Support Continuous Yaw Angle Pitch of the Table Top (in the IEC TABLE TOP Coordinate System) as defined by . DICOM represents this value as a Continous Rotation Angle in degrees. IEC61217 Table Top Continuous Pitch Angle Roll of the Table Top (in the IEC TABLE TOP Coordinate System) as defined by . DICOM represents this value as a Continous Rotation Angle in degrees. IEC61217 Table Top Continuous Roll Angle Eccentric axis offset, in mm (in the IEC PATIENT SUPPORT Coordinate System) as defined by . IEC61217 Table Top Eccentric Axis Distance Table Top eccentric rotation (in the IEC TABLE TOP ECCENTRIC Coordinate System) as defined by . DICOM represents this value as a Continuous Rotation Angle in degrees. IEC61217 Table Top Continuous Eccentric Angle Lateral displacement of the table top, in mm (in the IEC TABLE TOP Coordinate System) as defined by . IEC61217 Table Top Lateral Position Longitudinal displacement of the table top, in mm (in the IEC TABLE TOP Coordinate system) as defined by . IEC61217 Table Top Longitudinal Position Vertical displacement of the table top, in mm (in the IEC TABLE TOP Coordinate System) as defined by . IEC61217 Table Top Vertical Position Rotation of the gantry (around the Y-axis of the IEC FIXED REFERENCE Coordinate System) as defined by . DICOM represents this value as a Continuous Rotation Angle in degrees. IEC61217 Gantry Continuous Roll Angle Pitch angle of rotation of the gantry around the X-axis of the IEC GANTRY Coordinate System. This parameter is not specifically defined by , but is consistent with . DICOM represents this value as a Continuous Rotation Angle in degrees. IEC61217 Gantry Continuous Pitch Angle Yaw angle of rotation of the gantry around the Z-axis of the IEC GANTRY Coordinate System This parameter is not specifically defined by , but is consistent with . DICOM represents this value as a Continuous Rotation Angle in degrees. IEC61217 Gantry Continuous Yaw Angle Patient SupportContinuous Pitch Angle at the isocenter position about the x-axis of the Equipment Coordinate System. Isocentric Patient Support Continuous Pitch Angle Patient Support Continuous Roll Angle at the isocenter position about the y-axis of the Equipment Coordinate System. Isocentric Patient Support Continuous Roll Angle Patient Support Continuous Yaw Angle at the isocenter position about the z-axis of the Equipment Coordinate System. Isocentric Patient Support Continuous Yaw Angle Patient Support Lateral Position along the x-axis of the Equipment Coordinate System. Isocentric Patient Support Lateral Position Patient Support Longitudinal Position along the y-axis of the Equipment Coordinate System. Isocentric Patient Support Longitudinal Position Patient Support Vertical Position along the z-axis of the Equipment Coordinate System. Isocentric Patient Support Vertical Position The body position of the imaging subject relative to the imaging equipment is with the subject's left side positioned towards the front of the equipment viewed from the front left first The body position of the imaging subject relative to the imaging equipment is with the subject's right side positioned towards the front of the equipment viewed from the front right first The body position of the imaging subject relative to the imaging equipment is with the subject's posterior (dorsal) side positioned towards the front of the equipment viewed from the front posterior first The body position of the imaging subject relative to the imaging equipment is with the subject's anterior (ventral) side positioned towards the front of the equipment viewed from the front anterior first The International Laboratory Code Registry (ILCR) of the Institute of Laboratory Animal Research (ILAR). See . ILCR A description of the conditions present during acquisition of images of small animals during preclinical research. Preclinical Small Animal Imaging Acquisition Context The conditions present related to the handling of an animal during a specified phase. Animal handling during specified phase A specified phase of handling of an animal (e.g., transport, preparation). Phase of animal handling A description of biosafety conditions (e.g., present during small animal handling for research). Biosafety conditions The reason that biosafety controls are in place. Reason for biosafety controls A description of heating conditions (e.g., present during small animal handling for research). Heating conditions A description of Circadian effects (e.g., present during small animal handling for research). Circadian effects A form of face mask that fits over the nose used for delivery of inhalational anesthesia (usually for small animals) Nose cone Cannula inserted in the nose used for delivery of inhalational anesthesia or other inhaled gases. Nasal cannula A route of administration of a substance via the retro-orbital venous sinus.Yardeni T et al. (2011). Retro-orbital injections in mice. Lab Animal, 40(5), 155-160. doi:10.1038/laban0511-155. Retro-orbital route The phase of handling of an animal that provides their normal environment between procedures. In home cage The phase of handling of an animal that is transport between environments. During transport The phase of handling of an animal that is staging prior to an imaging procedure (e.g., after removal from their home environment and transport cage, and awaiting preparation, induction or imaging). During this phase the animals are not subject to intervention (e.g., injection, catheterization) (cf. 127104, DCM, "Preparation for imaging")). Staging prior to imaging The phase of handling of an animal that is preparation prior to an imaging procedure that involves handling and intervention (e.g., such as injection, catheterization) (cf. 127103, DCM, "Staging prior to imaging")). Preparation for imaging The phase of handling of an animal during which the housing conditions are applicable. Housing role The manner in which animals are housed. Animal housing The room type in which racks of animal cages are housed. Animal room type The identifier of the room in which racks of animal cages are housed. Animal room identifier The manufacturer of the animal housing. Housing manufacturer The manufacturer's product name of the animal housing rack. Housing rack product name The manufacturer's product code of the animal housing rack. Housing rack product code The manufacturer's product name of the animal housing unit (or bottom of unit if separate lid). Housing unit product name The manufacturer's product code of the animal housing unit (or bottom of unit if separate lid). Housing unit product code The manufacturer's product name of the animal housing unit lid. Housing unit lid product name The manufacturer's product code of the animal housing unit lid. Housing unit lid product code The number of animal housing racks per room. Number of racks per room The number of animal housing units per rack. Number of housing units per rack The location of the housing unit in the rack. Housing unit location in rack The number of animals in a single housing (e.g., in a single cage, or in an animal carrier for imaging). Number of animals within same housing unit The sex of multiple animals contained in a single housing (cage). Sex of animals within same housing unit The sex of the animal handler(s). Sex of handler A group consisting of individuals of both sexes (both males and females). A group of animals in a cage, group of animal handlers. Mixed sex The total period of time that a subject spends in specified housing conditions. Total duration in housing The period of time between changes of housing conditions. Housing change interval The period of time between episodes of manual handling of the subject. Manual handling interval A description of the manner in which the housing unit is moved (e.g., how a cage is transported). Housing unit movement The width of the housing unit (e.g., cage). Housing unit width The height of the housing unit (e.g., cage). Housing unit height The length of the housing unit (e.g., cage). Housing unit length Whether or not the housing unit (e.g., cage) is individually ventilated. Housing individually ventilated How frequently the entire volume of air within a defined space is replaced (e.g., within an animal cage). Air changes Whether or not the housing unit has been previously used for different animals. Housing unit reuse The device (e.g., animal housing unit aka. cage) has not previously been used for different animals. Unused The device (e.g., animal housing unit aka. cage) has previously been used for different animals. Reused The manufacturer of the bedding material. Bedding manufacturer The manufacturer's product name of the bedding material. Bedding product name The manufacturer's product code of the bedding material. Bedding product code The volume of bedding material. Bedding volume The mass of bedding material. Bedding mass The depth of bedding material. Bedding depth Material provided to enrich the environment of a small animal for the purpose of reducing stress, improving health and/or improving reproducibility of results. Nesting material. Enrichment material The manufacturer of the material provided to enrich the environment of a small animal. Enrichment manufacturer Whether or not material is provided to enrich the environment of a small animal for the purpose of reducing stress, improving health and/or improving reproducibility of results. Nesting material. Enrichment material present Whether or not an exerciser device is present. Exerciser device present The type of shelter provided for small animals within their housing. Shelter type The manufacturer of the small animal shelter. Shelter manufacturer The manufacturer's product name of the small animal shelter. Shelter product name The manufacturer's product code of the small animal shelter. Shelter product code The manufacturer of the feed. Feed manufacturer The manufacturer's product name of the feed. Feed product name The manufacturer's product code of the feed. Feed product code The source of animal feed. Feed source Temperature is regulated by feedback from a temperature sensor used to control an active heating or cooling device. Feedback temperature regulation The total duration of single light-dark cycle (e.g., usually 24 hours). Total duration of light-dark cycle The time of day when the lights are turned on. Lights on time of day Igloo shaped small animal shelter Igloo Red translucent igloo-shaped small animal shelter Red translucent igloo Animal bedding material made from aspen chips. Aspen chip bedding Animal bedding material made from aspen shavings. Aspen shaving bedding Animal bedding material made from (milled) corn cobs. Corn cob bedding Animal bedding material made from paper. Paper-based bedding Animal bedding material made from pine chips. Pine chip bedding Animal bedding material made from pine shavings. Pine shaving bedding A device for measuring the temperature of the carrier (holder) used for small animal imaging as a means of monitoring or regulating the animal's temperature (e.g., a non-magnetic thermocouple embedded in or attached to the carrier for MRI). Carrier temperature sensor A method or device that uses forced hot air to maintain the body temperature of a subject. Forced air heater An imaging device that contains an integrated method of temperature regulation for maintaining the body temperature of the imaging subject. Heated imaging device A device that physically supports the patient and contains an integrated method of temperature regulation for maintaining the body temperature of the imaging subject (e.g., the carrier used for imaging a small animal such as a mouse). Heated patient support A blanket that uses circulating hot water to maintain the body temperature of a subject. Heated water blanket A pad that is pre-heated before use that is used to maintain the body temperature of a subject (e.g., pre-heated in a microwave or autoclave). Pre-heated pad No mechanism is used to maintain the body temperature of a subject. Unheated NIH Open Formula Rat and Mouse Ration - 18% Crude Protein Autoclavable.Specification at . NIH31 NIH07 open-formula, natural-ingredient rodent diet. NIH07 AIN76 purified diet. AIN76 AIN93 growth diet. AIN93G AIN93 maintenance diet. AIN93M Water that has been purified by reverse osmosis. Reverse osmosis purified water Water that has been purified by reverse osmosis and HCl acidified. Reverse osmosis purified, HCl acidified water Information about different anesthesia methods used during a procedure (from AQI Schema AnesthesiaMethodSetType. Anesthesia Method Set Information about a single anesthesia method used during a procedure (from AQI Schema AnesthesiaMethodType. Anesthesia Method Category of anesthesia technique used during a procedure (from AQI Schema AnesthesiaCategoryCodeType. Anesthesia Category Details of anesthesia technique used during a procedure (from AQI Schema AnesthesiaMethodType. Anesthesia SubCategory Information about airway management used during a procedure (from AQI Schema AirwayManagementSetType. Airway Management Set Type of airway management used during a procedure (from AQI Schema AirwayManagementMethodCodeType. Airway Management Method Subtype of airway management of airway management used during a procedure (from AQI Schema AirwayManagementSubMethodCodeType. Airway Sub-Management Method Set of medications applied during the anesthesia (from AQI Schema MedicationsSetType. Medications Set A gas that delivers an inhalational anesthetic to a subject (e.g., air, oxygen). Carrier gas A room for keeping and raising animals for observation or research (vivarium). Animal housing room A room for preparing a subject (such as a research small animal) prior to a procedure (such as an imaging procedure). Preparation room A room in which an imaging procedure is performed. Imaging procedure room A product that is locally manufactured (i.e., within the facility or institution). Locally manufactured product A food item that is out of the ordinary and provides pleasure. Food treat A substance from a source external to a subject. A homograft or xenograft (including tumor cells or tissue), fibrils, viruses, cytokines or toxins. Exogenous substance The tissue from which a substance originated. The tissue or organ from which a homograft or xenograft (including tumor cells or tissue) was obtained. Tissue of origin The taxonomic rank value (e.g., genus, subgenus, species or subspecies) from which a substance originated. The species of animal from which a homograft or xenograft (including tumor cells or tissue) was obtained. Taxonomic rank of origin An identifier of a group of animals that is genetically uniform. Strain A description of a group of animals that is genetically uniform. Strain description A system of names or descriptions used in a particular field. Nomenclature An identifier of a specific variation of a targeted gene or introduced transgene. Genetic modifications A description of a specific variation of a targeted gene or introduced transgene. Genetic modifications description The three dimensional coordinates that identify a (usually small) target within the body. For the purpose of ablation, biopsy, lesion, injection, stimulation, implantation or radiosurgery. Stereotactic coordinates The part of the imaging target that was used as a reference point associated with a specific Frame of Reference.The Position Reference Indicator may or may not coincide with the origin of the fixed frame of reference related to the Frame of Reference.For a Patient-related Frame of Reference, this is an anatomical reference point, often a well-known surface anatomical point. Position reference indicator Tumor cells or tissue or other material obtained from a donor intended to be implanted in a research subject. Tumor graft The kidney of an embryo. Used as the source of human embryonic kidney cell lines, though the concept is not specifically human. Embryonic Kidney Preformed fibrils of human alpha synuclein. Human alpha synuclein preformed fibrils Preformed fibrils of mouse alpha synuclein. Mouse alpha synuclein preformed fibrils Preformed fibrils of human Tau. Human Tau preformed fibrils Preformed fibrils of mouse Tau. Mouse Tau preformed fibrils true Retired - Replaced by (RID38696, RADLEX, "Non-ionic iodinated contrast agent").Replaces (96388005, SCT, "Non-ionic iodinated contrast agent"), which is retired in SNOMED CT (Duplicate). An iodine containing X-Ray contrast agent that does not dissociate in water, therefore, is lower in osmolality, and has a significantly lower incidence of adverse reactions than ionic iodinated contrast agents. Non-ionic iodinated contrast agent Unrestricted motion of a heart valve. A prolapsing mitral valve leaflet may be classified as non-flail or flail (abnormal leaflet coaptation or ruptured chordae). Heart valve flail The date that a glucose measurement was performed. Glucose Measurement Date The time that a glucose measurement was performed. Glucose Measurement Time A nuclear medicine imaging procedure using a single photon emissive radionuclide with tomographic reconstruction, over an anatomical extent of the entire body. SPECT of whole body A nuclear medicine imaging procedure using a single photon emissive radionuclide with tomographic reconstruction combined with transmissive X-Ray computed tomography for attenuation compensation, over an anatomical extent of the entire body. SPECT CT of whole body The task is to add an addendum to an existing report. Add Addendum to Report The imaging study to be read involves the specified modality Modality to Read The specialty of the reader of the imaging study Reader Specialty The type of report that is being requested. Report Requested A final report is a report that is expected to contain all information and all the reportable findings. Final Report A medical specialty concerned with abdominal imaging. Abdominal Imaging Specialty A medical specialty concerned with cardiac imaging. Cardiac Imaging Specialty A medical specialty concerned with head and neck imaging. Head and Neck Imaging Specialty A medical specialty concerned with musculoskeletal imaging. Musculoskeletal Imaging Specialty A medical specialty concerned with neurology. Neurology Specialty A medical specialty concerned with neuroradiologic imaging. Neuroradiology Imaging Specialty A medical specialty concerned with obstetric and gynecologic imaging. OB/Gyn Imaging Specialty A medical specialty concerned with oncologic imaging. Oncologic Imaging Specialty A medical specialty concerned with oncology. Oncology Specialty A medical specialty concerned with thoracic imaging. Thoracic Imaging Specialty A medical specialty concerned with pediatric imaging. Pediatric Imaging Specialty A medical specialty concerned with vascular imaging. Vascular Imaging Specialty Fetal body weight growth percentile estimated from gestational age by method of Campbell 1991.See Campbell WA, Nardi D, Vintzileos AM, Rodis JF, Turner GW, Egan JF. Transverse Cerebellar Diameter/Abdominal Circumference Ratio Throughout Pregnancy: A Gestational Age-Independent Method to Assess Fetal Growth. Obstetrics & Gynecology. 1991;77(6):893-6. Available at: . Replaces the use of LN:33183-5. FWP by GA, Campbell, 1991 Fetal body weight growth percentile estimated from gestational age by method of Hadlock 1991.See Hadlock FP, Harrist RB, Martinez-Poyer J. In utero analysis of fetal growth: a sonographic weight standard. Radiology. 1991 Oct 1;181(1):129-33. DOI:10.1148/radiology.181.1.1887021. Available at: . Replaces the incorrect use of LN:33183-5. FWP by GA, Hadlock, 1991 A plane passing through the superior extent (i.e., towards the head) of the referenced feature Plane through Superior Extent A plane passing through the inferior extent (i.e., towards the feet) of the referenced feature Plane through Inferior Extent A plane passing through the proximal extent (i.e., towards the torso) of the referenced feature Plane through Proximal Extent A plane passing through the distal extent (i.e., towards the end of the extremity) of the referenced feature Plane through Distal Extent A plane passing through the medial extent (i.e., towards the midline of the body) of the referenced feature Plane through Medial Extent A plane passing through the lateral extent (i.e., away from the midline of the body) of the referenced feature Plane through Lateral Extent A plane passing through the leftmost extent of the referenced feature Plane through Leftmost Extent A plane passing through the rightmost extent of the referenced feature Plane through Rightmost Extent A plane passing through the anterior extent of the referenced feature Plane through Anterior Extent A plane passing through the posterior extent of the referenced feature Plane through Posterior Extent A plane passing approximately through the center of the referenced feature Plane through Center The geometric center point of a feature, such as an organ, implanted device or morphologic anomaly. Geometric Centerpoint The center of mass of a feature, such as an organ, implanted device or morphologic anomaly Center of Mass Point in an image or space from which segmentation is initiated, e.g., by region growing. May be selected by a human or an algorithm.Not necessarily the center of the feature being segmented. Seed point Point in an image or space that is representative (serves as an example or type for others of the same classification) of a feature, such as an organ, implanted device or morphologic anomaly. Not necessarily the center of the feature being segmented. Representative point Point in an image or space on the boundary of a feature, such as an organ, implanted device or morphologic anomaly. Boundary point The procedure is contraindicated for patients with impaired renal function. Impaired Renal Function Positioning the patient based on alignment of laser cross-hairs. Laser Cross-hairs The anatomical region represented in the acquired data. Acquired Volume Organizational department or section responsible for Abdominal Radiology Abdominal Radiology Organizational department or section responsible for Biomedical Engineering Biomedical Engineering Organizational department or section responsible for Cardiovascular Radiology Cardiovascular Radiology Organizational department or section responsible for Information Technology Information Technology Organizational department or section responsible for Medical Physics Medical Physics Organizational department or section responsible for Musculoskeletal Radiology Musculoskeletal Radiology Organizational department or section responsible for Pediatric Radiology Pediatric Radiology Organizational department or section responsible for Thoracic Radiology Thoracic Radiology Instances available as input for a general radiotherapeutic workflow. For RT Workflow Instances used to make a diagnosis. Diagnostic Source Images Instances created during a segmentation session. Segmentation Result Instances created during a spatial registration. Registration Result Instances created during preparation prior to planning. Pre-Planning Result Instances created for prescription of a radiotherapeutic treatment. RT Prescription Result Image instances that represent an image series that is intended to be the primary input for the dose calculation. Any parameters required for dose calculation (such as electron density) is derived from this series. Dose Calculation Image Series Image instances that represent an image series from which the display coordinate system for a radiotherapeutic treatment planning is derived. Typically this series does not provide the parameters required for the dose calculation. Coordinate Alignment Image Series Instances created during the simulation of a radiotherapeutic treatment delivery session. May also include input objects actually used. RT Treatment Simulation Result Instances created during the planning of a radiotherapeutic treatment. May also include input objects actually used. RT Planning Result Instances created during the creation of the dosimetric result of a radiotherapeutic treatment plan. May also include input objects actually used. Dosimetric Result Instances created during the verification of the patient’s treatment position. May also include input objects actually used. Patient Setup Verification Result Instances created during the treatment session. May also include input objects actually used. RT Treatment Session Result Instances created during a treatment course. May also include input objects actually used. RT Treatment Course Summary Instances created during evaluation of the treatment delivery quality. May also include input objects actually used. RT Treatment QA Result Instances available to make a diagnosis. For Diagnosis Instances available for segmentation. For Segmentation Instances available for prescribing a radiotherapeutic treatment delivery. For RT Prescription Instances available for creating a radiotherapeutic treatment plan. For RT Treatment Planning Instances available for comparing plans. For Plan Comparison Instances available to combine radiotherapeutic plans or doses. For RT Plan Summation Instances available for review by a physician. For Physician Review Instances available for review by a physicist. For Physicist Review Instances available for review of a tumor board. For Tumor Board Instances available to perform quality assurance of a radiotherapeutic treatment delivery plan. For Plan Quality Assurance Instances available to perform quality assurance of one of the hardware or software components involved in a radiotherapeutic treatment delivery. For Machine Quality Assurance Instances available for verification of the patient treatment position. For Patient Setup Verification Instances available for submission for a clinical trial study. For Clinical Trial Submission Instances available for submission to a tumor registry. For Tumor Registry Instances used as an input of a general radiotherapeutic workflow. RT Workflow Input Used Instances used for prescribing a radiotherapeutic treatment delivery. RT Prescription Input Used Instances used to create a radiotherapeutic treatment plan. RT Treatment Planning Input Used Instances used to combine radiotherapeutic plans or doses. RT Plan Summation Input Used Instances used for review by a physician. Physician Review Input Used Instances used for review by a physicist. Physicist Review Input Used Instances used to perform quality assurance of a radiotherapeutic treatment delivery plan. Plan Quality Assurance Input Used Instances used to perform quality assurance of one of the hardware or software components involved in a radiotherapeutic treatment delivery. Machine Quality Assurance Input Used Instances used during verification of the patient treatment position. Patient Setup Verification Input Used Instances used to make a diagnosis. Diagnosis Input Used Instances used for segmentation. Contouring Input Used Instances used for comparing plans. Plan Comparison Input Used Instances used for review of a tumor board. Tumor Board Input Used Instances submitted to a tumor registry. Tumor Registry Input Used Instances submitted to a clinical trial study. Clinical Trial Submission Input Used Measurement used as the source for derivation. Source measurement Report used as the source for derivation. Source report Raw Data used as the source for derivation. Source raw data Real world value map used as the source for derivation. The map applied to source images before processing them, such as for a threshold based segmentation operation. Source real world value map Segmentation used as the source for derivation. The binary segmentation that was converted to a labelmap segmentation, or vice versa. Source segmentation Name of an MR pulse sequence for annotation purposes. Potentially vendor-specific name. Pulse Sequence Name A structural image used for image processing. Structural image for image processing A flow image used for image processing. Flow image for image processing OCT angiography method that de-correlates the amplitudes between two consecutive B-scans from the narrowed spectral bands was computed, and all the decorrelation values within certain repeated B-scans were averaged to visualize blood vessels. Methods and algorithms for optical coherence tomography-based angiography: a review and comparison. Anqi Zhang ; Qinqin Zhang ; Chieh-Li Chen ; Ruikang K. Wang (2015). See http://biomedicaloptics.spiedigitallibrary.org/​article.aspx?​articleid=​2464650#​QuantitativeComparisons. OCT-A amplitude decorrelation OCT angiography method based on variations in the complex (amplitude and phase) OCT signal from repeated B-scans at the same location. There are a number of factors that may cause a change in the OCT signal frequency relative to the signal due to static tissue background. These factors include, for example, the Doppler effect that induces optical frequency shift and the change in backscattering due to the particles that are moving in and out of the OCT-probe volume during imaging. The changes in signal frequency cause the changes in both the amplitude and the phase of the OCT signal. Comparison of the complex (amplitude and phase) signal from repeated B-scans at the same location provides an image that has higher contrast in areas of erythrocyte motion. This method is referred to as OCT-based micro-angiography - complex (OMAGC). OCT-A complex variance OCT angiography method that analyzes the temporal or spatial statistics of the intensity of speckle from OCT images and identifies blood vessels. OCT-A speckle variance OCT angiography method that differentiates flow regions. Static regions usually have high correlation values while flow regions have lower correlation values. OCT-A correlation mapping OCT angiography method that utilizes the Doppler phase resolved information to provide the velocity of flow. Sometimes referred to as the phase variance method. Doppler OCT-A Image using pseudo colors to illustrate multiple OPTENF images obtained at various depth levels within the retina from the OPT flow volume. Retina depth encoded vasculature flow Image using pseudo colors to illustrate multiple OPTENF images obtained at various depth levels within the retina from the OPT structural volume. Retina depth encoded structural reflectance map Image that illustrates the vasculature flow within the entire retina. Generated from the OPT flow volume with pixels approximately from inner limiting membrane (ILM) to photoreceptor inner segment/ellipsoid region (ISe). Retina vasculature flow Image that illustrates the OCT structural reflectance within the entire retina. Generated from the OPT structural volume with pixels approximately from inner limiting membrane (ILM) to photoreceptor inner segment/ellipsoid region (ISe). Retina structural reflectance map Image that illustrates the vasculature flow within the vitreous. Generated from the OPT flow volume with pixels approximately from a selected location anterior to ILM, to ILM. This space/potential space is referred clinically as the Vitreo-retinal Interface (VRI). Vitreous vasculature flow Image that illustrates the OCT structural reflectance within the vitreous. Generated from the OPT structural volume with pixels approximately from a selected location that is anterior to ILM, to ILM. This space/potential space is referred clinically as the Vitreo-retinal Interface (VRI). Vitreous structural reflectance map Image that illustrates the OCT vasculature flow within the RNFL around the optic disk. Generated from the OPT flow volume with pixels approximately from ILM to the outer boundary of the RNFL. Radial peripapillary vasculature flow Image that illustrates the OCT structural reflectance within the RNFL around the optic disk. Generated from the OPT structural volume with pixels approximately from ILM to the outer boundary of the RNFL. Radial peripapillary structural reflectance map Image that illustrates the vasculature flow within the anterior layers of retina. Generated from the OPT flow volume with pixels approximately from ILM to ganglion cell layer/inner plexiform layer (GCL/IPL). Superficial retina vasculature flow Image that illustrates the OCT structural reflectance within the anterior layers of retina. Generated from the OPT structural volume with pixels approximately from ILM to ganglion cell layer/inner plexiform layer (GCL/IPL). Superficial retina structural reflectance map Image that illustrates the vasculature flow in the capillaries that connect the superficial and deeper capillary beds. Generated from the OPT flow volume with pixels approximately at the level of the IPL. Sometimes referred to as the intermediate retina flow. Middle inner retina vasculature flow Image that illustrates the OCT structural reflectance in the capillaries that connect the superficial and deeper capillary beds. Generated from the OPT structural volume with pixels approximately at the level of the IPL. Sometimes referred to as the intermediate retina flow. Middle inner structural reflectance map Image that illustrates the vasculature flow at the level of the plexiform layers within the retina. Generated from the OPT flow volume with pixels approximately from inner plexiform layer (IPL) to outer plexiform layer (OPL). Deep retina vasculature flow Image that illustrates the structural reflectance at the level of the plexiform layers within the retina. Generated from the OPT structural volume with pixels approximately from inner plexiform layer (IPL) to outer plexiform layer (OPL). Deep retina structural reflectance map Image that illustrates the vasculature flow at the level of the posterior layers of the retina (outer retina). Generated from the OPT flow volume with pixels approximately in the translucent layers, from OPL to ISe. Sometimes referred to as flow in the deep avascular structure. Note For normal eyes, this image would not show detectable vascular flow. Outer retina vasculature flow Image that illustrates the structural reflectance at the level of the posterior layers of the retina (outer retina). Generated from the OPT structural volume with pixels approximately in the translucent layers, from OPL to ISe. Outer retina structural reflectance map Image that illustrates the vasculature flow at the level of the chroriocapillaris. Generated from the OPT flow volume with pixels approximately below the retinal pigment epithelium (RPE) encompassing the thickness of choriocapillaris. Choriocapillaris vasculature flow Image that illustrates the structural reflectance at the level of the chroriocapillaris. Generated from the OPT structural volume with pixels approximately below the retinal pigment epithelium (RPE) encompassing the thickness of choriocapillaris. Choriocapillaris structural reflectance map Image that illustrates the vasculature flow at the level of the choroid. Generated from the OPT flow volume with pixels approximately below RPE, encompassing the thickness of choroid. Choroid vasculature flow Image that illustrates the structural reflectance at the level of the choroid. Generated from the OPT structural volume with pixels approximately below RPE, encompassing the thickness of choroid. Choroid structural reflectance map Image that illustrates the vasculature flow at the entire posterior segment, including retina and choroid. Generated from the OPT flow volume with pixels encompassing the entire OCT scan. Whole eye vasculature flow Image that illustrates the structural reflectance from the entire posterior segment, including retina and choroid. Generated from the OPT structural volume with pixels encompassing the entire OCT scan. Whole eye structural reflectance map A series of densely spaced, parallel B-scans of the same length covering an area. Cube B-scan pattern A series of sparsely spaced, parallel B-scans of the same length covering an area. Raster B-scan pattern A single line B-scan. Line B-scan pattern A series of B-scans arranged in a radial pattern of the same length covering an area. Radial B-scan pattern A pair of horizontal and vertical B-scans in a cross pattern. Cross B-scan pattern A single circular pattern B-scan. Circle B-scan pattern A series of concentric circular pattern B-scans with various diameters. Concentric circle B-scan pattern A series of concentric circular pattern B-scans with various diameters combined with a series of raster B-scan patterns. Circle-raster B-scan pattern A series of concentric circular pattern B-scans with various diameters combined with a series of radial B-scan patterns. Circle-radial B-scan pattern A series of vertical and horizontal B-scans. Grid B-scan pattern Retinal surface located approximately at the outer boundary of the retinal nerve fiber layer (RNFL). Outer surface of RNFL Retinal surface approximately at the outer boundary of the Ganglion Cell Layer (GCL). Outer surface of GCL Retinal surface located approximately at the outer boundary of the Inner Plexiform Layer (IPL). Outer surface of IPL Retinal surface located approximately at the outer boundary of the Inner Nuclear Layer (INL). Outer surface of INL Retinal surface located approximately at the outer boundary of the Outer Plexiform Layer (OPL). Outer surface of OPL Retinal surface located approximately at the outer boundary of the Henle Fiber Layer (HFL) when present. Outer surface of HFL Retinal surface approximately located at the boundary between the Inner Segments and Outer Segments of the photoreceptors. Surface between Inner and Outer Segments of the photoreceptors Retinal surface located approximately at the retina-RPE interdigitation zone when present. Surface of the interdigitation zone between retina and RPE Inner surface of the Retinal Pigment Epithelium (RPE). Inner surface of the RPE Segmentation surface located approximately at the center of the Retinal Pigment Epithelium (RPE). Surface of the center of the RPE Outer surface of the Retinal Pigment Epithelium (RPE). Outer surface of the RPE Retinal surface located approximately at the outer boundary of the Bruch’s Membrane (BM). Outer surface of Bruch’s Membrane Retinal surface located approximately at the choroid-sclera interface (SC). Surface of the choroid-sclera interface Retinal surface located approximately at the outer boundary of the choriocapillaris (CC). Outer surface of the CC Values are derived from performing analysis on OCT B-scans OCT B-scan analysis OCT angiography method that utilizes a one-sided ratio on a pixel by pixel basis between various combinations of B-scan repetitions. The ratio is inverted when necessary such that values are less than or equal to one. Individual ratio calculations are averaged or combined across eligible frame combinations for each pixel in the OCT image. OCT-A one-sided ratio (lesser) OCT angiography method that utilizes a one-sided ratio on a pixel by pixel basis between various combinations of B-scan repetitions. The ratio is inverted when necessary such that values are greater than or equal to one. Individual ratio calculations are averaged or combined across eligible frame combinations for each pixel in the OCT image. OCT-A one-sided ratio (greater) Image that illustrates the vascular flow within the posterior layers of the retina, approximately from the posterior border of the outer plexiform layer (OPL) to the level of Bruch’s Membrane (BM). For normal eyes, this image would not show detectable vascular flow. Avascular complex flow Image that illustrates the structural reflectance within the posterior layers of the retina, approximately from the outer plexiform layer (OPL) to the level of Bruch’s Membrane (BM). Avascular complex map Image that illustrates the vascular flow within the anterior layers of retina, approximately from the posterior border of the retinal nerve fiber layer (RNFL) to the inner plexiform layer (IPL). Superficial vascular plexus flow Image that illustrates the structural reflectance within the anterior layers of retina, approximately from the posterior border of the retinal nerve fiber layer (RNFL) to inner plexiform layer (IPL). Superficial vascular plexus map Image that illustrates the vascular flow within the plexiform layers of the retina, approximately from within the inner Nuclear layer (INL) to posterior border of the outer plexiform layer (OPL) Deep capillary plexus flow Image that illustrates the structural reflectance within the plexiform layers of the retina, approximately from within the Inner Nuclear Layer (INL) to posterior border of the outer plexiform layer (OPL). Deep capillary plexus map Image that illustrates the vascular flow within the retinal nerve fiber layer (RNFL), approximately from inner limiting membrane (ILM) to the outer boundary of the RNFL. RNFL vascular plexus flow Image that illustrates the structural reflectance within the retinal nerve fiber layer (RNFL), approximately from inner limiting membrane (ILM) to the outer boundary of the RNFL. RNFL vascular plexus map Image that illustrates the vascular flow within a volume selected by the user User selected volume flow Image that illustrates the structural reflectance within a volume selected by the user User selected volume structure map Image that illustrates the vasculature flow within the posterior layers of the retina (including the outer retina), approximately from the posterior boundary of the outer plexiform layer (OPL) to the inner choriocapillaris (CC). ORCC vasculature flow Image that illustrates the structural reflectance within the posterior layers of the retina (including the outer retina), approximately from posterior boundary of the outer plexiform layer (OPL) to the inner choriocapillaris (CC). ORCC structural reflectance map Inner surface of the retinal ellipsoid zone, also known as the photoreceptor inner segment/outer segment (IS/OS) junction Inner surface of the ellipsoid zone Segmentation surface located approximately midway between the inner and outer surfaces of the retinal ellipsoid zone Midline of the ellipsoid zone Outer surface of the retinal ellipsoid zone, also known as the photoreceptor inner segment/outer segment (IS/OS) junction Outer surface of the ellipsoid zone Inner surface of the retinal interdigitation zone Inner surface of the interdigitation zone Outer surface of the retinal interdigitation zone Outer surface of the interdigitation zone Report title for the report of estimated absorbed energy from ionizing radiation to a patient. Patient Radiation Dose Report Estimate of absorbed energy from ionizing radiation. Radiation Dose Estimate Name used to identify a radiation dose estimate. Radiation Dose Estimate Name A mathematical description of a patient model for estimating radiation dose that describes or is thought of as having a human form or human attributes. Anthropomorphic Model Thickness of the breast. Breast Thickness Boundary based representation of the model for the estimation of radiation transport and absorbed dose in materials. BREP Radiation Transport Model Normalized Mean Glandular Dose (DgN) is the conversion value used to calculate the absorbed dose from radiation to the fibroglandular tissue component of the breast from the exposure in air. DgN The size of a patient in the anterior-posterior dimension. Patient AP Dimension The size of a patient in the lateral dimension. Patient Lateral Dimension Conversion factor for Size Specific Dose Estimate (SSDE) calculations from CTDIvol. SSDE Conversion Factor Scattering of radiation in a direction opposite to that of the incident radiation. Backscatter The description of the representation of the estimated absorbed energy to an organ, a set of organs or the whole body, e.g., surface segmentation, mesh, parametric map, RT dose , Secondary Capture SOP Instances, etc. Radiation Dose Estimate Representation The form of the representation used to describe the distribution of the radiation dose. Distribution Representation The absorbed energy data estimated by the method. Radiation Dose Representation Data The methodology and parameters used to estimate the radiation dose to an organ, the whole body or a phantom. Radiation Dose Estimate Methodology Reference to an SR instance used. SR Instance Used The type of model used to define the shape, size, location of objects, etc. to represent a patient or phantom for use in radiation transport analysis. Patient Model Type A simple object (e.g., cylinder) used to model a patient or organ. Simple Object Model The type of model used to estimate energy transport and absorbed dose in materials. Radiation Transport Model Type A model that uses geometrical shapes for the estimation of radiation transport and absorbed dose in materials. Geometric Radiation Transport Model A model that uses volumetric elements for the estimation of radiation transport and absorbed dose in materials. Voxelized Radiation Transport Model A model that uses a mesh structure representation for the estimation of radiation transport and absorbed dose in materials. Mesh Radiation Transport Model A model that uses surfaces of a non-uniform rational B-spline (NURBS) based representation for the estimation of radiation transport and absorbed dose in materials. NURBS Radiation Transport Model The data from the model used to estimate radiation dose to a patient or organ. Patient Radiation Dose Model Data Rationale or reference to the methodology for the model used in the estimation of radiation dose. Patient Radiation Dose Model Reference The demographics for which the patient model used by the radiation dose estimation method is intended. Patient Model Demographics The minimum age used in the patient model in the radiation dose estimation method. Model Minimum Age Unique Identifier of an event used. Event UID Used The maximum age used in the patient model in the radiation dose estimation method. Model Maximum Age A material placed in the radiation beam that is used to completely attenuate the beam in a specific region of the field of view. Beam Block Ratio of the absorbed dose at a given depth in tissue to the absorbed dose at the same point in air. Tissue Air Ratio The parameters used in the algorithms for determining the radiation dose to a patient, organs, or any material. Radiation Dose Estimate Parameters Reference to the SOP Instance that describes the parameters and values used in the algorithms for determining the radiation dose to a patient, organs, or any material. Radiation Dose Composite Parameters The sex used in the patient model in the radiation dose estimation method. Model Patient Sex The minimum weight used in the patient model in the radiation dose estimation method. Model Minimum Weight The minimum height used in the patient model in the radiation dose estimation method. Model Minimum Height The maximum weight used in the patient model in the radiation dose estimation method. Model Maximum Weight The maximum height used in the patient model in the radiation dose estimation method. Model Maximum Height Reference to the Spatial Registration instance or Deformable Spatial Registration instance. Spatial Registration Reference Name of the method used to register the frame of reference for two or more sets of data. Registration Method Reference to Spatial Fiducials SOP Instance. Spatial Fiducials A factor used to make an adjustment to a calculation to account for deviations. Correction Factor A value used in a mathematical function to create a curve or a function that approximates a set of data. Curve Fit Parameter A value used to describe the uniformity or composition of data or a material that relates to the same degree of variability. Homogeneity Factor The spatial registration used in the patient model in the radiation dose estimation method. Patient Model Registration Attenuator in the radiation beam that may alter the estimated radiation dose to the patient, organs, or phantoms. X-Ray Beam Attenuator The type of object in the radiation beam that may alter the estimated radiation dose to the patient, organs, or phantoms. Attenuator Category The table a patient is sitting, standing, or lying on and that is in the radiation beam such that it may alter the estimated radiation dose to the patient, organs, or phantoms. Table The core material of a table a patient is sitting, standing, or lying on and that is in the radiation beam such that it may alter the estimated radiation dose to the patient, organs, or phantoms. Table Core The outer shell of a table a patient is sitting, standing, or lying on and that is in the radiation beam such that it may alter the estimated radiation dose to the patient, organs, or phantoms. Table Outer Liner The padding on a table a patient is sitting, standing, or lying on and that is in the radiation beam such that it may alter the estimated radiation dose to the patient, organs, or phantoms. Table Pad true Retired Parameters used in mathematical, simulation, or empirical calculations for radiation dose estimation. Radiation Dose Estimate Parameter Type The equivalent material used to estimate the reduction in radiation intensity. Equivalent Attenuator Material An explanation of the actual attenuator material used in the estimation of radiation dose. Attenuator Description The thickness of a specified material that provides the same attenuation as the actual attenuator. Equivalent Attenuator Thickness The stored data from the model used to represent the X-Ray beam attenuator. X-Ray Attenuator Model Data Model of the attenuator used in the estimation of radiation dose. X-Ray Beam Attenuator Model Reference to the methodology or rationale for the model of the beam attenuator used in the estimation of radiation dose. X-Ray Beam Attenuator Model Reference Spatial registration of the beam attenuator model. X-Ray Beam Attenuator Model Registration The container for the radiation dose estimation methods and parameters. Radiation Dose Estimate Method Type of method used to estimate the radiation dose to a patient, organs or phantoms. Radiation Dose Estimate Method Type Algorithms that use a table of values indexed by a key. Tabular Data Algorithm Algorithms that use mathematical models that have a deterministic result. Analytical Algorithm Algorithms that use mathematical models that use parameters derived from observation. Empirical Algorithm A reference to the methodology or rationale for the estimation methodology used for the estimation of radiation dose. Radiation Dose Estimate Method Reference Representation of radiation dose of equal intensity as a surface, curve, or line. Isodose Representation of radiation dose intensity at the surface on the skin. Skin Dose Map Representation of radiation dose as a 3D shape or object. 3D Dose Map Representation of the change in radiation dose with respect to the change in another variable. Often represented as a change with respect to time or distance. Dose Gradient Material that is in radiation beam that is used to provide physical support to the patient or other objects. Patient Support A model for estimating radiation dose defined from the actual patient anatomy or characteristics. Patient Segmented Model Radiation dose represented as a distribution of points. Dose Point Cloud The measured amount of energy that is deposited in a material by ionizing radiation. Measured Radiation Dose A computational representation of a human body or other object used to simulate the attenuation of radiation in human tissue. Patient Radiation Dose Model A reference to the methodology used to determine the uncertainty in the estimation of radiation dose. Reference to Uncertainty Determination Method Absorbed dose to a tissue or organ multiplied by a quality factor to normalize the dose to the type of radiation that is depositing the dose. Equivalent Dose Energy from ionizing radiation absorbed per unit mass. Absorbed Dose A factor that is used to make an adjustment to a calculation to normalize the data. Normalization Factor A factor that is used to make an adjustment to a calculation to translate or move the data in a defined manner. Offset Factor The amount of a specific tissue content, either mass or volume, in a material. Tissue Fraction A correction factor for a measurement of distance or location. Distance Correction A numerical ratio to express a measurement from one unit to another unit. Conversion Factor The largest absorbed radiation dose amount estimated. Maximum Absorbed Radiation Dose The smallest absorbed radiation dose value estimated. Minimum Absorbed Radiation Dose The average value of the absorbed radiation dose estimated. Mean Absorbed Radiation Dose The absorbed radiation dose value estimated that occurs most frequently. Mode Absorbed Radiation Dose The largest equivalent radiation dose value estimated. Maximum Equivalent Radiation Dose The smallest equivalent radiation dose value estimated. Minimum Equivalent Radiation Dose The average value of the equivalent radiation dose estimated. Mean Equivalent Radiation Dose The equivalent radiation dose value estimated that occurs most frequently. Mode Equivalent Radiation Dose The central value of the absorbed radiation dose estimated. Median Absorbed Radiation Dose The central value of the equivalent radiation dose estimated. Median Equivalent Radiation Dose This acquisition of data (e.g., for constructing an image) is a repeat of an earlier acquisition that was for some reason unsatisfactory. Is Repeated Acquisition The reason that data (e.g., for constructing an image) was acquired again. Reason for Repeating Acquisition The acquired data is unsatisfactory because the patient moved. Patient motion The acquired data is unsatisfactory because the contrast timing was not adequate. Suboptimal contrast timing The protocol is appropriate for the indications recorded in the protocol instance. The American Academy of Orthopaedic Surgeons (AAOS) defines an appropriate procedure as one for which the expected health benefits exceed the expected health risks by a wide margin. Appropriate for the indications The protocol is consistent with the regulatory product labeling of the device recorded in the protocol instance. Consistent with labeling of the device The protocol is approved for use at the institution recorded in the protocol instance. Approved for use at the institution The protocol is approved for use in the clinical trial recorded in the protocol instance. Approved for use in the clinical trial The protocol is specifically approved for use on pregnant patients. Approved for use on pregnant patients The protocol is appropriate for execution on the device recorded in the protocol instance (which may identify an individual device by serial number or may identify a family of devices). I.e. the protocol has incorporated model-specific parameters and optimizations as necessary. Appropriate for the device The protocol specifies parameters that are within the operational limits of the device recorded in the protocol instance. I.e. execution of the protocol is not expected to damage or exceed the operational limits of the device. Inside operational limits of the device The protocol is optimized for the characteristics of the specific instance of the device recorded in the protocol instance. I.e. the protocol has incorporated model-specific parameters and optimizations as necessary. Optimized for the device instance The protocol is explicitly disapproved, or approval of the protocol has been withdrawn. Disapproved for any use The protocol is no longer to be used. E.g. it has been replaced by another protocol. Deprecated protocol The protocol is approved for use in experimental procedures. Approved for experimental use The protocol is disapproved for use in experimental procedures. Disapproved for experimental use The protocol is understood to be eligible for reimbursement by a given payer. Eligible for reimbursement The protocol is understood to be eligible for reimbursement on a per patient basis by a given payer. Eligible for reimbursement on per patient basis The protocol is understood to be ineligible for reimbursement by a given payer. Ineligible for reimbursement The protocol is explicitly disapproved for use on pregnant patients. Disapproved for use on pregnant patients The protocol is inappropriate for execution on the device recorded in the protocol instance (which may identify an individual device by serial number or may identify a family of devices). Inappropriate for the device The protocol specifies parameters that are not within the operational limits of the device recorded in the protocol instance. I.e. execution of the protocol may damage or exceed the operational limits of the device. Outside operational limits of the device The protocol is not optimized for the characteristics of the specific instance of the device recorded in the protocol instance. Not optimized for the device instance The protocol is inappropriate for the indications recorded in the protocol instance. The American Academy of Orthopaedic Surgeons (AAOS) defines an appropriate procedure as one for which the expected health benefits exceed the expected health risks by a wide margin. Inappropriate for the indications The protocol is inconsistent with the regulatory product labeling of the device recorded in the protocol instance. Inconsistent with labeling of the device The protocol is disapproved for use at the institution recorded in the approval instance. Disapproved for use at the institution The protocol is disapproved for use in the clinical trial recorded in the protocol instance. Disapproved for use in the clinical trial The senior ranking radiologist in the organization Head of Radiology The chair of a committee tasked with reviewing and approving protocols in the organization. Chair of Protocol Committee The administrative head of a department that provides radiology services. Administrator of Radiology Department The senior ranking radiologic technologist in the organization. Lead Radiologic Technologist The senior ranking cardiologist in the organization. Head of Cardiology A representative of a committee tasked with reviewing and approving protocols in the organization. Representative of Protocol Committee A representative of a committee tasked with evaluating medical ethics. E.g. Institutional Review Board. Representative of Ethics Committee A medical professional capable of developing a radiotherapy plan from a Physicians prescription and assisting in radiation machine calibration and other radiotherapy quality assurance work under supervision of a Medical Physicist. Physics Assistant A volume of gel that changes physical characteristics when exposed to ionizing radiation. 3D Gel A number of semiconductor devices that generates current when exposed to ionizing radiation. The devices are arranged systematically in a regular pattern. Diode Array A number of devices that measures charge from the ions produced in a medium when exposed to ionizing radiation. The devices are arranged systematically in a regular pattern. Ion Chamber Array A semiconductor device that generates current when exposed to ionizing radiation. Diode An ion chamber that uses a liquid as the medium. Liquid Ion Chamber Optically Stimulated Luminescent Dosimeter. It is a crystal that when exposed to green light, emits blue light in proportion to the amount of ionizing radiation it has been exposed to. OSLD A device that measures charge from the ions produced in a medium when exposed to ionizing radiation. Ion Chamber A semiconductor detector that uses diamond as the medium. Diamond Detector A radiophotoluminescence glass dosimeter. It is a solid state cumulative radiation dosimeter usually made of silver-activated phosphate glass. The silver atoms act as radiophotoluminescence centers excited by ionizing radiation. The number of centers excited is proportional to the absorbed dose to the RPLGD. RPLGD Instances that have been selected for export to a teaching file. For Teaching File Export Instances that have been selected for export for a clinical trial. For Clinical Trial Export The title of a document containing additional teaching file information. Additional Teaching File Information Instances that have been selected for export to a research collection. For Research Collection Export Instances that have been selected for export for publication. For Publication Export Delay export until final report is available. Delay export until final report is available Delay export until clinical information is available. Delay export until clinical information is available Delay export until confirmation of diagnosis is available. Delay export until confirmation of diagnosis is available Delay export until histopathology is available. Delay export until histopathology is available Delay export until other laboratory results are available. Delay export until other laboratory results are available Delay export until patient is discharged. Delay export until patient is discharged Delay export until patient dies. Delay export until patient dies Delay export until expert review is available. Delay export until expert review is available The category that describes the subject matter of a teaching file. A selection from the American Board of Radiology (ABR) subject headings. Teaching File Category The level of difficult that the material represents. Advanced. Level of Difficulty The teaching material is of a primary level of difficulty. Primary level The teaching material is of an intermediate level of difficulty. Intermediate level The teaching material is of an advanced level of difficulty. Advanced level The subject matter pertains to musculoskeletal imaging. Musculoskeletal imaging subject matter The subject matter pertains to pulmonary imaging. Pulmonary imaging subject matter The subject matter pertains to cardiovascular imaging. Cardiovascular imaging subject matter The subject matter pertains to gastrointestinal imaging. Gastrointestinal imaging subject matter The subject matter pertains to genitourinary imaging. Genitourinary imaging subject matter The subject matter pertains to neuroimaging . Neuroimaging subject matter The subject matter pertains to vascular and interventional imaging. Vascular and interventional imaging subject matter The subject matter pertains to nuclear medicine imaging. Nuclear medicine imaging subject matter The subject matter pertains to ultrasound imaging. Ultrasound imaging subject matter The subject matter pertains to pediatric imaging. Pediatric imaging subject matter The subject matter pertains to breast imaging. Breast imaging subject matter The entire Human Readable Form of the Unique Device Identifier as defined by the Issuing Agency. See . UDI An offset in time from a particular event of significance. In the context of a clinical trial, this is often the time since enrollment, or the baseline imaging study. Longitudinal Temporal Offset from Event The type of event to which a temporal offset is relative. Longitudinal Temporal Event Type A well-known landmark of the equipment that is visible by the operator. Equipment Landmark An equipment landmark on the X-Ray Table head located on the table top plane, centered in the left-right direction of the table. Center of Table Head The X coordinate of the Equipment Landmark in the Table Coordinate System. Equipment Landmark X Position The Z coordinate of the Equipment Landmark in the Table Coordinate System. Equipment Landmark Z Position A patient fiducial used to establish the patient location relative to equipment. Patient Location Fiducial The distance in the Z direction from the Equipment Landmark to the Patient Location Fiducial in the Table Coordinate System. Positive when the direction from the Equipment Landmark to the Patient Location Fiducial lies in the positive Z direction. Equipment Landmark to Patient Fiducial Z Distance Angle in the XY plane of the isocenter reference system between the Y axis and a plane containing the Z axis and the X-Ray center beam (deg). Corresponds to Positioner Isocenter Primary Angle (0018,9463).See . Positioner Isocenter Primary Angle Angle, in the plane containing the Z axis of the isocenter reference system and the X-Ray center beam, between the XY plane and the X-Ray center beam (deg). Corresponds to Positioner Isocenter Secondary Angle (0018,9464).See . Positioner Isocenter Secondary Angle Rotation of the X-Ray detector plane (deg). Corresponds to Positioner Isocenter Detector Rotation Angle (0018,9465).See . Positioner Isocenter Detector Rotation Angle Position of the X-Ray center beam in the isocenter reference system in the X direction (deg) at the end of an irradiation event. See (128757, DCM, "Positioner Isocenter Primary Angle"). Positioner Isocenter Primary End Angle Position of the X-Ray center beam in the isocenter reference system in the Z direction (deg) at the end of an irradiation event. See (128758, DCM, "Positioner Isocenter Secondary Angle"). Positioner Isocenter Secondary End Angle Rotation of the X-Ray detector plane (deg) at the end of an irradiation event. See (128759, DCM, "Positioner Isocenter Detector Rotation Angle"). Positioner Isocenter Detector Rotation End Angle Angle of the head-feet axis of the table (deg) relative to the horizontal plane at the end of an irradiation event. See (113754, DCM, "Table Head Tilt Angle"). Table Head Tilt End Angle Rotation of the table in the horizontal plane (deg) at the end of an irradiation event. See (113755, DCM, "Table Horizontal Rotation Angle"). Table Horizontal Rotation End Angle Angle of the left-right axis of the table (deg) relative to the horizontal plane at the end of an irradiation event. See (113756, DCM, "Table Cradle Tilt Angle"). Table Cradle Tilt End Angle X position of the Table Reference Point with respect to the Isocenter (mm). See . Table X Position to Isocenter Y position of the Table Reference Point with respect to the Isocenter (mm). See . Table Y Position to Isocenter Z position of the Table Reference Point with respect to the Isocenter (mm). See . Table Z Position to Isocenter X position of the Table Reference Point with respect to the Isocenter (mm) at the end of an irradiation event. See (128766, DCM, "Table X Position to Isocenter"). Table X End Position to Isocenter Y position of the Table Reference Point with respect to the Isocenter (mm) at the end of an irradiation event. See (128767, DCM, "Table Y Position to Isocenter"). Table Y End Position to Isocenter Z position of the Table Reference Point with respect to the Isocenter (mm) at the end of an irradiation event. See (128768, DCM, "Table Z Position to Isocenter"). Table Z End Position to Isocenter The anatomical feature or point of reference on which the reference location is based. Reference Basis Characterizes the geometry of the reference location (e.g., a plane or point). Reference Geometry Login name (user ID) of human observer who created the observations. Person Observer's Login Name An alphanumeric designator of an individual within a role. Identifier within Person Observer's Role The tabulation of gray level run lengths in a particular direction in an image. Abbreviated GLRLM.See . Gray Level Run Length Matrix A tabulation of counts of the number of groups of connected voxels with a specific discretized gray level value and size. Abbreviated GLSZM.See . Gray Level Size Zone Matrix A tabulation of counts of the number of groups (or zones) of linked voxels that share a specific discretised grey level value and possess the same distance to ROI edge. Abbreviated GLDZM.See . Gray Level Distance Zone Matrix A matrix containing the sum of grey level differences of pixels/voxels with a discretised grey level and average discretised grey level of neighbouring pixels/voxels within a specified Chebyshev distance. Abbreviated NGTDM.See . Neighbourhood Grey Tone Difference Matrix A tabulation of the counts of dependent (within a specified coarseness parameter) neighbouring discretised grey levels within a specified Chebyshev distance. Abbreviated NGLDM.See . Neighbouring Grey Level Dependence Matrix true Retired - Replaced by (GYBY, IBSI, "Joint Maximum of GLCM"). The probability corresponding to the most common gray level co-occurrence in the GLCM. Abbreviated MAX.See Fcm.joint.max in . Joint Maximum of GLCM true Retired - Replaced by (60VM, IBSI, "Joint Average of GLCM"). The gray level weighted sum of joint probabilities of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.joint.avg in . Joint Average of GLCM true Retired - Replaced by (UR99, IBSI, "Joint Variance of GLCM"). The sum of squares of the difference from the joint average of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.joint.var in . Joint Variance of GLCM true Retired - Replaced by (TF7R, IBSI, "Difference Average of GLCM"). The average for the diagonal probabilities of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.diff.avg in . Difference Average of GLCM true Retired - Replaced by (D3YU, IBSI, "Difference Variance of GLCM"). The variance for the diagonal probabilities of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.diff.var in . Difference Variance of GLCM true Retired - Replaced by (NTRS, IBSI, "Difference Entropy of GLCM"). The entropy for the diagonal probabilities of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.diff.entr in . Difference Entropy of GLCM true Retired - Replaced by (ZGXS, IBSI, "Sum Average of GLCM"). The average for the cross-diagonal probabilities of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.sum.avg in . Sum Average of GLCM true Retired - Replaced by (OEEB, IBSI, "Sum Variance of GLCM"). The variance for the cross-diagonal probabilities of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.sum.var in . Sum Variance of GLCM true Retired - Replaced by (P6QZ, IBSI, "Sum Entropy of GLCM"). The entropy for the cross-diagonal probabilities of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.sum.entr in . Sum Entropy of GLCM The inverse difference of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.inv.diff in . Sometimes referred to as "homogeneity" but that term is historically used to refer to the "inverse difference moment", which is calculated from the square of differences rather than absolute value of them.Retired.Replaced by (IB1Z, IBSI, "Inverse Difference of GLCM"). Inverse Difference of GLCM The normalized inverse difference of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.inv.diff.norm in . The US not UK spelling of "normalized" is used to be consistent with the DICOM convention, rather than the IBSI spelling.Retired.Replaced by (NDRX, IBSI, "Normalized Inverse Difference of GLCM"). Inverse Difference Normalized of GLCM The normalized inverse difference moment of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.inv.diff.mom.norm in . The US not UK spelling of "normalized" is used to be consistent with the DICOM convention, rather than the IBSI spelling.Retired.Replaced by (1QCO, IBSI, "Normalized Inverse Difference Moment of GLCM"). Inverse Difference Moment Normalized of GLCM true Retired - Replaced by (E8JP, IBSI, "Inverse Variance of GLCM"). The inverse variance of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.inv.var in . Inverse Variance of GLCM true Retired - Replaced by (QWB0, IBSI, "Autocorrelation of GLCM"). The autocorrelation of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.auto.corr in . Autocorrelation of GLCM true Retired - Replaced by (DG8W, IBSI, "Cluster Tendency of GLCM"). The cluster tendency of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.clust.tend in . Cluster Tendency of GLCM true Retired - Replaced by (7NFM, IBSI, "Cluster Shade of GLCM"). The cluster shade of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.clust.shade in . Cluster Shade of GLCM true Retired - Replaced by (AE86, IBSI, "Cluster Prominence of GLCM"). The cluster prominence of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.clust.prom in . Cluster Prominence of GLCM true Retired - Replaced by (R8DG, IBSI, "First Measure of Information Correlation of GLCM"). The first measure of information correlation of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.info.corr.1 in . First Measure of Information Correlation of GLCM true Retired - Replaced by (JN9H, IBSI, "Second Measure of Information Correlation of GLCM"). The second measure of information correlation of a Gray Level Co-occurrence Matrix (GLCM).See Fcm.info.corr.2 in . Second Measure of Information Correlation of GLCM true Retired - Replaced by (22OV, IBSI, "Short Runs Emphasis"). A measure of the distribution of short runs in a gray level run length matrix. Abbreviated SRE.See Frlm.sre in . Short Runs Emphasis true Retired - Replaced by (W4KF, IBSI, "Long Runs Emphasis"). A measure of the distribution of long runs in a gray level run length matrix. Abbreviated LRE.See Frlm.lre in . Long Runs Emphasis true Retired - Replaced by (IBSI, IBSI, "Low Gray Level Run Emphasis"). A measure of the distribution of low gray level values in a gray level run length matrix. Abbreviated LGRE.See Frlm.lgre in . Low Gray Level Run Emphasis true Retired - Replaced by (G3QZ, IBSI, "High Gray Level Run Emphasis"). A measure of the distribution of high gray level values in a gray level run length matrix. Abbreviated HGRE.See Frlm.hgre in . High Gray Level Run Emphasis true Retired - Replaced by (HTZT, IBSI, "Short Run Low Gray Level Emphasis"). A measure of the joint distribution of short runs and low gray level values in a gray level run length matrix. Abbreviated SRLGE.See Frlm.srlge in . Short Run Low Gray Level Emphasis true Retired - Replaced by (GD3A, IBSI, "Short Run High Gray Level Emphasis"). A measure of the joint distribution of short runs and high gray level values in a gray level run length matrix. Abbreviated SRHGE.See Frlm.srhge in . Short Run High Gray Level Emphasis true Retired - Replaced by (IVPO, IBSI, "Long Run Low Gray Level Emphasis"). A measure of the joint distribution of long runs and low gray level values in a gray level run length matrix. Abbreviated LRLGE.See Frlm.lrlge in . Long Run Low Gray Level Emphasis true Retired - Replaced by (3KUM, IBSI, "Long Run High Gray Level Emphasis"). A measure of the the joint distribution of long runs and high gray level values in a gray level run length matrix. Abbreviated LRHGE.See Frlm.lrhge in . Long Run High Gray Level Emphasis true Retired - Replaced by (R5YN, IBSI, "Gray Level Nonuniformity in Runs"). A measure of the similarity of gray level values throughout the image in a gray level run length matrix. Abbreviated RLM.GLNU.See Frlm.glnu in . Gray Level Nonuniformity in Runs A normalized measure of the similarity of gray level values throughout the image in a gray level run length matrix.See Frlm.glnu.norm in . The US not UK spelling of "normalized" is used to be consistent with the DICOM convention, rather than the IBSI spelling.Retired.Replaced by (OVBL, IBSI, "Normalized Gray Level Nonuniformity in Runs"). Gray Level Nonuniformity in Runs Normalized true Retired - Replaced by (W92Y, IBSI, "Run Length Nonuniformity"). A measure of the the similarity of the length of runs throughout the image in a gray level run length matrix. Abbreviated RLNU.See Frlm.rlnu in . Run Length Nonuniformity A normalized measure of the the similarity of the length of runs throughout the image in a gray level run length matrix.See Frlm.rlnu.norm in . The US not UK spelling of "normalized" is used to be consistent with the DICOM convention, rather than the IBSI spelling.Retired.Replaced by (IC23, IBSI, "Normalized Run Length Nonuniformity"). Run Length Nonuniformity Normalized true Retired - Replaced by (9ZK5, IBSI, "Run Percentage"). A measure of the homogeneity and distribution of runs of an image in a specific direction in a gray level run length matrix. Abbreviated RPC.See Frlm.r.perc in . Run Percentage true Retired - Replaced by (8CE5, IBSI, "Gray Level Variance in Runs"). The variance in runs for the gray levels in a gray level run length matrix.See Frlm.gl.var in . Gray Level Variance in Runs true Retired - Replaced by (SXLW, IBSI, "Run Length Variance"). The variance in runs for run lengths in a gray level run length matrix.See Frlm.rl.var in . Run Length Variance true Retired - Replaced by (HJ9O, IBSI, "Run Entropy"). The entropy of runs in a gray level run length matrix.See Frlm.rl.entr in . Run Entropy true Retired - Replaced by (5QRC, IBSI, "Small Zone Emphasis"). A feature that emphasizes small zones from a gray level size zone matrix. Abbreviated SZE.See Fszm.sze in . Small Zone Emphasis true Retired - Replaced by (48P8, IBSI, "Large Zone Emphasis"). A feature that emphasizes large zones from a gray level size zone matrix. Abbreviated LZE.See Fszm.lze in . Large Zone Emphasis true Retired - Replaced by (XMSY, IBSI, "Low Gray Level Zone Emphasis"). A feature that emphasizes low gray level zones from a gray level size zone matrix. Abbreviated LGZE.See Fszm.lgze in . Low Gray Level Zone Emphasis true Retired - Replaced by (5GN9, IBSI, "High Gray Level Zone Emphasis"). A feature that emphasizes high gray level zones from a gray level size zone matrix. Abbreviated LGZE.See Fszm.hgze in . High Gray Level Zone Emphasis true Retired - Replaced by (5RAI, IBSI, "Small Zone Low Gray Level Emphasis"). A feature that emphasizes small zone sizes and low gray levels from a gray level size zone matrix. Abbreviated SZLGE.See Fszm.szlge in . Small Zone Low Gray Level Emphasis true Retired - Replaced by (HW1V, IBSI, "Small Zone High Gray Level Emphasis"). A feature that emphasizes small zone sizes and high gray levels from a gray level size zone matrix. Abbreviated SZHGE.See Fszm.szhge in . Small Zone High Gray Level Emphasis true Retired - Replaced by (YH51, IBSI, "Large Zone Low Gray Level Emphasis"). A feature that emphasizes large zone sizes and low gray levels from a gray level size zone matrix. Abbreviated LZLGE.See Fszm.lzlge in . Large Zone Low Gray Level Emphasis true Retired - Replaced by (J17V, IBSI, "Large Zone High Gray Level Emphasis"). A feature that emphasizes large zone sizes and high gray levels from a gray level size zone matrix. Abbreviated LZHGE.See Fszm.lzhge in . Large Zone High Gray Level Emphasis true Retired - Replaced by (JNSA, IBSI, "Gray Level Nonuniformity of Size Zone Counts"). The distribution of zone counts over the gray values in a gray level size zone matrix. Abbreviated SZM.GLNU.See Fszm.glnu in . Gray Level Nonuniformity of Zone Counts The normalized distribution of zone counts over the gray values in a gray level size zone matrix.See Fszm.glnu.norm in . The US not UK spelling of "normalized" is used to be consistent with the DICOM convention, rather than the IBSI spelling.Retired.Replaced by (Y1RO, IBSI, "Normalized Gray Level Nonuniformity of Size Zone Counts"). Gray Level Nonuniformity of Zone Counts Normalized true Retired - Replaced by (4JP3, IBSI, "Zone Size Nonuniformity"). The distribution of zone counts over the different zone sizes in a gray level size zone matrix. Abbreviated ZSNU.See Fszm.zsnu in . Zone Size Nonuniformity The normalized distribution of zone counts over the different zone sizes in a gray level size zone matrix.See Fszm.zsnu.norm in . The US not UK spelling of "normalized" is used to be consistent with the DICOM convention, rather than the IBSI spelling.Retired.Replaced by (VB3A, IBSI, "Normalized Zone Size Nonuniformity"). Zone Size Nonuniformity Normalized true Retired - Replaced by (P30P, IBSI, "Size Zone Percentage"). The fraction of the number of realised zones relative to the maximum number of potential zones in a gray level size zone matrix. Abbreviated ZPERC.See Fszm.z.perc in . Zone Percentage true Retired - Replaced by (BYLV, IBSI, "Gray Level Variance in Size Zones"). The variance ithe variance in zone counts for the gray levels in a gray level size zone matrix.See Fszm.gl.var in . Gray Level Variance in Zones true Retired - Replaced by (3NSA, IBSI, "Zone Size Variance"). The variance in zone counts for the different zone sizes in a gray level size zone matrix.See Fszm.zs.var in . Zone Size Variance true Retired - Replaced by (GU8N, IBSI, "Zone Size Entropy"). The entropy of zone sizes in a gray level size zone matrix.See Fszm.zs.entr in . Zone Size Entropy Person who looks at and interprets medical images against defined criteria for the purpose of establishing eligibility of the subject of said images to be enrolled in a research experiment or a clinical trial. Eligibility Reader Person who designates locations on medical images (such as the location of lesions) for other persons or devices to measure or interpret. For the purpose of consistent target lesion selection for application of therapeutic response criteria by multiple independent readers. Designator Person who reviews medical images to evaluate the compliance of said images with quality criteria. Image Quality Controller Person who reviews results derived from medical images to evaluate the compliance of said results with quality criteria. Results Quality Controller A reference to a predecessor model that has been edited to produce the current model.For example: inclusion of more organs, completion of a partial segmentation, insertion of a bisection plane to allow interior inspection, or addition of support material. Edited Model A reference to a predecessor model that contributed to the creation of the current combined model.This includes simple assembly of discrete pieces as well as more complex combination. For example: by Boolean mathematical and similar operations. Component Model Intended for educational purposes.For example: patient or care-giver education/informed consent, or training residents and fellows. Educational Intent Intended to be used to assist with procedure planning Planning Intent Intended to be used to manufacture a patient-matched tool that is employed during a medical procedure.For example: drill/cutting guides, immobilizers, radiation shields, and plate bending templates. Tool Fabrication Intended to be used to manufacture a fully external prosthetic/orthotic Prosthetic Fabrication Intended to be used to manufacture a wholly or partially internal implant Implant Fabrication Intended to be used for simulation and/or practice of a surgery or other medical procedure. "Simulation" is not used for patient-matched simulation, as this would be covered by "Diagnostic Intent" or "Planning Intent". Simulation Intent A 3D manufacturing model derived from ultrasound imaging. US 3D CAM model A 3D manufacturing model derived from images from multiple different modalities. Mixed Modality 3D CAM model A 3D manufacturing model derived from measurements made from photographs. Photogrammetric Imaging 3D CAM model A 3D manufacturing model derived from laser scanning measurements. Laser Scanning 3D CAM model The fraction of fat present, derived using Dixon or other techniques. Fat fraction Water/Fat In Phase signal, derived using Dixon or other techniques. Water/fat in phase Water/Fat Out of phase signal, derived using Dixon or other techniques. Water/fat out of phase The fraction of water present, derived using Dixon or other techniques. Water fraction Analysis of perfusion images. Perfusion image analysis Analysis of diffusion images. Diffusion image analysis Estimation of the course of fiber tracts by analysis of anisotropic diffusion. Diffusion tractography Images that have been used in the treatment planning process. Image used for Treatment Planning Images that have been used for dose calculation in the treatment planning process. Image used for Dose Calculation Images that have been acquired during a treatment session. Image Acquired during Treatment Images that are used in a treatment session as reference images to position the patient. Image used as Reference Image for Treatment Registrations that have been used in the treatment planning process Registration used in Planning Registrations that have been created in the execution of a treatment session. Registration created during Treatment Dose volume from prior treatment(s). Dose from prior Treatment A coil-shaped marker visible in an image. Coil Marker A cylinder-shaped marker visible in an image. Cylinder Marker A thread or rod-shaped marker visible in an image. Wire Marker A marker that receives a radio signal and transmits a response. Transponder Marker A marker containing a substance that produces a distinctive signal on MR images. MR Marker Infrared reflecting external marker, e.g., attached to skin or stereotactic frame. Infrared Reflector Marker Visible light reflecting external marker, e.g., attached to skin or stereotactic frame. Visible Reflector Marker The average atomic number for a compound or mixture of materials. There are a variety of methods for estimating this value for a given compound. Effective Atomic Number Modified pixel values within the Hounsfield Unit Value range. Modified Hounsfield Unit Each real-world value mapped pixel represents a certain value for a specified material (the exact interpretation of the value range has to be defined by the user). Value-based Image Each real-world value mapped pixel value represents a property the attenuation of a material such as attenuation, concentration or density. Material Specific Image Image with the attenuation contribution of one or more materials removed. For pixels that did not contain any of the removed material(s), the pixel values are unchanged. Material Removed Image Image where pixel values have been modified to highlight a certain target material by partially suppressing the background and/or by enhancing the modified material. Material Highlighted Image Image where pixel values have been modified to partially suppress the modified material (opposite to Material Highlighted image). Material Suppressed Image Image where pixels are recalculated by a vendor-specific method. Material Recalculated Image Each real-world value mapped pixel represents a fraction, by volume, occupied by the material. Volume Occupancy Image Each real-world value mapped pixel represents a fraction, by mass, occupied by the material. Mass Occupancy Image An objective to achieve a radiation dose which is greater than or equal to the specified radiation dose at the surface of a volume. Minimum Surface Radiation Dose An objective to achieve a radiation dose which is less than or equal to the specified radiation dose at the surface of a volume. Maximum Surface Radiation Dose An objective to achieve a radiation dose which is greater than or equal to the specified radiation dose throughout a volume. Minimum Radiation Dose An objective to achieve a radiation dose which is less than or equal to the specified radiation dose throughout a volume. Maximum Radiation Dose An objective to achieve a mean radiation dose over the volume which is greater than or equal to the specified radiation dose. Minimum Mean Radiation Dose An objective to achieve a mean radiation dose over the volume which is less than or equal to the specified radiation dose. Maximum Mean Radiation Dose An objective to achieve an equivalent uniform dose (EUD) which is greater than or equal to the specified radiation dose. Minimum Equivalent Uniform Dose An objective to achieve an equivalent uniform dose (EUD) which is less than or equal to the specified radiation dose. Maximum Equivalent Uniform Dose An objective to achieve a radiation dose which is equal to the specified radiation dose throughout the volume. Prescription Radiation Dose An objective to achieve a conformity index which is greater than or equal to the specified conformity index for a radiation dose which is equal to the specified radiation dose throughout the volume.Minimum Conformity Index as defined in , page 335. Minimum Conformity Index An objective to achieve a healthy tissue conformity index which is greater than or equal to the specified healthy tissue conformity index for a radiation dose which is equal to the specified radiation dose throughout the volume.Minimum Healthy Tissue Conformity Index as defined in , page 335. Minimum Healthy Tissue Conformity Index An objective to achieve a conformation number which is greater than or equal to the specified conformation number greater for a radiation dose which is equal to the specified radiation dose throughout the volume.Minimum Conformation Number as defined in , page 335. Minimum Conformation Number An objective to achieve a homogeneity index which is less than or equal to the specified homogenity index for a radiation dose which is equal to the specified radiation dose throughout the volume.Maximum Homogeneity Index as defined in , page 335. Maximum Homogeneity Index An objective to achieve a radiation dose which is greater than or equal to the specified radiation dose for at least a specified volume percentage. Minimum Percent Volume at Radiation Dose An objective to achieve a radiation dose which is less than or equal to the specified radiation dose for at least a specified "volume percentage. Maximum Percent Volume at Radiation Dose An objective to achieve a radiation dose which is greater than or equal to the specified radiation dose for at least a specified volume size. Minimum Absolute Volume at Radiation Dose An objective to achieve a radiation dose which is less than or equal to the specified radiation dose for at least a specified volume size. Maximum Absolute Volume at Radiation Dose An objective to minimize the total Meterset. Minimize Meterset The radiation dose value for a Dosimetric Objective. Specified Radiation Dose The specified volume size of an anatomical region in a Dosimetric Objective. Specified Volume Size The percentage which represents a fractional parameter used by a Dosimetric Objective. Specified Volume Percentage Free text note describing characteristics of the radiation. Radiation Characteristics Note Free text note describing the devices and techniques used to shape the radiation beam. Beam Shaping Note Free text note to describe suggestions or advice to treatment planning. Treatment Planning Note Free text note describing additional activities that address individual patient needs. Special Procedure Note Free text note describing the process to position the patient for the procedure. Patient Positioning Note Free text note describing management of patient motion during the radiation treatment. 4D Radiation Treatment Note Free text note describing the setup of the patient on the patient support device(s). Patient Setup Note Free text note describing previously delivered treatments. Previous Treatment Note Free text note describing the intended use of images for planning. Planning Imaging Note Free text note describing how delivery is to be verified. Delivery Verification Note Free text note describing preferred simulation procedures. Simulation Note Particle used for Radiotherapy treatment. Radiation Therapy Particle Energy of the Radiotherapy treatment beam. RT Beam Energy Free text note describing the procedure "for acquiring and applying information about patient position. Patient Positioning Procedure Note Free text note describing the Quality Assurance Process for the treatment of the patient. QA Process Note Particle for a radiotherapeutic treatment using beams of energetic protons, positive ions or other particles. Ion Therapy Particle Isotope for a radiotherapeutic treatment where a decaying radiation source is placed inside or next to a target area, called Brachytherapy. Brachytherapy Isotope Free text note describing how adaptive radiotherapy is to be performed. Adaptive Radiation Therapy Note Isotope for a radiotherapeutic treatment where a decaying radiation source is placed outside the body. Teletherapy Isotope Volume containing tissues to be irradiated to a specified radiation dose, typically encompassing a tumor, and possibly including surrounding subclinical disease, and margin(s) to account for uncertainties in patient positioning and organ motion. RT Target Non-target structure or volume used when calculating the radiation dose, e.g., during an optimzation process. This may be a structure whose proximity to the target and/or radiosensitivity restrict the radiation dose deliverable to the target. RT Dose Calculation Structure Points or volumes used as spatial references, e.g., treatment or imaging device isocenter or fiducial markers. RT Geometric Information Device used to reproducibly position or limit the motion of a patient or portion of a patient during treatment. Fixation or Positioning Device Device used to deliver Brachtherapy treatments. This includes both devices containing radioactive sources (seeds, eye plaques) and devices used to position radioactive sources (source applicators, channels etc.). Brachytherapy Device A volume that does not represent a named physical entity. Non-specific Volume A volume representing the external shape of the patient body used in radiotherapeutic procedures. External Body Model A volume that does not correspond to an identifiable physical entity and has user specified boundaries. Unclassified Volume Clinical Target Volume encompassing diseased lymph node(s) , with margin to include surrounding sub-clinical disease as defined in . CTV Nodal Clinical Target Volume encompassing primary tumor(s) , with margin to include surrounding sub-clinical disease as defined in . CTV Primary Gross Tumor Volume encompassing diseased lymph nodes as defined in . GTV Nodal Gross Tumor Volume encompassing primary tumor(s) as defined in . GTV Primary Planning Target Volume encompassing a nodal CTV, with margin to account for uncertainty in patient positioning and organ motion as defined in . PTV Nodal Planning Target Volume encompassing a primary CTV, with margin to account for uncertainty in patient positioning and organ motion as defined in . PTV Primary Entire Body as a target volume for radiotherapy treatment. The usual term for a treatment technique irradiating this target is Full Body Irradiation. Entire Body Target Volume Internal Target Volume encompassing the CTV, with margin to account for internal motion, often delineated using multiple images, e.g., acquired over a breathing cycle, cardiac cycle, etc, as defined in . ITV Volume encompassing the Organ At Risk (Planning organ at Risk Volume (PRV)) with margin to account for uncertainty in patient positioning and organ motion as defined in . Planning Organ At Risk Volume Volume to which delivered radiation dose should be minimized or limited as defined in . Avoidance Volume Volume enclosed by an isodose surface appropriate to achieve the purpose of treatment (e.g., tumor eradication or palliation) as defined in . Treated Volume Normal tissue that receives undesired radiation and may be damaged by the radiation treatment as defined in . The treatment is typically planned to limit the radiation dose to such an organ. Organ At Risk A volume used to express dosimetric constraints for shaping the radiation dose distribution. Radiation Dose Shaping Volume A volume surrounding the target to achive a high radiation dose gradient using a low radiation dose constraint. Conformality Shell A point for which a specific radiation dose value is chosen. The rest of the radiation dose distribution is normalized against" this value. Radiation Dose Normalization Point A point at which the radiation dose is observed. Radiation Dose Reference Point Volume for which radiation dose is calculated. Dose Calculation Bounding Volume Volume in which the interaction of radiation with matter is taken into account. Radiation Interaction Volume The external boundary of patient tissue without additional devices. Patient Anatomy Model The external boundary of patient tissue plus devices that may be attached or adjacent to the body (such as Bolus, Patient Support Devices, Patient Immobilization Devices). Extended Patient Anatomy Model Point at which the patient is initially positioned prior to any other positioning procedure. Patient Setup Point A reference point used for patient setup based on room lasers. Room Laser Patient Setup Point A reference point used for patient setup based on movable lasers. Moveable Laser Patient Setup Point A reference point at which patient position verification references are acquired. Reference Acquisition Point A point representing the machine isocenter. Isocentric Treatment Location Point The Conformity Index for a Dosimetric Objective as defined in , page 335. Specified Conformity Index The Healthy Tissue Conformity Index for a Dosimetric Objective as defined in , page 335. Specified Healthy Tissue Conformity Index The Conformation Number for a Dosimetric Objective as defined in , page 335. Specified Conformation Number The Homogeneity Index for a Dosimetric Objective as defined in , page 335. Specified Homogeneity Index Source applicator used in brachytherapy treatment delivery Brachytherapy Source Applicator Channel shield device used in brachytherapy treatment delivery Brachytherapy Channel Shield Channel device used in brachytherapy treatment delivery Brachytherapy Channel A logical combination of two or more volumes for which the combination is not classified. Unclassified Combination Ratio of the mass density of a material relative to the mass density of water. Relative Mass Density Ratio of the electron density of a material relative to the electron density of water. Relative Electron Density The average atomic number of a material. Effective Z Ratio of effective atomic number to mass (AMU -1) for a material. Effective Z per A Ratio of the linear stopping power of a material to the linear stopping power of water. Relative Linear Stopping Power An energy value which qualifies a quantity or parameter whose value is defined in respect to this energy. Reference Energy Linear Cell Kill Factor (α) as defined in J. Deacon et al (Rad. Onc 2(4) : 317-323, 1984), page 318- Linear Cell Kill Factor Quadratic Cell Kill Factor (β) as defined in J. Deacon et al (Rad. Onc 2(4) : 317-323, 1984), page 318. Quadratic Cell Kill Factor High Dose Fraction Linear Cell Kill Factor (γ) as defined in Frederick W. McKenna et (J. Med. Phys, 36(2) : 100-106, 2011), page 102. High Dose Fraction Linear Cell Kill Factor Half-time for Tissue Repair as defined in R Singh R, et al. (Medical Dosimetry 28(4) : 225-259, 2003), page 256. Half-time for Tissue Repair High Dose Fraction Transition Dose as defined in Astrahan, M. (Med. Phys., 35(9) : 4161-4172, 2008), page 4164. High Dose Fraction Transition Dose The atomic number of an element, i.e. the number of protons found in the nucleus of an atom. Atomic Number The fractional weight of the element in a compound. Elemental Composition Atomic Mass Fraction Tissue-specific parameter that describes the volume effect of radiation dose delivered to a volume.See AAPM Report 166 (http://www.aapm.org/pubs/reports/RPT_166.pdf) for additional information. alpha gEUD Value A treatment consisting of a single treatment fraction, e.g., for stereotactic treatments. Single Fraction A treatment consisting of a one treatment fraction per day, typically 1.8-2.0 Gy per treatment fraction. Standard Fractionation A treatment consisting of a reduced number of treatment fractions relative to a standard fractionation, typically with a higher radiation dose per fraction. Hypo-fractionation A treatment consisting of an increased number of fractions relative to a standard fractionation, typically two per day with smaller radiation dose per fraction. Hyper-fractionation A treatment consisting of a continuous delivery using a temporary implant. Continuous Temporary A treatment consisting of a continuous delivery using a permanent implant. Continuous Permanent A treatment technique in which the field shape and the source position do not change during delivery. Static Beam A treatment technique in which the field shape does not change during delivery while the source position follows an arc. Arc Beam A treatment technique in which the field shape changes during delivery while the source position follows an arc. Conformal Arc Beam A treatment technique in which the field shape does not change during an exposure. Several field shapes may be used in different exposures at the same source position. Step and Shoot Beam A treatment technique in which the field shape continously changes during an exposure at the same source position. Sliding Window Beam A treatment technique in which the field shape, gantry speed and radiation dose rate changes during delivery while the source position follows an arc.Volumetric Modulated Arc Therapy (VMAT). VMAT A treatment technique in which the field shape continously changes during delivery while the source position follows a continous arc in parallel to a simultaneous patient support movement. Helical Beam A treatment technique in which the field shape and the source position do not change during" delivery while the patient support is moving. Topographic Beam A device attached to the tabletop that is also screwed into the skull of the patient's head to position and orient the head in a prescribed geometry relative to the tabletop. The device is commonly known as a "halo". Headframe A device that is placed over the patient's face and attached to the tabletop to prevent the patient from moving relative to the tabletop. Head Mask A device that is placed over the patient's face and neck and attached to the tabletop to prevent the patient from moving relative to the tabletop. Head and Neck Mask A device that is modified by pressure (molded) to fit another object (such as the patient"s anatomy) and then used to control the reproducibility of the patient"s treatment position. Mold A device that is fabricated from a mold of another object (like the patient"s anatomy) and then used to control the reproducibility of the patient"s treatment position. Cast A device placed on the tabletop to support the chest and arms of a patient in a prescribed position and orientation. Breast Board A device placed beneath a patient to support the whole body in a prescribed position and orientation relative to the table top. Body Frame A device placed beneath a patient to support a body part in a prescribed position and orientation relative to the table top. It is commonly a bag containing low density polystyrene spheres that becomes semi-hard when vacuum is applied conforming to the bottom surface of the patient. Vacuum Mold A device placed beneath a patient to support the whole body in a prescribed position and orientation relative to the table top. It is commonly shaped like a hollow half cylinder. The space between the patient and the wall is commonly filled with a dual component foam that hardens conforming to the bottom surface of the patient. Whole Body Pod A flexible fluid container inserted into the rectum to maintain an immovable geometry during treatment. Rectal Balloon An intracavity cylinder inserted into the vagina to achieve greater radiation dose control and radiation dose shaping. Radioactive sources are inserted into the cylinder for treatment. Vaginal Cylinder A device, typically made of a low temperature alloy, such as Lipowitz"s metal, that provides an opening in a beam block with constant attenuation across an area of the beam to prevent or reduce radiation dose delivery to normal tissues. Aperture Block A device placed into a machine slot or an applicator to which accessories are attached. Accessory Tray A device placed into a radiotherapy machine slot which provide slot to add other devices and/or to limit the beam. Radiotherapy Applicator A category of methods for the calculation of effective dose that are based on radiation transport and are used to predict the Relative Biological Effectiveness of an ion beam based on the quality of the radiation used.[Wambersie A, RBE, reference RBE and clinical RBE: Applications of these concepts in hadron therapy, Strahlentherapie und Onkologie 1999 June, 175(2) : 39-43][Paganetti H, et al., Relative biological effectiveness (RBE) values for proton beam therapy, Int J Rad. Onc Biol Phys, 2002 June; 53(2) : 407-421] Radiation transport-based methods A category of methods for the calculation of effective dose that are based on Fractionation or temporal patterns and are used to predict the Biologically Effective Dose.[Thames HD, Hendry JH. Fractionation in radiotherapy. New York: Taylor & Francis; 1987][Barendsen, G.W (1982) Dose fractionation, dose rate and iso-effect relationships for normal tissue responses, Int. J. Radiat. Oncol. Biol. Phys. 8 (11) : 1981-1997.] Fractionation-based or temporally-based methods The Local Effect Model (LEM) method used to predict the Relative Biological Effectiveness of dose delivered using ion beams.[Grun, R. Friedrich, T. Elasasser, T. Kramer, M. Zink, K. Karger, C. P. Durante, M. Engenhard-Cabillic, R. Scholz, M. (2012) "Impact of enhancements in the local effect model (LEM) on the predicted RBE-weighted target dose distribution in carbon ion therapy" Physics in Medicine and Biology 57: 7261 - 7274.] Local Effect Model The Microdosimetric Kinetic Model (MKM) " used to predict the Relative Biological Effectiveness of dose delivered using ion beams.[Inaniwa, T. Furukawa, T. Kase, Y. Matsufuji, N. Toshito, T. Matsumoto, Y. Furusawa, Y. Node, K. (2010) "Treatment planning for a scanned carbon beam with a modified microdosimetric kinetic model" Physics in Medicine and Biology 55: 6721 - 6737.] Microdosimetric Kinetic Model The linear quadratic model usedto compute the equivalent Biologically Effective Dose (BED) delivered in 2 Gray dose fractions.[Fowler JF. The linear-quadratic formula and progress in fractionated radiotherapy. Br J Radiol. 1989 Aug; 62 (740) : 679-94.] Equivalent 2-Gray Fractions Model The linear quadratic model usedto compute the equivalent Biologically Effective Dose (BED) delivered at an infinitely low dose-rate.[Fowler JF, Br J Radiol. 1989; 62: 679-694] Linear-Quadratic Model The modified linear quadratic model with time factor method usedto compute the equivalent Biologically Effective Dose (BED) delivered at an infinitely low dose-rate, taking into account tumor repopulation during treatment.[Fowler JF, Semin. Radiat. Oncol. 1992; 2(1) : 16-21] Linear-Quadratic Model with Time Factor The linear-quadratic-linear dose-response model usedto compute the equivalent Biologically Effective Dose (BED) delivered at an infinitely low dose-rate, taking into account linear cell survival with high dose fractions.[Astrahan M, Med.Phys. 2008; 35: 4161-4172] Linear-Quadratic-Linear Model The linear-quadratic dose-response model modified for low-dose rate brachytherapy used to compute the equivalent Biologically Effective Dose (BED) delivered at an infinitely low dose-rate.[Sing R, Al-Hallaq H, Med.Dosim. 2003; 28(4) : 225-259] Linear-Quadratic Model for Low-Dose Rate Brachytherapy A Radiotherapy prescription prescribed prior to the current prescription. Historical RT Prescription Image Instances available as input for prescribing a Radiotherapy treatment prescription. RT Prescription Input Images Image Instances available as input for planning a Radiotherapy treatment plan. RT Treatment Planning Input Images A treatment technique using multiple decaying radiation sources at fixed spatial locations. Multiple Fixed Sources A treatment technique using a robotic delivery device with real-time motion tracking and compensation. Synchronized Robotic Treatment A treatment technique using a robotic delivery device without real-time motion tracking and compensation. Non-Synchronized Robotic Treatment Ionized helium atom with 2 protons and 1 neutron. ^3^Helium nucleus Ionized helium atom with 2 protons and 2 neutrons. ^4^Helium nucleus Ionized carbon atom with 6 protons and 6 neutrons. ^12^Carbon nucleus Ionized oxygen atom with 8 protons and 8 neutrons. ^16^Oxygen nucleus The injector device detected a pressure above the warning threshold, generated a warning and did not automatically terminate the administration. Pressure above warning limit The injector device detected a pressure above the adjustment limit, took compensating action and did not automatically terminate the administration. Pressure above adjustment limit The injector device detected a flow rate above the warning threshold, generated a warning and did not automatically terminate the administration. Flow rate above warning limit The injector device detected a flow rate above the adjustment limit, took compensating action and did not automatically terminate the administration. Flow rate above adjustment limit The injector device terminated the administration due to detection of an abort request by the operator. Terminated due to request from operator The device detected that a pause duration has been reached and the device resumed automatically. Fixed duration pause ended The injector device detected a pressure above the termination limit and automatically terminated the administration. Terminated due to pressure above termination limit The injector device detected a flow rate above the termination limit and automatically terminated the administration. Terminated due to flow rate above termination limit The Injector device detected that a pause duration has exceeded limit and the injector device terminated the administration. Terminated due to excessive duration pause The injector device detected a communication loss and automaticallyterminated the administration. Terminated due to injector communication loss The injector device detected an unspecified failure and automaticallyterminated the administration. Terminated due to unspecified injector failure The injector device started saline flow for the purpose of keeping vein open. Keep vein open started The injector device ended saline flow for the purpose of keeping vein open. Keep vein open ended The injector device detected that a syringe was attached to the injector. Syringe attached The injector device detected that a syringe was detached from the injector. Syringe detached Total volume of flush delivered by the keep vein open function of the injector. Total Keep Vein Open Volume Administered An administration phase where fluid is being delivered by an injector system according to the programmed instructions. Automatic Programmed Administration Phase An administration phase where fluid delivery is stopped by the injector system until a programmed time elapses. Automatic Programmed Delay Phase true Retired An administration phase where the fluid is delivered automatically by an injector system and stopped under manual control by the operator. Automatic with Manual Hold Phase An administration phase where the fluid is delivered by the injector system under manual control by the operator. Cardiac Cath. Automated Manual Inject Phase Information only available if injection was triggered manually. Manually Triggered Injection Information An administration mode where the fluid is delivered by a mechanical injector system. Automated Administration An administration mode where the substance is delivered manually Clinician manual injection of an Imaging Agent or oral consumption by a patient. Manual Administration The injector device detected air in the tubing or syringe before or during the Imaging Agent administration and did not automatically terminate the administration. Air detected The injector device detected air in the tubing or syringe and terminated the administration. Terminated due to air detected The injector device received instruction from scanner to terminate the administration and terminated the administration. Terminated by scanner The injector device detected critical battery level and terminated the administration. Terminated due to critical battery level The injector device detected removal of a consumable from the injector device and terminated the administration. Terminated due to consumable removal A code that specifies how the Imaging Agent is administered to the patient. Administration Mode A report of the planned patient-specific Imaging Agent administration steps. Planned Imaging Agent Administration Procedure Report Description of a specific Imaging Agent that was planned or was administered. Imaging Agent Information Number of osmoles of solute per kilogram of solvent at 37°C. Osmolality at 37C Number of osmoles of solute per liter (L) at 37°C. Osmolarity at 37C A measure of a resistance of a fluid to gradual deformation by stress, measured at 37°C. Viscosity at 37C Indicates if an Imaging Agent was warmed prior to the administration procedure. Imaging Agent Warmed The degree to which a paramagnetic contrast agent can enhance the proton transverse relaxation rate constant (R2, 1/T2), normalized to the concentration of the contrast agent.Also referred to as r2. Typically expressed in units l/mmol/s. Contrast Transverse Relaxivity Indicates whether the Imaging Agent is Ionic or non-ionic. Is Ionic Indicates normalized dose of Imaging Agent per kg of patient weight. Typically recommended by the vendor.For e.g,. grams Iodine per Kg (gI / Kg). Dosing Factor Information about use of Imaging Agent component(s). Imaging Agent Component Usage Information about list of administration steps for administering Imaging Agent. Imaging Agent Administration Steps A limit set at the power injector device indicating the maximum allowed pressure planned for administering the Imaging Agent. Pressure Limit Time after the start of injection of a delivered Imaging Agent administration. Time after the start of injection An individual administration step in the Imaging Agent administration plan. Imaging Agent Administration Step Identifies a step in an Imaging Agent administration plan. Imaging Agent Administration Step Identifier Time difference between the nominal start of the administration step and the actual start of Imaging Agent administration. Imaging Agent Administration Delay Time delay for start of image acquisition after start of Imaging Agent administration. Scan Delay Description of Imaging Agent administration plan. Imaging Agent Administration Steps Description Protocol name for Imaging Agent administration. Imaging Agent Administration Protocol Name Information about a delivery phase of an Imaging Agent administration step. Imaging Agent Administration Phase Identifies a phase in an Imaging Agent administration step. Imaging Agent Administration Phase Identifier Type of phase in an Imaging Agent administration step. Imaging Agent Administration Phase Type The volume of the Imaging Agent in an Imaging Agent container before administration. Initial Volume of Imaging Agent in Container The volume of the Imaging Agent remaining in the Imaging Agent container after administration. Residual Volume of Imaging Agent in Container Time for the injector to build up from zero to the set pressure. Rise Time Flow rate at the start of an administration of the Imaging Agent. Starting Flow Rate of administration Flow rate at the end of an administration of the Imaging Agent. Ending Flow Rate of administration A vendor-specific code indicating the shape of the flow rate curve within an administration phase. Bolus Shaping Curve The status of the Imaging Agent administration procedure at completion as reported by the automated injector or by the administering person. Imaging Agent Administration Completion Status Information about adverse events occurring during administration of an Imaging Agent. Imaging Agent Administration Adverse Events The estimated volume lost at the injection site.The estimation includes extravasation, paravenous administration and leakage at the injection site. Estimated Extravasation Volume Date and Time when an adverse event was noticed by the observer. Adverse Event Detection DateTime The unique identifier of the Imaging Agent administration step being referenced. Referenced Imaging Agent Administration Step UID The identifier of an Imaging Agent administration phase being referenced. Referenced Imaging Agent Administration Phase Identifier An injector device that can be configured to execute a series of phases automatically. Programmable Injector Device Number of injector heads or pumps (single, dual or many) in an injector device. Number of Injector Heads Whether the agent administration was discontinued. Administration discontinued The volume of Imaging Agent in one unit of presentation. The capacity of the unit of presentation may be larger than this. Imaging Agent Volume per Unit of Presentation Information about the Imaging Agent accessory or consumable used for performing the Imaging Agent administration. Imaging Agent Administration Consumable Type of consumable used for performing the Imaging Agent administration. Imaging Agent Administration Consumable Type If the consumable is installed newly during the preparation process for this Imaging Agent Administration. Consumable is New Information about the Imaging Agent administration steps that is patient-specific. Planned Imaging Agent Administration Information about the Imaging Agent administration steps that were delivered to a patient. Performed Imaging Agent Administration The maximum volume of contrast agent allowed to be administered.This is typically specified by the prescribing health care professional for patient safety and quality purposes. Contrast Volume Limit Graph depicting the measurement of flow rate of fluid against time. Flow Rate vs Time Graph depicting the measurement of pressure of fluid against time. Pressure vs Time The alphanumeric string from reading a barcode. Barcode Value Information about two-dimensional graph data for a syringe or pump. Imaging Agent Administration Graph Information about events that occurred at an injector during an Imaging Agent administration. Imaging Agent Administration Injector Events Type of event that occurred at an injector during an Imaging Agent administration. Imaging Agent Administration Injector Event Type Date and time when an injector event was detected. Injector Event Detection DateTime Reference to a Planned Imaging Agent Administration SOP instance. Planned Imaging Agent Administration SOP Instance Information about the activity in an Imaging Agent administration phase. In an Automated Injection system this describes the activity of one of the pump or syringe units used. Imaging Agent Administration Activity Information about a component of an Imaging Agent. Imaging Agent Component Volume of one agent component in a mixture of multiple components. Component Volume Total volume administered by all syringes/pump actions during a single phase. Total Phase Volume Administered Total volume administered by all syringes/pump actions within all phases during a single Step. Total Step Volume Administered Total number of times that an injection was triggered manually. Total number of manually triggered injections Peak flow rate value detected at a specific location (syringe or pump) during a specific activity of an administration phase. Peak Flow Rate in Phase Activity Peak pressure value detected at a location (syringe or pump) during a single administration phase activity. Peak Pressure in Phase Activity Unique identification of a single performed Imaging Agent administration step actually delivered on a specific occasion Imaging Agent Administration Performed Step UID An injection of an inactive agent to test for blockages or leakages in the delivery path, usually performed prior to an administration of an imaging or therapeutic agent. Patency Test Injection An injection of a bolus of Imaging Agent to determine the appropriate delay time for a diagnostic administration. Transit Time Test Injection Administration of an Imaging Agent for the purpose of enhancing contrast in an image. Diagnostic Administration Type of step in an Imaging Agent administration. For example, a test administration or a diagnostic administration. Administration Step Type Injection of an inactive fluid to clear the administration path of an active agent. Flush Administration A curve that decays exponentially from a specified start value, at a specified decay rate. Negative exponential A curve that changes linearly from a specified start value to a specified end value.Note: The start value and the end value may be the same, indicating a flat curve. Linear Curve Identifies an Imaging Agent uniquely within a set of Imaging Agents. The Imaging Agent may be a single component or a mix of multiple components. Imaging Agent Identifier The identifier of an Imaging Agent being referenced. Referenced Imaging Agent Identifier Type of catheter used for Imaging Agent administration. Consumable Catheter Type A pharmaceutical agent administered as a pre-medication to prevent contrast reactions. Contrast Reaction Prophylactic Agent Unique identification of a single Imaging Agent administration performed phase. Imaging Agent Administration Performed Phase UID The unique identifier of the Imaging Agent administration performed phase being referenced Referenced Imaging Agent Administration Phase UID A non time-determined administration phase that is not automatically terminated, where fluid delivery is stopped until manually resumed. Automatic Programmed Wait Phase The Imaging Agent Administration Injector Phase Identifier used for presenting this Phase to the User Interface of the injector. Not necessarily the same as the Imaging Agent Administration Phase Identifier of the IAASR Plan. Imaging Agent Administration Injector Phase Identifier Indicator for marking this phase as a Automated Administration Phase, which has undergone a manual hold during execution. Imaging Agent Administration Phase with Manual Hold A programmed administration phase initiated an injector hold/wait state. Programmed hold started A manual intervention of the technologist initiated an injector hold/wait state. Manual hold started A manual intervention of the technologist has resumed injector fluid administration. It does not matter if the hold/wait state was initiated programmed or manually. Manual resume from hold The injector terminated injection processing from hold/wait after exceeding a time limit. Terminated hold due to timeout Towards the mid-sagittal plane of the body. Median Structure of skin of paraspinal area of the neck. Skin of paraspinal area of the neck Structure of skin of paraspinal area of the superior back. Skin of paraspinal area of the superior back Structure of skin of upper paraspinal region. Skin of upper paraspinal region Structure of skin of mid paraspinal region. Skin of mid paraspinal region Structure of skin of lower paraspinal region. Skin of lower paraspinal region Structure of skin of anterior helix of ear. Skin of anterior helix of ear Structure of skin of caruncle of eye. Skin of caruncle of eye Structure of skin of inferior helix of ear. Skin of inferior helix of ear Structure of skin of inferior posterior surface of the pinna. Skin of inferior posterior surface of the pinna Structure of skin of lateral part of dorsum of foot. Skin of lateral part of dorsum of foot Structure of skin of lower antihelix of ear. Skin of lower antihelix of ear Structure of skin of lower eyelid margin. Skin of lower eyelid margin Structure of skin of infraalar groove. Skin of infraalar groove Structure of skin of medial part of dorsum of foot. Skin of medial part of dorsum of foot Structure of skin of paranasal cheek. Skin of paranasal cheek Structure of skin of posterior helix of ear. Skin of posterior helix of ear Structure of skin of posterior lobule of the ear. Skin of posterior lobule of the ear Structure of skin of sole of forefoot. Skin of sole of forefoot Structure of skin of superior antihelix of ear. Skin of superior antihelix of ear Structure of skin of superior posterior helix of ear. Skin of superior posterior helix of ear Structure of skin of superior posterior surface of the pinna. Skin of superior posterior surface of the pinna Structure of skin of upper antihelix of ear. Skin of upper antihelix of ear Structure of skin of upper eyelid margin. Skin of upper eyelid margin Structure of skin of mid back. Skin of mid back A functional condition present during acquisition, such as phonation, weight bearing, voiding of the bladder or hemodynamic physiological challenges. Functional condition present during acquisition A functional condition present during acquisition that is related to the jaw, such as the position of the lips, mouth, or mandible. Orthognathic Functional Condition RT beam limiting device jaw pair Jaw Pair RT beam limiting device multi-element leaf pairs Leaf Pairs A circular, aperture size adjustable beam limiting device for an RT treatment device. Variable Circular Collimator RT beam limiting device multi-element unpaired leaves Single Leaves Oriented in the X direction of a defined coordinate system. X Orientation Oriented in the Y direction of a defined coordinate system. Y Orientation Physical RT external beam compensator to compensate for inhomogeneity. Physical Compensator RT Treatment irradiating the body of the Patient in part or in whole. Total Body Irradiation RT Treatment irradiating the surface of the skin of the Patient in part or in whole. Total Skin Irradiation A type of device (or cone) for electron treatments that attaches to the applicator carriage of an RT treatment device for the purpose of holding an aperture and a bolus close to the patient's skin. Several beam applicators may be available to reduce the weight of apertures lifted by therapists, decrease the aperture/bolus-to-skin distance, and reduce leakage radiation. Electron Fixed Aperture A type of device (or cone) for photon treatments that is attached to the radiation head of an RT treatment device into which beam modifiers are installed. Photon Fixed Aperture A type of device which is used to delimit the radiation of an RT treatment device in case of an intraoperative radiotherapeutic treatment. Intraoperative Fixed Aperture A physical device placed inside the radiation head used to modify the fluence distribution across the field. Hard Wedge A physical device manually placed between the radiation head and the patient used to modify the fluence distribution across the field. It is motorized and can be inserted/extracted from the beam path. Motorized Wedge An effective wedge generated by the movement of a jaw across the treatment field while delivering radiation. Dynamic Wedge Mechanical grid to embed scaling information in a radiographic image Graticule Mechanical crosshair to embed a crosshair representing axes and scaling information in a radiographic image Reticle An electronic radiographic imaging device Image Detector Mechanical device to hold imaging film Film Holder A spherical mechanical indicator used for alignment Winston-Lutz Pointer A bowtie-shaped filter used in imaging Bowtie Filter Beam that uses a filter to produce a nearly uniform intensity profile. Flattening Filter Beam Beam that does not use a filter to produce a nearly uniform intensity profile. Non-Flattening Filter Beam Beam that uses a filter to produce a nearly uniform region across part of the intensity profile. Partial Flattening Filter Beam The point location defined as the nominal source of radiation. Nominal Radiation Source Location The center point of the treatment machine through which all beam central axes pass under all gantry angles. Treatment Machine Isocenter A fixed point at which initial patient setup is performed based on lasers. Fixed Laser Setup Point A device delivering radiotherapy treatments. Radiotherapy Treatment Device Set of Robotic Nodes that can be used for targets associated with the patient's head. Head Node Set Set of Robotic Nodes that can be used for targets within the patient's body, excluding the head. Body Node Set Set of Robotic Nodes that can be used for targets near the patient's trigeminal nerve. Trigeminal Node Set Two Robotic Nodes for Quality Assurance, for example daily checks. QA Node Pair Single Robotic Node for Quality Assurance. QA Node DICOM objects communicated in time-synchronized flows using DICOM-RTV, intended for a simultaneous presentation. RTV Rendition Audio and Video DICOM objects communicated in time-synchronized flows using DICOM-RTV, intended for a simultaneous presentation. RTV Audio and Video Rendition Two Video DICOM objects communicated in time-synchronized flows using DICOM-RTV, intended for a stereo video. RTV Stereo Video Rendition Audio and two Video DICOM objects communicated in time-synchronized flows using DICOM-RTV, intended for a stereo video. RTV Audio and Stereo Video Rendition The purpose of defining a region. To define a bounding box, center or outline. Geometric purpose of region A visual explanation of how an algorithm produced its results. For a machine learning application, a class activation or saliency map. Visual explanation Values are derived using global average pooling in convolutional neural networks to produce a localization map highlighting the important regions in the image for predicting a class. The class activation map (CAM) indicates the discriminative image regions used by the network to identify a class. Zhou B, Khosla A, Lapedriza A, Oliva A, Torralba A. Learning Deep Features for Discriminative Localization. IEEE Conference on Computer Vision and Pattern Recognition (CVPR). 2016. p 2921–9. Class activation Values are derived using the gradients of a target class flowing into the final convolutional layer of a convolutional neural network to produce a localization map highlighting the important regions in the image for predicting a class. The gradient-weighted class activation map (Grad-CAM) indicates the discriminative image regions used by the network to identify a class. Selvaraju RR, Cogswell M, Das A, Vedantam R, Parikh D, Batra D. Grad-CAM: Visual Explanations from Deep Networks via Gradient-based Localization. 2016. Gradient-weighted class activation Values are derived using a single back-propagation pass through a network to produce a localization map highlighting the spatial support of a given class in a given image. Simonyan K, Vedaldi A, Zisserman A. Deep Inside Convolutional Networks: Visualising Image Classification Models and Saliency Maps. 2013. Saliency An object which is attached to the patient to attenuate the therapeutic dose (such as a Bolus or a lead shield). Patient-Attached Dose Control Object A leiomyosarcoma (sarcoma containing large spindle cells of smooth muscle) occuring at a site other than the uterus. Non-uterine leiomyosarcoma Body structures of bone and soft tissue. Bone and soft tissue A measure of weighted attenuation shifts within perivascular adipose tissue, computed as a weighted measure of attenuation in concentric layers of perivascular tissue around the arterial wall, capturing the respective perivascular attenuation gradients. Abbreviated "FAI".See Antoniades C, Kotanidis CP, Berman DS. State-of-the-art review article. Atherosclerosis affecting fat: What can we learn by imaging perivascular adipose tissue? Journal of Cardiovascular Computed Tomography. 2019 Mar 29;0(0). Available from: http://​www.journalofcardiovascularct.com/​article/​S1934-5925(18)30618-X/​abstract. Perivascular adipose tissue fat attenuation index A channel monitoring the patient’s position. Patient position A channel monitoring the patient’s rotation around the body’s longitudinal (head – feet) axis. Patient rotation longitudinal A channel monitoring the angle of elevation of the patient against horizontal. Patient elevation Begin of deepened or accelerated breathing. Hyperventilation begin End of deepened or accelerated breathing. Hyperventilation end Point in time after end of hyperventilation. Post-hyperventilation Airflow measured by a thermistor sensor. Airflow Thermistor Airflow measured by a thermocouple sensor. Airflow Thermocouple Airflow measurement by a nasal prong. Airflow Nasal Prong Airflow measurement by a nasal piezoelectric polyvinylidenefluoride sensor. Airflow PVDF Airflow measurement by a Continuous Positive Airway Pressure device. Airflow CPAP Airflow measured by an unspecified method or device. Airflow Pressure delivered by a positive airway pressure device like a CPAP or BiPAP machine. PAP Pressure Pressure of air leaking from a positive airway pressure device like a CPAP or BiPAP machine. PAP Leak Pressure Tidal volume during breathing when subject is using a positive airway pressure device like a CPAP or BiPAP machine. PAP Tidal Volume Pressure in the esophagus measured by esophageal manometry. Esophageal Pressure Respiratory pressure measured with an unspecified method or device. Respiratory Pressure Respiratory effort delivered by a respiratory inductance plethysmography (RIP) belt applied on the patient’s thorax. Thoracic Respiratory Inductance Respiratory effort delivered by a respiratory inductance plethysmography (RIP) belt applied on the patient’s abdomen. Abdominal Respiratory Inductance Respiratory effort delivered by a piezoelectric polyvinylidenefluoride sensor belt applied on the patient’s thorax. Thoracic Respiratory PVDF Respiratory effort delivered by a piezoelectric polyvinylidenefluoride sensor belt applied on the patient’s abdomen. Abdominal Respiratory PVDF Respiratory effort measured by an unspecified method or device on the patient’s thorax. Thoracic Respiratory Effort Respiratory effort measured by an unspecified method or device on the patients abdomen. Abdominal Respiratory Effort Respiratory effort measured by an unspecified method or device. Respiratory Effort Partial pressure of carbon dioxide in the respiratory gases measured transcutaneously. CO2 Transcutaneous Partial pressure of carbon dioxide measured in the end-tidal main-stream respiratory gases. CO2 Waveform End-tidal Main-stream Partial pressure of carbon dioxide measured in the end-tidal main-stream respiratory gases averaged over time. CO2 Trend End-tidal Main-stream Partial pressure of carbon dioxide measured in the end-tidal side-stream respiratory gases. CO2 Waveform End-tidal Side-stream Partial pressure of carbon dioxide measured in the end-tidal side-stream respiratory gases averaged over time. CO2 Trend End-tidal Side-stream Partial pressure of carbon dioxide measured in the main-stream respiratory gases. CO2 Waveform Main-stream Partial pressure of carbon dioxide measured in the side-stream respiratory gases. CO2 Waveform Side-stream Partial pressure of carbon dioxide measured in the main-stream respiratory gases averaged over time. CO2 Trend Main-stream Partial pressure of carbon dioxide measured in the side-stream respiratory gases averaged over time. CO2 Trend Side-stream Partial pressure of carbon dioxide in the respiratory gases measured using an unspecified method or device. CO2 Respiration Radiotherapy treatment delivery where treatment parameters are defined at the treatment device, rather than specified by a treatment plan. RT Treatment with Ad Hoc Planning The order in which Imaging Agent administration steps are planned to be performed. Imaging Agent Administration Step Sequence Number Decision was made by the operator of the equipment to discontinue treatment. Operator decision to terminate treatment Decision was made by the patient to discontinue treatment. Patient decision to terminate treatment Decision was made by the physician to discontinue treatment. Physician decision to terminate treatment Treatment delivery of this RT Radiation was terminated. Treatment Terminated An out-of-tolerance delivery parameter was accepted or re-specified and treatment delivery was continued. Interlock Overridden The patient was re-positioned and treatment delivery was continued. Patient Repositioned A bolus is confirmed to be present. Bolus Present A cone is confirmed to be present. Cone Present A block is confirmed to be present. Block Present An applicator is confirmed to be present. Applicator Present A headframe is confirmed to be present. Headframe Present The patient could not be positioned on the patient positioning device in a way, that the shape of treatment area has an unacceptable orientation to match the intended target area. Inappropriate Patient Orientation The patient could not be positioned on the patient positioning device in a way, that the that the shape of treatment area radiated the intended target area. Inappropriate Patient Position The machine intended to be used for treatment was not available. Machine Not Available The patient´s anatomy is found to be inconsistent with the patient model used during planning to the extent that treatment delivery was impacted. Change in Patient Anatomy A re-calibration of the treatment device impacted the treatment delivery. Machine Calibration Adjustment A planned Beam Modifier was not available at the time of treatment. Unavailability of a Beam Modifier A capability of the treatment device was not available because the corresponding license expired. Machine Capability License Expired Beam targeting parameters have been adjusted in a way that violated a clinical tolerance. Beam Targeting Tolerance Violation A Meterset value has been adjusted in a way that violated a clinical tolerance. Meterset Tolerance Violation A Delivery Rate has been adjusted in a way that violated a clinical tolerance. Delivery Rate Tolerance Violation Jaw positions exceeded the machine tolerance. Jaw Position Tolerance Violation One or more MLC leave positions exceeded the machine tolerance. MLC Position Tolerance Violation The Source Position angle exceeded the machine tolerance. Source Position Tolerance Violation The dose rate exceeded the machine tolerance. Dose Rate Tolerance Violation An interlock triggered by the primary fluence-monitoring system. Primary Fluence Monitoring System Interlock An interlock triggered by the secondary fluence-monitoring system (also known as Secondary Dose Monitoring System ). Secondary Fluence Monitoring System Interlock An interlock triggered by a controlling timer. Timer Interlock An interlock triggered by a door being open. Door Interlock An interlock triggered by patient movement. Patient Motion Interlock Information about non-melanoma skin cancers in blood relatives of the patient. Family history of non-melanoma skin cancer Information about in situ melanoma in blood relatives of the patient. Family history of melanoma in situ Information about non-melanoma skin cancers in the patient. History of non-melanoma skin cancer The number of malignant melanomas the patient has had diagnosed. Number of malignant melanomas The number of in situ melanomas the patient has had diagnosed. Number of melanomas in situ A skin lesion that is firm on palpation. Firm skin lesion A lesion that is raised from the skin surface on palpation. Raised skin lesion The number of direct relatives (i.e., parent, sibling, offspring) who have malignant melanoma. Number of first-degree relatives affected by malignant melanoma A continuous part of space, not necessarily associated with a particular image. Region in Space A reference to an identifier of a Region of Interest.For example, the value of ROI Number (3006,0022) within an Item of Structure Set ROI Sequence (3006,0020) in an Instance of RT Structure Set Storage SOP Class. Referenced Region of Interest Identifier A path along the long axis of an elongated finding or feature, which is equidistant from its surface, such as along the center of the lumen of a vessel. Centerline Mode of stimulation used when applying stimulation techniques during procedure. Stimulation Mode The sample number where the first stimulation event takes place. Sample position in waveform recordings starts at 1. Stimulus Sample Position The time offset where the stimulation starts, relative to the start time of the recorded waveform data. Stimulus Time Offset How many stimulation events took place. Number of Stimulus Events The frequency with which periodic stimulation occurs. Frequency of Stimulus Events Description of dosimetric-related values that can be summarized for the entire scope of accumulation. Accumulated Dose Data Description of dosimetric-related values that can be summarized for a single irradiation event. Irradiation Event Summary Data Description of the reference point definition and accumulated dose values at the reference point. Reference Point Dosimetry This acquisition of data (e.g., for constructing an image) was for some reason unsatisfactory. Is Rejected Acquisition The reason that data (e.g., for constructing an image) was rejected. Reason for Rejecting Acquisition Description of the radiation dose characteristics independent of an irradiation event. Irradiation Details The component that is used to define the origin of the RDSR RCS. RDSR Frame of Reference Origin The description of the RDSR reference coordinate system. It should include a description of where the origin is, as well as the orientation of the coordinate system. RDSR Frame of Reference Description Description of the radiation source characteristics Radiation Source Characteristics The thickness of the X-Ray filter X-Ray Filter Thickness Describes if a reported value is a mean, median, maximum, minimum, etc. Reported Value Type Description of radiation technique details Radiation Technique Description of a filter Filtration Description of attenuators Attenuators Description of the output measurement point dose accumulation timing and values. Radiation Output The air kerma (in mGy) accumulated at the output measurement point during a given period of time. Air Kerma at Output Measurement Point Description of the radiation field area and corresponding timing and source index. Radiation Field Area A list of three-dimensional coordinates that describe the perimeter of the radiation field. The points shall be coplanar and are limited to describing either polygons or ellipses. Radiation Field Outline Specifies when a value was determined within a period of time. Value Timing Description of the X-Ray source coordinate reference system and the transformation matrix that relates it to the RDSR reference coordinate system X-Ray Source Reference Coordinate System A transformation matrix that relates one coordinate system to another Transformation Matrix The point about which an object rotates Center of Rotation A point defining a vector relative to the center of rotation that defines a normal vector of the rotation plane Rotation Plane Normal Point The angle about the center of rotation for a rotating object Rotation Angle Description of component positions described in the X-Ray source reference coordinate system Beam Position The three-dimensional coordinate of the output measurement position. The output measurement position is described in the X-Ray source reference coordinate system. Output Measurement Point Position The three-dimensional coordinate of the reference point position. The reference point position is described in the X-Ray source reference coordinate system. The reference point may be at the same position as the output measurement point. Reference Point Position Textual identification for each attenuator described. The identifier is used to link the description of the attenuator to its position described in the beam position or attenuator position template. The identifier shall not change during the scope of accumulation described in 10040, and shall not be repeated. Identification of the Attenuator Description of positions and corresponding timing for attenuators Attenuator Position Description of various patient attenuation characteristics that may be known by the system and may change during the course of the scope of accumulation Patient Attenuation Characteristics Description of various procedure characteristics that may change during a study and may be useful to aid in dosimetry or quality assurance Procedure Characteristics Characteristics of an X-Ray attenuator used as either a filter or attenuating object in the X-Ray beam. Includes a description of actual or equivalent material, as well as thickness information. Attenuator Characteristics All the points in time throughout a defined period of time Duration of Time Period The point in time at the beginning of a defined period of time Beginning of Time Period The point in time at the end of a defined period of time End of Time Period The point in time at the middle of a defined period of time Middle of Time Period The origin of the Frame of Reference is defined as part of the room in which the equipment is located Room Origin The origin of the Frame of Reference is defined as part of the equipment Equipment Origin The origin of the Frame of Reference is defined as part of the patient support Patient Support Origin The origin of the Frame of Reference is defined as the isocenter of the imaging system Isocenter Origin The origin of the RDSR Frame of Reference is defined as the origin of the patient coordinate system in the images. Patient Coordinate System Origin A dosimetry phantom consisting of a 100 mm diameter polymethyl methacrylate (PMMA) cylinder. The phantom will be at least 140 mm in length. The phantom will be longer than the length of the sensitive volume of the radiation detector used for measurements. The phantom will have five holes just large enough to accept a radiation detector and will be parallel to the axis of symmetry: one hole at the center, and four holes with their centers 10 mm below the surface of the phantom at 90° intervals. For the holes not used during a measurement, properly fitting insert parts made of PMMA will be used. 100 mm Pediatric Head CT Dosimetry Phantom Nominal field strength of MR magnet. Magnetic field strength Indication of whether endorectal coil was used during MR examination. Endorectal coil used Type of the endorectal coil used during MR examination. Endorectal coil type Substance used to fill endorectal coil in order to suppress distortion artifacts during MR examination. Inflatable endorectal coil fill substance Orientation of the plane defining image acquisition. Cross-sectional scan plane orientation Time between acquisition of imaging samples corresponding to the same tissue location during dynamic contrast-enhanced examination. Dynamic contrast-enhanced temporal resolution Clinical history of the patient related to the genitourinary health. Genitourinary History Assessment of the imaging study related to its quality, as defined by the compliance with the technical acquisition requirements or as perceived by the reader. Imaging Study Quality Assessment of a specific imaging series related to its quality, as defined by the compliance with the technical acquisition requirements or as perceived by the reader. Imaging Series Quality Standard or guideline used to perform structured evaluation of imaging study. Reporting system Information relevant for evaluation of prostate MR imaging study. Prostate MRI relevant procedure information Findings identified in prostate images Prostate Imaging Findings Finding relating to the overall assessment of the prostate gland Overall Prostate Finding Finding relating to the localized entities within the prostate gland Localized Prostate Finding Measurements relating localized findings to the prostate gland Prostate relational measurements Distance between a finding and a neurovascular bundle Distance from neurovascular bundle Length of the portion of the lesion abutting the prostate capsule as observed in the image. Lesion capsular contact length Finding identified in prostate MRI that is located outside of the prostate gland. Extra-prostatic Finding Evaluation of a localized abnormality within the gland using Prostate Imaging Reporting and Data System (PI-RADS®) guidelines. PI-RADS Localized Abnormality Assessment Assessment of the lesions characteristics based on its appearance in T2-weighted MR images following the Prostate Imaging Reporting and Data System (PI-RADS®) guidelines. PI-RADS T2WI Lesion Assessment Assessment of the lesions characteristics based on its appearance in diffusion-weighted MR images following the Prostate Imaging Reporting and Data System (PI-RADS®) guidelines. PI-RADS DWI Lesion Assessment Assessment of the lesions characteristics based on its appearance in Dynamic Contrast-enhanced MR images following the Prostate Imaging Reporting and Data System (PI-RADS®) guidelines. PI-RADS DCE Lesion Assessment Prostate Imaging Reporting and Data System (PI-RADS®) version 2.0. . PI-RADS v2.0 Prostate Imaging Reporting and Data System (PI-RADS®) version 2.1 . PI-RADS v2.1 Image from a diffusion-weighted acquisition corresponding to the highest b-value. Diffusion-weighted Acquisition Highest b-value image Image acquisition that involves injection of a contrast agent into the bloodstream. Dynamic Contrast-Enhanced Acquisition Image obtained as a difference in image intensities between two phases of a dynamic contrast-enhanced acquisition. Dynamic Contrast-Enhanced Acquisition Subtraction image Area of focal dilatation that occurs within the prostatic utricle. Utricle cyst Imaging protocol was not followed. Protocol not followed Based on image appearance, the coil was not placed correctly. Coil placement concern Incorrect coil was selected during MR acquisition. Coil selection concern The imaging procedure performed did not correspond to what was requested. Study performed did not match request Study is missing data. Incomplete study Some patient preparation procedures were not performed sufficiently with respect to what was expected. Suboptimal patient preparation Coverage of the imaged anatomy is not complete. Anatomy coverage incomplete Choice of Field of View size or position is not fit for the purpose of the acquisition. Poor FOV selection Signal-to-noise characteristics are insufficient for the purpose of the acquisition. Poor SNR Timing of the contrast injection relative to the timing of the image acquisition was not properly selected. Poor contrast timing Contrast enhancement observed in the image is not sufficient for the purpose of the acquisition. Inadequate contrast enhancement The study lacks a sufficient set of subtraction images. Subtraction image missing Extra subtraction image sets are present that are incorrect or confusing. Unwanted subtraction images Diffusion-weighted MR image obtained with an expected b-value is not present. Expected b-value is missing Severe geometric distortions are present in the image, and are affecting the area of interest in the image. Severe distortion in the area of interest Apparent Diffusion parametric map image is missing, but was expected. Expected ADC map is missing Geometric distortions are present in the image, and are affecting the area of interest in the image. Distortion artifact in the area of interest There is no history of prostate cancer in the patient’s family. No family history of prostate cancer The purpose of imaging is to identify and localize targets suspicious of the presence of prostate cancer prior to biopsy. Pre-biopsy localization of prostate lesion Continual monitoring of a patient with localized prostate cancer, with a view to curative intent, according to locally agreed pathways. After [Kuru 2013] Active surveillance of prostate cancer The need to detect or measure the amount of change in the condition. Assess change Abnormality localized at a focus, central point or locus. Focal abnormality Abnormality not localized to a single focus. Non-focal abnormality Partially but not entirely surrounded (bounded) by a distinct tissue layer, such as a smooth low-signal line on MRI. Partially encapsulated Entirely surrounded (bounded) by a distinct tissue layer, such as a smooth low-signal line on MRI, in more than one spatial dimension (at least two imaging planes). Completely encapsulated Having higher signal intensity (more intense, brighter) than background tissue on the apparent diffusion coefficient map. ADC Hyperintense Having lower intensity (darker) than a reference background tissue on apparent diffusion coefficient map. ADC Hypointense Continued increase of signal intensity over time. Persistent delayed phase: Type 1 curve Signal intensity does not change over time after its initial rise, flat; plateau refers to signal that varies <10% from the peak signal over the duration of the DCE MRI. Plateau delayed phase: Type 2 curve Signal intensity decreases after its highest point after its initial rise. Washout delayed phase: Type 3 curve Focal, early enhancement corresponding to a focal peripheral zone of transition zone lesion on T2 and/or DWI MRI. Positive DCE Lack of early enhancement. Diffuse enhancement not corresponding to a focal lesion on T2 and/or DWI MRI. Focal enhancement corresponding to a BPH lesion. Negative DCE Contrast-enhanced is observed in the early stage following contrast injection Early Contrast Enhancement Contrast enhancement is non-focal and diffused over a region. Diffuse Contrast Enhancement Contrast enhancement is concentrated in a focal tissue area. Focal Contrast Enhancement Class of organofluorine compounds containing only carbon and fluorine. Perfluorocarbon Prostate MRI technical acquisition requirements defined in . ESUR 2012 prostate MRI acquisition requirements Prostate MRI technical acquisition requirements defined in PI-RADS® 2.0 . PI-RADS 2.0 prostate MRI acquisition requirements Prostate MRI technical acquisition requirements defined in PI-RADS® 2.1 . PI-RADS 2.1 prostate MRI acquisition requirements A high-speed ultrasound imaging technique that quantitatively assesses the stiffness/elasticity of tissue based on the tracking of the propagation of a shear-wave and measuring its velocity over a 2D area. 2D Shear Wave Elastography A high-speed ultrasound imaging technique that quantitatively assesses the stiffness/elasticity of tissue based on the tracking of the propagation of a shear-wave and measuring its velocity over a 3D volume. 3D Shear Wave Elastography The velocity at which a shear-wave propagates through a substance or tissue. The shear wave speed (SWS) is correlated with the elasticity of the substance or tissue. Shear Wave Speed The rate at which shear wave speed is attenuated with changes in the frequency of the shear wave. The dispersion slope is correlated with both the elasticity and the viscosity of the substance or tissue. Shear Wave Dispersion Slope Distance from the ultrasound probe surface to the geometric center of the ROI. ROI Depth The width of the center range within which 50% of the measured values in a reference population fall. The IQR may also be described as the first quartile value subtracted from the third quartile value, or equivalently the 25th percentile value subtracted from the 75th percentile value. Interquartile Range of population The interquartile range value of a population divided by the median value of the same population. IQR/M, which is one way to describe the variability of a set of measurements, is sometimes used as a metric of measurement quality. Interquartile Range to Median Ratio of population A high-speed ultrasound imaging technique that quantitatively assesses the stiffness/elasticity of tissue based on the tracking of the propagation of a shear-wave and measuring its velocity at a point. Point Shear Wave Elastography A segment of wall of the left ventricle at the apical level whose circumferential extent aligns with that of the anteroseptal segments at the mid and basal levels. Defined in . left ventricle apical anteroseptal segment A segment of wall of the left ventricle at the apical level whose circumferential extent aligns with that of the inferoseptal segments at the mid and basal levels. Defined in . left ventricle apical inferoseptal segment A segment of wall of the left ventricle at the apical level whose circumferential extent aligns with that of the inferolateral segments at the mid and basal levels. Defined in . left ventricle apical inferolateral segment A segment of wall of the left ventricle at the apical level whose circumferential extent aligns with that of the anterolateral segments at the mid and basal levels. Defined in . left ventricle apical anterolateral segment Method to position the patient such that the device isocenter is at a specific location in the patient. For a radiotherapeutic treatment, this allows rotational delivery of radiation treatment fields that maintain a focus on that location. Isocentric Setup Method Method to position the patient such that the distance between the radiation source and the patient skin is a specific value. Controlled SSD Setup Method Method to position the patient at an extended distance from the radiation source, typically 2-6 meters, to create a large treatment field for total body irradiation (TBI). TBI Setup Method Method to position the patient using high-accuracy localization imaging from multiple angles. Typically combined with rigorous fixation to reduce patient motion. Stereotactic Setup Method Method to position the patient using three-dimensional skin surface registration. Skin Apposition Setup Method Method to set up the patient for ocular treatments by focusing the patient’s gaze on a particular location. Ocular Gaze Setup Method Preparation procedure to set up devices to shield parts of the patient from radiation. Patient Shielding Procedure Preparation procedure to set up devices to fixate parts of the patient. Fixation involves both preventing motion of the patient part and putting the patient part into an intended configuration. Patient Fixation Procedure Preparation procedure to orient and position parts of the patient with respect to a physical reference. Patient Alignment Procedure Preparation procedure for controlling or compensating for motion of parts of the patient. Patient Motion Management Setup Procedure Device to protect anatomical structures within a body cavity. Cavity radiation shield A radiation shielding device that is not in contact with the patient or the treatment delivery device. Independent radiation shield An optical distance measuring device. Optical Distance Meter A mechanical distance measuring device. Mechanical Pointer Radiofrequency-based positioning beacon that responds to interrogation. Radiofrequency Transponder A device that reflects infrared light. Often used to position patients. Infrared Marker A device that emits radiation from a radioactive source. Often used to position patients. Radioactive Marker A device that produces a temperature map. Thermal Imager A device that projects a controlled pattern of light and captures data based on infrared and visible light measurements. Combined Structured Light/Thermal Imager A light to which the patient’s gaze is aligned. Ocular Fixation Light Device to help patients to follow certain instructions. Coaching Device Device to hold the attention of the patient. May be used to reduce the anxiety or discomfort of the patient during a procedure. Patient Distraction Device Procedure to minimize risk of collision between a primary device, the patient, and associated devices. Collision checks Device used to position the breast. Breast Bridge Belt used to limit abdominal motion by compressing the abdomen. Abdominal Compression Belt Arch-shaped device used to limit abdominal motion by maintaining pressure on the abdomen. Abdominal Compression Arch A board to which the patient’s head is fixed to prevent the patient from moving relative to the tabletop. Typically the patient’s head is fixed with a mask. Head Fixation Board A label designating a specific location on an patient support table top. Couch Index Label Positioning angle on a fixation device with a single degree of angular freedom. Fixation Device Angle The number indicating the position of the plate of an abdominal compression device. Abdominal Compression Plate Position Number Length of the part of the abdominal compression belt being used to compress the abdomen. Abdominal Compression Belt Length Pressure applied to the abdomen by the abdominal compression belt. Abdominal Compression Belt Pressure References to SOP Instances providing the basis for patient alignment. May contain the intended orientation. The basis for alignment is also referred to as the alignment reference. Referenced Patient Alignment Reference The RT Radiation has been already delivered in a previous Treatment Session. RT Radiation previously delivered It has been assessed that the delivery of the Treatment is unnecessary to meet the current treatment goals. Treatment unnecessary It has been assessed that the delivery of the Treatment would result in effects that exceed the physical or psychological tolerance of the patient. Treatment exceeds patient tolerance Fiducial defined or used during a radiotherapeutic procedure, e.g., treatment planning or positioning. Radiotherapy Fiducial Lagrangian strain parallel to the reference contour (i.e. in the longitudinal direction) calculated as: SL(t)=(L(t) -L0)/L0, where L(t) is the length at a given point t in time and L0 is the reference length at the reference time t0.Strain values are negative with shortening. Due to the common convention of using end-diastole as the t0 reference time, echocardiography strain values are typically negative. Natural strain differs from Lagrangian strain by using t-1 as the reference time for each time t rather than t0. JASE recommends using Lagrangian strain, noting Natural strain can be computed if needed.Definitions for a common standard for 2D speckle tracking echocardiography: consensus document of the EACVI/ASE/Industry Task Force to standardize deformation imaging, Eur Heart J Cardiovasc Imaging.2015 Jan;16(1):1-11 and JASE 2015 Feb;28(2):183-93. Longitudinal Lagrangian Strain Peak value of longitudinal Lagrangian strain during an identified interval, such as systole or a full cardiac cycle. Peak Longitudinal Lagrangian Strain The time from the beginning of the interval to the time of the peak longitudinal Lagrangian strain. Time to Peak Longitudinal Lagrangian Strain The standard deviation of the time to peak longitudinal strain value for different myocardial segments. Typically assessed over 18-segments of the left ventricle. Haugaa, K., et al, "Mechanical Dispersion Assessed by Myocardial Strain in Patients After Myocardial Infarction for Risk Prediction of Ventricular Arrhythmia" J Am Coll Cardiol Cardiovasc Imaging. 2010 Mar, 3 (3) 247–256. Mechanical Dispersion Rate of change of longitudinal strain over time. Longitudinal Lagrangian Strain Rate Lagrangian strain in the wall of a cavity perpendicular to the longitudinal strain and towards the center of the cavity. Radial Lagrangian Strain Rate of change of radial Lagrangian strain over time. Radial Lagrangian Strain Rate Lagrangian strain tangential to the reference contour, perpendicular to the longitudinal strain, with positive values in the counterclockwise direction when viewed from the apex. Circumferential Lagrangian Strain Rate of change of circumferential Lagrangian strain over time. Circumferential Lagrangian Strain Rate A method of analyzing the motion of tissue, such as the heart muscle or blood, by using naturally occurring speckle patterns in 2D ultrasound imaging. 2D Speckle Tracking A method of analyzing the motion of tissue, such as the heart muscle or blood, by using naturally occurring speckle patterns in 3D ultrasound imaging. 3D Speckle Tracking A view obtained from the apical four chamber view by angling the beam medially toward the patient’s right shoulder to better include the right ventricle. Recommended in "Standardization of left atrial, right ventricular, and right atrial deformation imaging using two dimensional speckle tracking echocardiography: a consensus document of the EACVI/ASE/Industry Task Force to standardize deformation imaging " European Heart Journal – Cardiovascular Imaging (2018) 19, 591–600. Apical four chamber RV Focused A view obtained from the apical four chamber view by angling the beam laterally toward the patient’s left shoulder to better include the right ventricle. Alternative to RV focused per "Recommendations for Cardiac Chamber Quantification by Echocardiography in Adults: An Update from the American Society of Echocardiography and the European Association of Cardiovascular Imaging" J Am Soc Echocardiogr 2015;28:1-39. Apical four chamber RV Modified A measurement method that uses a contour representing the estimated endocardial boundary. Endocardial Method A measurement method that uses a contour representing the estimated epicardial boundary. Epicardial Method A measurement method that uses a contour representing the estimated mid-layer of the myocardium (between the endocardium and epicardium). Myocardial Midlayer Method The longitudinal Lagrangian strain of the left ventricle calculated as the arithmetic mean of LV End-systolic Global Longitudinal Strain 4CH (Endocardial), LV End-systolic Global Longitudinal Strain 2CH (Endocardial), and LV End-systolic Global Longitudinal Strain ALAX (Endocardial). LV End-systolic GLS Multiview Mean (Endocardial) The longitudinal Lagrangian strain of the left ventricle measured along the entire myocardial length in 2D Speckle mode in the apical four chamber view at end systole using the endocardial method.The measurement may have been taken at any point in the respiration cycle.Sometimes abbreviated GLS4C. LV End-systolic GLS 4CH (Endocardial) The longitudinal Lagrangian strain of the left ventricle measured along the entire myocardial length in 2D Speckle mode in the apical two chamber view at end systole using the endocardial method.The measurement may have been taken at any point in the respiration cycle.Sometimes abbreviated GLS2C. LV End-systolic GLS 2CH (Endocardial) The longitudinal Lagrangian strain of the left ventricle measured along the entire myocardial length in 2D Speckle mode in the apical long axis view at end systole using the endocardial method.The measurement may have been taken at any point in the respiration cycle.Sometimes abbreviated GLSALAX. LV End-systolic GLS ALAX (Endocardial) The peak longitudinal Lagrangian strain of the left ventricle calculated as the arithmetic mean of LV Peak Systolic Global Longitudinal Strain 4CH (Endocardial), LV Peak Systolic Global Longitudinal Strain 2CH (Endocardial), and LV Peak Systolic Global Longitudinal Strain ALAX (Endocardial). LV Peak Systolic GLS Multiview Mean (Endocardial) The peak longitudinal Lagrangian strain of the left ventricle measured along the entire myocardial length in 2D Speckle mode in the apical four chamber view during systole using the endocardial method.The measurement may have been taken at any point in the respiration cycle. LV Peak Systolic GLS 4CH (Endocardial) The peak longitudinal Lagrangian strain of the left ventricle measured along the entire myocardial length in 2D Speckle mode in the apical two chamber view during systole using the endocardial method.The measurement may have been taken at any point in the respiration cycle. LV Peak Systolic GLS 2CH (Endocardial) The peak longitudinal Lagrangian strain of the left ventricle measured along the entire myocardial length in 2D Speckle mode in the apical long axis view during systole using the endocardial method.The measurement may have been taken at any point in the respiration cycle. LV Peak Systolic GLS ALAX (Endocardial) The peak longitudinal Lagrangian strain of the left ventricle calculated as the arithmetic mean of LV Peak Global Longitudinal Strain 4CH (Endocardial), LV Peak Global Longitudinal Strain 2CH (Endocardial), and LV Peak Global Longitudinal Strain ALAX (Endocardial). LV Peak GLS Multiview Mean (Endocardial) The peak longitudinal Lagrangian strain of the left ventricle measured along the entire myocardial length in 2D Speckle mode in the apical four chamber view over the cardiac cycle using the endocardial method.The measurement may have been taken at any point in the respiration cycle. LV Peak GLS 4CH (Endocardial) The peak longitudinal Lagrangian strain of the left ventricle measured along the entire myocardial length in 2D Speckle mode in the apical two chamber view over the cardiac cycle using the endocardial method.The measurement may have been taken at any point in the respiration cycle. LV Peak GLS 2CH (Endocardial) The peak longitudinal Lagrangian strain of the left ventricle measured along the entire myocardial length in 2D Speckle mode in the apical long axis view over the cardiac cycle using the endocardial method.The measurement may have been taken at any point in the respiration cycle. LV Peak GLS ALAX (Endocardial) The mechanical dispersion of the left ventricle in 2D Speckle mode at end systole.The measurement may have been taken using any view, using any segment model (16, 17 or 18-segment) and at any point in the respiration cycle. LV End-systolic Mechanical Dispersion The point in time in a cardiac cycle when the mitral valve nominally finishes closing. Mitral Valve Closure The point in time in a cardiac cycle when the mitral valve nominally begins opening. Mitral Valve Opening The point in time in a cardiac cycle when the aortic valve nominally finishes closing. Aortic Valve Closure The point in time in a cardiac cycle when the aortic valve nominally begins opening. Aortic Valve Opening EEG electrode placement on the head located inferior frontopolar, left. . Fp9 EEG electrode placement on the head located inferior frontopolar, right. . Fp10 EEG electrode placement on the head located inferior anterior frontal, left. . AF9 EEG electrode placement on the head located inferior anterior frontal, right. . AF10 EEG electrode placement on the head located inferior parietooccipital, left. . PO9 EEG electrode placement on the head located inferior parietooccipital, right. . PO10 EEG electrode placement on the head located inferior occipital, left. . O9 EEG electrode placement on the head located inferior occipital, right. . O10 Coronary Artery Disease Assessment Coronary Artery Disease Assessment Modifier Coronary Artery Disease Stenosis Assessment Modifier Degree of maximal coronary stenosis is 0%. CAD-RADS assessment category . 0 - Documented absence of CAD Degree of maximal coronary stenosis is 1-24%. CAD-RADS assessment category . 1 - Minimal non-obstructive CAD Degree of maximal coronary stenosis is 25-49%. CAD-RADS assessment category . 2 - Mild non-obstructive CAD Degree of maximal coronary stenosis is 50-69%. CAD-RADS assessment category . 3 - Moderate stenosis Degree of maximal coronary stenosis is 70-99%, or left main coronary stenosis is >50%, or coronary stenosis is >=70% in 3 vessels. CAD-RADS assessment category . 4 - Severe stenosis Degree of maximal coronary stenosis is 70-99% stenosis. CAD-RADS assessment sub-category . 4A - Severe stenosis Left main coronary stenosis is >50% or coronary stenosis is >=70% in 3 vessels. CAD-RADS assessment sub-category . 4B - Severe stenosis Degree of maximal coronary stenosis is 100% (total occlusion). CAD-RADS assessment category . 5 - Total coronary occlusion No more than mild coronary stenosis in interpretable segments, and one or more vessel segments non-diagnostic. CAD-RADS assessment category . N - Non-diagnostic study One or more vessel segments were non-diagnostic for coronary stenosis. CAD-RADS assessment category modifier . N - Non-diagnostic segments At least one coronary stent is present in the coronary system. CAD-RADS assessment category modifier . S - Stent At least one coronary artery bypass graft is present. CAD-RADS assessment category modifier . G - Graft Vulnerable plaque or high risk plaque features are present. CAD-RADS assessment category modifier . V - Vulnerable plaque Wrought titanium 15-molybdenum 5-zirconium 3-aluminium alloy. Titanium alloy (Titanium Molybdenum-15 Zirconium-5 Aluminium-3) Material identifiers used during or for an RT planning process. RT Segment Material An interlock triggered by reaching a predefined dose limit. Dose Limit Interlock An interlock triggered by the occurrence, or anticipation, of a physical collision caused by lack of separation distance between objects. Clearance Interlock An interlock triggered by the occurrence, or anticipation, of a physical collision caused by lack of separation distance between machine and machine. Machine Clearance Interlock An interlock triggered by the occurrence, or anticipation, of a physical collision caused by lack of separation distance between machine and patient. Patient Clearance Interlock An interlock triggered by the occurrence, or anticipation, of a physical collision caused by lack of separation distance between an accessory and the machine, patient or another accessory.An accessory can be e.g., an electron applicator or a stereotactic cone. Accessory Clearance Interlock An interlock triggered by an actual value being outside of tolerance from the planned value. Out of Tolerance Interlock The interlock was resolved, and treatment delivery was continued. Interlock Resolved The total dose length product for irradiation events within in the defined scope of accumulation that were computed using the same phantom. When head and body are imaged within the same study and 16cm and 32cm phantoms are used, respectively. CT Dose Length Product Sub-Total Marker used in a registration process. RT Registration Mark A volume whose surface represents an isodose. Isodose Volume Region defined by the spatial extent of a radiation dose. Radiotherapy Dose Region Images that contain quality control material for the current procedure. Quality control material image Tissue that is other than that which is of interest for the purpose of the task. Segmented non-brain tissue in an image where the primary purpose is to segment the brain and/or its structure, and non-brain tissue that is distinct from background needs to be identified. Tissue not of interest Requested data cannot be read from storage media, e.g., data physically deleted, or storage media no longer available. Data Not Accessible from Storage The SOP Instance is a Key Object Selection Document, used for referenced object change management, that has had its directives processed and is no longer to be used (see . Processed Key Object Selection The SOP Instance has been replaced by a SOP Instance with an alternate encoding. The alternate encoding may utilize a different SOP Class or have different image quality characteristics (e.g., lossy compression). Replaced by Alternate Representation A grouping of related measurements and calculations that share a common context and that serves as a reference against which similar measurement groups are compared. Reference Measurement Group A method for detecting a shear wave in ultrasound data based on the displacement of particles relative to their referenced baseline positions. Particle Displacement Method A method for detecting a shear wave in ultrasound data based on estimated particle velocity. Particle velocity is estimated from frame to frame particle displacement. Particle Velocity Method The center frequency of the range over which the shear wave dispersion slope was assessed. Shear Wave Dispersion Slope Center Frequency Method used to detect and characterize a shear wave motion signal in an ultrasound signal. Shear Wave Detection Method A signal processing filter of the Butterworth type. Butterworth filter A signal processing filter of the Chebyshev type. Chebyshev filter An elliptic signal processing filter. Elliptic filter A signal processing filter of the Bessel type. Bessel filter A signal processing filter of the Gaussian type Gaussian filter A K-type (constant k) signal processing filter. K-type filter An M-derived (m-type) signal processing filter. M-derived filter A double-m-derived (mm'-type) signal processing filter. Double-m-derived filter A signal processing filter of the Bode type. Bode filter A signal processing filter of the Zobel type. Zobel filter A finite impulse response (FIR) signal processing filter. FIR filter A cascaded integrator–comb (CIC) signal processing filter. CIC filter An infinite impulse response (IIR) signal processing filter. IIR filter A biquadratic signal processing filter (second order recursive linear filter). Biquad filter Frequency in Hz divided by ½ of the sampling rate. Hz normalized Frequency in Hz divided by ½ of the sampling rate and then multiplied by π (pi). Hz angular Ratio of output magnitude to input magnitude, has no units and a value between 0-1. Magnitude normalized The type of entity that is the subject of a specific observation, such as a measurement or qualitative evaluation. A region of interest, image, series of images, study or patient.This is distinct from the Subject Class used in Observation Context, which more generally specifies the entire subject, usually the patient. Specific observation subject class A single two-dimensional pixel plane of an image.Usually used in the context of a multi-frame image. Image frame Acquisition of patient positioning information using continuous megavoltage acquisition during treatment delivery. RT Patient Position Acquisition, Integrated Dose MV Acquisition of patient positioning information using a radiation-sensitive film suited for megavoltage radiation. RT Patient Position Acquisition, Film Cassette MV Acquisition of patient positioning information using a radiation-sensitive film suited for photon radiation. RT Patient Position Acquisition, Film Cassette kV Acquisition of patient positioning information using kilovoltage Cone-Beam CT imaging. RT Patient Position Acquisition, Cone-Beam CT kV Acquisition of patient positioning information using kilovoltage conventional CT imaging. RT Patient Position Acquisition, Conventional CT kV Acquisition of patient positioning information using megavoltage Cone-Beam CT imaging. RT Patient Position Acquisition, Cone-Beam CT MV Acquisition of patient positioning information using megavoltage conventional CT imaging. RT Patient Position Acquisition, Conventional CT MV The point location defined as the nominal source of radiation used for imaging. Nominal Imaging Source Location Image(s) of the patient used to provide a reference for positioning of the patient for the planned treatment. RT Patient Positioning Reference Image The type of method used to start the acquisition. Acquisition Initiation Type The acquisition trigger is not specified. Acquisition may be initiated manually by the device operator. Acquisition Initiation not defined The acquisition is started before delivering the therapeutic radiation. It is expected that the therapeutic beam is not started before the acquisition is completed. Acquisition Initiation before start of Radiation The acquisition is started after delivering the therapeutic radiation. Acquisition Initiation after end of Radiation The acquisition is started when the triggering parameter reaches specific value(s). Acquisition Initiation by triggering parameter Flag denoting whether the acquisition is to be repeated in regular intervals separated by a certain increment. Incremental Acquisition Triggering A single parameter from which the absorbed dose delivered can be calculated through a calibration procedure with additional information. Meterset Angle in degrees about the Y-axis of the Equipment Coordinate System by which the source is rotated. A Continuous Rotation Angle is an angle in the range (-∞,+∞). Continuous Rotation Angle represent a rotation direction and magnitude. The magnitude is not limited to be between 0 and 360 degrees. Source Continuous Roll Angle Time elapsed after the start of the delivery of an RT Radiation. Time after start of Radiation Delivered percentage of the duration of a Radiation at a given point in time. The denominator is the duration of time that the beam is expected to be on between the start and the end of the delivery of an RT Radiation. The numerator is the duration of time that the beam has been on since the start of the first beam-on. Both durations exclude "beam-hold" periods within the treatment delivery (e.g. during gated treatments). Percentage of expected beam-on time of Radiation Distance from the imaging source, in mm, to the gantry rotation axis of a IEC C-Arm Device. This parameter is not specifically defined by , but is consistent with IEC61217 Imaging Source to Axis Distance X-Ray Image Receptor Radial Displacement From Isocenter, in mm (in the IEC GANTRY Coordinate System) as defined by . IEC61217 X-Ray Image Receptor Radial Displacement from Isocenter X-Ray Image Receptor Longitudinal Displacement, in mm (in the IEC GANTRY Coordinate System) as defined by . IEC61217 X-Ray Image Receptor Longitudinal Displacement X-Ray Image Receptor Lateral Displacement, in mm (in the IEC GANTRY Coordinate System) as defined by . IEC61217 X-Ray Image Receptor Lateral Displacement X-Ray Image Receptor rotation (around the z-axis of the IEC X-RAY IMAGE RECEPTOR Coordinate System) as defined by . DICOM represents this value as a Continous Rotation Angle in degrees. IEC61217 X-Ray Image Receptor Rotation Lowest energy for acquiring an image as configured on the device. Configured Lowest Imaging Energy Default energy for acquiring an image as configured on the device. Configured Default Imaging Energy Ultrasonic transducer geometry characterized by multiple transducer elements arranged in a grid on a plane. Planar matrix ultrasound transducer geometry Ultrasonic transducer geometry characterized by multiple transducer elements arranged on a hemispherical surface. Hemispherical ultrasound transducer geometry The subject is illuminated from a single direction. Single-side illumination The subject is illuminated from two distinct directions. Dual-side illumination The subject is illuminated from more than two (potentially a very large number of) distinct directions. Multi-side illumination The subject is illuminated through the transducer. Light may pass through the transducer at one or more locations. Through-transducer illumination The subject is illuminated internally. Light is delivered via a device (other than the transducer) inside the body. Interstitial illumination Ultrasound Transducer that utilizes Piezo-composite crystalline structures. Piezocomposite Transducer Ultrasound Transducer that utilizes Micro-electro-mechanical systems (MEMS)-based structures. MEMS-based Transducer Ultrasound Transducer that utilizes interferometric detection systems. Interferometric Transducer Mechanism for correction of data using a sound propagation model based on a single speed of sound, where the speed for the acoustic coupling medium (if present) is assumed to be the same as for the imaged object. Uniform Speed of Sound Correction Mechanism for correction of data using a sound propagation model based on two speeds of sound, one for the acoustic coupling medium and one for the imaged object. Dual Speed of Sound Correction Mechanism for correction of data using a sound propagation model based on a speed of sound map that defines the speed of sound on a per-pixel basis. Speed of Sound Map Correction A family of algorithms for reconstructing an image from measured data by back-projection over spheres or parts of spheres. May include linear or nonlinear processing steps before and/or after the back-projection step. Includes methods termed ‘beamforming’ and ‘delay-and-sum’. Spherical Back Projection A family of algorithms for reconstructing an image from measured data by iteratively adjusting the image to minimize a cost function between the data and a numerical model or that uses non-iterative (e.g. time-reversal) methods, or that performs inversion of a forward model matrix. Numerical Acoustic Model Signal intensity of a Blood Deoxygenation Level image. Blood Deoxygenation Level An interlock triggered during scan spot delivery that is not covered by a more specific code. Scan Spot Interlock An interlock triggered by the scan spot position being outside of tolerance. Scan Spot Position Interlock An interlock triggered by the scan spot size being outside of tolerance. Scan Spot Size Interlock An interlock triggered by the Meterset delivered for a spot being outside of tolerance. Scan Spot Meterset Interlock An interlock triggered by detection of radiation when the beam is supposed to be off. Radiation Detected During Beam Hold Interlock An interlock triggered by a multileaf collimator (MLC) leaf position being outside of tolerance. MLC Position Interlock An interlock triggered by the detected Meterset rate being outside of tolerance. Meterset Rate Interlock An interlock triggered by the detected energy of the beam being outside of tolerance. Beam Energy Interlock A visual assessment of the coloration of a skin lesion. Skin lesion color The anatomy of the subject prior to the effect of a surgical procedure. Pre-surgical anatomy Non-REM Sleep Stage 1 is the transition between wakefulness and sleep. Sleep Stage N1 Non-REM Sleep Stage 2 is light sleep. Sleep Stage N2 Non-REM Sleep Stage 3 is deep sleep. Sleep Stage N3 The adjustable distance between the seat pan (the resting place for the patient’s bottom) and the nominal floor of the upright fixation device. Adjustment allows the feet to be placed firmly on the nominal floor without the legs being stretched or too cramped. Seat Pan Height The adjustable angle of the pitch of the seat pan. Adjustment provides thigh support while pitching downward changes the angle between the upper legs (knee to hip) and the abdomen. An angle of zero is a typical sitting position. A large positive angle, such as 75, puts a person in a nearly standing stance. Seat Pan Pitch Angle The adjustable angle of the pitch of the backrest. Adjustment controls the angle of the patient’s back (when in a nominally seated or upright position) with respect to gravity. Typically tilted back a bit so that the back is resting and slightly supported. An angle of zero means the backrest is vertical. A positive angle means the patient is reclining. Backrest Pitch Angle The adjustable distance between the shin rest and the nominal center under the seat of the chair. Adjustment accommodates the leg length and stance of the patient (the stance of the patient is adjusted primarily through the seat pan pitch angle and the backrest fixation pitch angle). Shin Rest Position The adjustable distance between the heel stop and the shin rest. Adjustment accommodates the patient foot size, shin rest position, lower leg length, and the angle of the lower legs with respect to gravity. The zero point is device-specific. Heel Stop Position The adjustable lateral distance between the left arm rest and patient’s thorax. The zero point is device-specific. Left Arm Rest Position The adjustable angle of the pitch of the left arm rest. Adjustment controls one of the angles of the elbow. An angle of zero means the arm rest is parallel to the ground. Left Arm Rest Pitch Angle The adjustable angle of the roll of the left arm rest. Adjustment controls the roll angle of the lower arm. An angle of zero means the arm rest is parallel to the ground. Left Arm Rest Roll Angle The adjustable lateral distance between the right arm rest and the patient’s thorax. The zero point is device-specific. Right Arm Rest Position The adjustable angle of the pitch of the right arm rest. Adjustment controls one of the angles of the elbow. An angle of zero means the arm rest is parallel to the ground. Right Arm Rest Pitch Angle The adjustable angle of the roll of the right arm rest. Adjustment controls the roll angle of the lower arm. An angle of zero means the arm rest is parallel to the ground. Right Arm Rest Roll Angle Whether the hand grips are inserted into the backrest or not. If hand grips are present, it is implicit that the patient is intended to grip the hand grips with their hands. Hand Grips Presence A fixation device that immobilizes the patient’s shins by the natural weight and pressure of the shins against the device. Shin Rest A fixation device that immobilizes the heels of the patient in counterpoint to the shin rest. Heel Stop A fixation device placed above the patient’s shoulders along the back rest, such that when gripped, ensures that the patient’s arms and elbows are lifted and not obstructing lateral access to the chest or breasts. Hand Grips A fixation device that supports the thighs (and bottom) of the patient. The seat pan is distinct from the backrest. Seat Pan Classification of a Waveform annotation as a pattern. Pattern Event Classification of a Waveform annotation as belonging to EEG. EEG Annotation Classification of a Waveform annotation as belonging to ECG. EMG Annotation Classification of a Waveform annotation as belonging to EOG. EOG Annotation Classification of a Waveform annotation as an event, which occurred in the recording device or in the environment (e.g. the room). Device-related and Environment-related Event Classification of a Waveform annotation as a description of the patient’s consciousness. Patient Consciousness Classification of a Waveform annotation as belonging to ECG. ECG Annotation A Waveform annotation report comprising neurophysiology annotations added during recording. Neurophysiology Recording Annotations A Waveform annotation report containing neurophysiology annotations resulting from post-hoc review. Neurophysiology Post-hoc Review Annotations A Waveform annotation report containing neurophysiology annotations resulting from automated analysis. Neurophysiology Automated Analysis Annotations A container that groups waveform annotations. Waveform Annotations The neurophysiology or cardiology procedure to which annotations apply. Procedure annotated A container that groups a set of associated waveform annotations. Waveform Annotation Group A number identifying a set of associated annotations. Waveform Annotation Group Number A text describing a set of associated annotations. Waveform Annotation Group Label Coded modifier for a coded waveform annotation. Waveform Annotation Modifier A free text information. Annotation Note A container that references properties of involved waveforms Waveform Library A container that groups common information about a set of involved waveforms Waveform Library Group A container that groups common information about a waveform multiplex group comprising a set of recording channel Waveform Library Entry Multiplex Group Descriptors Identifying number of a waveform multiplex group Multiplex Group Number Unique identifier of a waveform multiplex group Multiplex Group UID Frequency of waveform digitalization Sampling Frequency Number of channels in a waveform multiplex group Number of Channels Date and Time of an Acquisition Acquisition DateTime UID of common synchronization environment. Synchronization Frame of Reference UID 50 Hz or 60 Hz line noise artifact from a power supply Line noise artifact Video recording turned on automatically or by the operator Video recording on Video recording turned off automatically or by the operator Video recording off Machine code for when the preamplifier (the headbox in case of EEG recordings) is connected to the recording device. Preamplifier connected Machine code for when preamplifier (the headbox in case of EEG recordings) is disconnected. Preamplifier disconnected A breakout box was connected or reconnected. A breakout box is a box into which electrode cables are plugged, but the analog electrical signal of those cables is passed from the breakout box to the preamplifier (the headbox in case of EEG recordings) through another cable, so there is no preamp or A/D conversion in the box. Breakout box connected A breakout box was disconnected. A breakout box is a box into which electrode cables are plugged, but the analog electrical signal of those cables is passed from the breakout box to the preamplifier (the headbox in case of EEG recordings) through another cable, so there is no preamp or A/D conversion in the box. Breakout box disconnected The event button was pressed for the purpose of capturing an event. The event button is a button that a medical staff member, patient, or family/friend of patient can press when the patient (who is getting the recording) has an event (such as an abnormal movement or seizure). Event button pressed The event button was pressed for the purpose of testing. Testing the event button usually occurs at the beginning of a neurophysiology recording to make sure the mechanism is working. Event button test A tap test has started. A tap test is when the operator taps each electrode in sequence to verify that each electrode is plugged into the correct channel of the preamplifier (the headbox in case of EEG recordings). Tap test begin A tap test has finished. A tap test is when the operator taps each electrode in sequence to verify that each electrode is plugged into the correct channel of the preamplifier (the headbox in case of EEG recordings). Tap test end The counted group of follicles that fall within a specified type and size range. Follicle Count Group The lowest value that is included in a diameter range. Diameter Range Minimum Value The highest value that is included in a diameter range. Diameter Range Maximum Value The lowest value that is included in a volume range. Volume Range Minimum Value The highest value that is included in a volume range. Volume Range Maximum Value The number of follicles observed in a specified size range. Number of Follicles in Range The total number of antral follicles counted in both ovaries. Total Antral Follicle Count The type of ovarian follicle as determined by its developmental stage. Follicle Type An antral follicle that has grown to dominate its neighboring follicles which then undergo atresia. Typically, only one or two antral follicles will become dominant in each cycle and mature to ovulation. See also Terms and Definitions in Coelo Neto et al, 2017. Counting ovarian antral follicles by ultrasound: a practical guide. Available at: . Dominant Follicle An ovarian follicle that has progressed from the secondary stage and has developed a small fluid-filled cavity called the antrum. Antral Follicles are also referred to as Tertiary Follicles or Graafian Follicles. Antral Follicle An ovarian follicle that has progressed from the primary stage and has added theca cells. Secondary Follicle An ovarian follicle that has been activated from the primordial stage. Primary Follicle An ovarian follicle that is quiescent in its original state. Primordial Follicle The identifier of a referenced follicle count group. Follicle Count Group Identifier A measure of the pair-wise overlap of two sets defined as two times the intersection of the two samples, divided by the sum of the two samples. Also known as the Sørensen–Dice coefficient. The samples may be points representing pixels or voxels in a geometric region. 1. Dice LR. Measures of the Amount of Ecologic Association Between Species. Ecol. 1945 Jul;26(3):297–302. doi:10.​2307/​19324092. Taha AA, Hanbury A. Metrics for evaluating 3D medical image segmentation: analysis, selection, and tool. BMC Med Imag. 2015 Dec;15(1):29. doi:10.​1186/​s12880-​015-​0068-​x Dice Similarity Coefficient A measure of the pair-wise overlap of two samples defined as the intersection of the two regions, divided by the union of the two samples. Also known as the Intersection Over Union (IoU). The samples may be points representing pixels or voxels in a geometric region. 1. Jaccard P. The Distribution of the Flora of the Alpine Zone. New Phytol. 1912 Feb;11(2):37–50. doi:10.​1111/​j.​1469-​8137.​1912.​tb05611.​x2. Taha AA, Hanbury A. Metrics for evaluating 3D medical image segmentation: analysis, selection, and tool. BMC Med Imag. 2015 Dec;15(1):29. doi:10.​1186/​s12880-​015-​0068-​x Jaccard Index A count of the number of pixels in an image or a region of an image. Number of pixels A count of the number of voxels in a volume. Number of voxels Values are derived by mean intensity projection of acquired data. Mean intensity projection Values are derived by median intensity projection of acquired data Median intensity projection Values are derived by summation of values in the projection of acquired data Summation projection Ventriculoatrial time interval (VA time), defined as the interval between the onset of ventricular systole and the onset of atrial systole. Recommended for assessment of Fetal arrhythmia per Fetal Echo Guideline Japan – Second edition 2021. Commonly measured by doppler using a view aligned with a pair of locations: the Superior Vena Cava and the Ascending Aorta, or the Left Ventricular Inflow Tract and the Left Ventricular Outflow Tract, or a Pulmonary Artery and Pulmonary Vein. In a coded measurement, when only one finding location is recorded, the partner location is implicit. Ventriculoatrial time interval Atrioventricular time interval (AV time or AVI), defined as the interval between the onset of atrial systole and the onset of ventricular systole. Commonly measured by doppler using a view aligned with a pair of locations: the Superior Vena Cava (SVC) and the Ascending Aorta, or the Left Ventricular Inflow Tract and the Left Ventricular Outflow Tract, or a Pulmonary Artery and a Pulmonary Vein. In a coded measurement, when only one finding location is recorded, the partner location is implicit. Atrioventricular time interval The shortest distance (LD) between any point on the inside of the atrium wall and any point on the outside of the descending thoracic aorta wall measured in a four-chamber view of the heart. Left Atrium-Descending Aorta Distance Post-Left Atrium Space (PLAS) Index is the distance between the left atrium and the descending thoracic aorta divided by the diameter of the descending thoracic aorta, where both measurements are taken in the same view (thus defining the point in the descending thoracic aorta for the diameter measurement). Used in fetal echo for diagnosis of isolated Total Anomalous Pulmonary Venous Connection (TAPVC). doi:10.​9794​/​jspccs.​32.​387 Post-Left Atrium Space Index The pulsatility index at the middle cerebral artery of the fetus divided by the pulsatility index at the umbilical artery. Abbreviated CPR. Cerebroplacental ratio The pulsatility index at the umbilical artery divided by the pulsatility index at the middle cerebral artery of the fetus. Umbilicocerebral ratio The ratio of the peak retrograde flow during the A-wave to the peak forward flow during the S-wave, as measured at the inferior vena cava using pulsed-wave doppler. Abbreviated a/S. doi:10.​1159/​000263589 (1990)doi:10.​1002/​uog.​142 IVC preload index The ratio of the peak forward flow during the S-wave to the peak retrograde flow during the A-wave, as measured at the inferior vena cava using pulsed-wave doppler. This is the inverse of the Preload index. IVC S/a A blood flow index calculated by subtracting the peak retrograde flow during the A-wave from the peak forward flow during the S-wave, then dividing by the peak forward flow during the D-wave, i.e., (S-a)/D. doi:10.​1002/​uog.​902 Peak Velocity Index The pulsatility index measured in the ductus venosus during the full cardiac cycle in pulsed doppler mode in any view. Abbreviated PIV. DV Pulsatility Index in Veins The peak velocity index measured in the ductus venosus during the full cardiac cycle in pulsed doppler mode in any view. Abbreviated PVIV. DV Peak Velocity Index in Veins The length of the right ventricle measured at end diastole in 2D mode using a method that includes the inlet portion of the chamber in any view. Right ventricular inlet length The length of the left ventricle measured at end diastole in 2D mode using a method that includes the inlet portion of the chamber in any view. Left ventricular inlet length A method of measuring a cardiac chamber length that includes the inlet portion of the chamber in the length. Inlet Included A method of measuring hemodynamics in the umbilical cord by taking the measurement in a free loop of the cord. A free loop is a portion of the umbilical cord that is not attached to the fetal body or the placenta and is instead floating freely within the amniotic fluid. Free Cord Loop Method The ductal arch formed by the ductus arteriosus as it travels from its origin at the pulmonary artery to the point of entry into the descending aorta. doi:10.​1002/​j.​2205-​0140.​2013.​tb00243.​x Ductus Arteriosus Arch A planar view of the heart showing the aortic valve, ascending aorta, aortic arch, descending aorta and inferior vena cava. Aortic arch view A planar oblique short-axis view of the heart showing the pulmonary trunk (main pulmonary artery, right pulmonary artery) and the ductus arteriosus. Oblique short axis view at ductus arteriosus A planar short-axis view of the heart showing the pulmonary valve, main pulmonary artery, right and left pulmonary arteries. Short axis view at pulmonary artery level An axial planar view of the heart showing the main pulmonary artery, ascending aorta in cross-section, and superior vena cava (SVC) in cross-section. One or both branch pulmonary arteries may also be included. Abbreviated 3VV. Three vessel view An axial planar view of the heart showing the trachea and the aortic and ductal arches converging to form the proximal descending thoracic aorta. Abbreviated 3VT. Three vessel and trachea view An axial planar view of the heart showing the subaortic area, aortic valve, supravalvular region, and ascending aorta. Left ventricular outflow tract view An axial planar view of the heart showing both ventricles and both atria. The view does not necessarily include the apex of the heart. Four chamber view Report section for assessment of cardiovascular observations that evaluate fetal well-being. Fetal Cardiovascular Profile A point-based assessment of abnormal fluid accumulation in fetal body areas. This is a component of the Fetal Cardiovascular Profile Score. Hydrops Fetalis Score A point-based assessment of heart size relative to thoracic size based on observations of the circumferences or areas. This is a component of the Fetal Cardiovascular Profile Score. Cardiothoracic Size Ratio Score A point-based assessment of cardiac function based on observations of valve inflow and regurgitation patterns and ventricular shortening. This is a component of the Fetal Cardiovascular Profile Score. Cardiac Function Score A point-based assessment of venous flow based on Doppler observations of the umbilical vein and ductus venosus. This is a component of the Fetal Cardiovascular Profile Score. Venous Doppler Score A point-based assessment of arterial flow based on Doppler observations of the umbilical artery. This is a component of the Fetal Cardiovascular Profile Score. Arterial Doppler Score A point-based score that sums the scores of five component assessments of cardiovascular observations to evaluate fetal well-being according to Makikallio et al, Human fetal cardiovascular profile score and neonatal outcome in intrauterine growth restriction. Ultrasound Obstet Gynecol 2008; 31: 48‒54 doi:10.​1002/​uog.​5210 Abbreviated CVPS. Fetal Cardiovascular Profile Score The velocity time integral measured in the pulmonary vein for the antegrade flow during the full cycle in pulsed doppler mode in any view. Forward flow occurs during the D-wave and the S-wave. PV VTI Forward The velocity time integral measured in the pulmonary vein for the retrograde flow during the A-wave in pulsed doppler mode in any view. PV VTI Reverse The ratio of the retrograde velocity time integral to the antegrade velocity time integral at the pulmonary vein. PV VTIR/VTIF ratio The volume rate of blood output by the right ventricle derived from the right ventricle stroke volume and heart rate. Abbreviated RVCO. Right Ventricle Cardiac Output The volume rate of blood output by the heart derived from the cardiac output of the left and right ventricles. Abbreviated CCO. Combined Cardiac Output The diameter of the annulus of the mitral valve measured during diastole in 2D mode in a short axis view at the level of the mitral valve. Mitral valve annulus diameter The diameter of the annulus of the tricuspid valve measured during diastole in 2D mode in a short axis view at the level of the mitral valve. Tricuspid valve annulus diameter The peak velocity measured in the inferior vena cava during the S-wave in pulsed doppler mode in any view. IVC S-wave peak velocity The peak velocity measured in the inferior vena cava during the a-wave in pulsed doppler mode in any view. IVC a-wave peak velocity A report containing the quantitative results of human, or machine analysis of imaging acquired prior to a transcatheter structural heart procedure, focusing on measurements used to guide procedural planning and device selection. Pre-procedural Structural Heart Measurement Report A report containing the quantitative results of human, or machine analysis of imaging acquired during a transcatheter structural heart procedure, focusing on real-time measurements to guide procedural execution and assess immediate outcomes. Intra-procedural Structural Heart Measurement Report A report containing the quantitative results of human, or machine analysis of imaging acquired after a transcatheter structural heart procedure, focusing on the evaluation of procedural success, device placement, and patient outcomes. Post-procedural Structural Heart Measurement Report A mid-esophageal view directed anteriorly with the transesophageal transducer in its baseline orientation. Mid-esophageal 0 degree TEE A mid-esophageal plane directed 45 degrees clockwise from the mid-esophageal 0 degree TEE. Mid-esophageal 45 degree TEE A mid-esophageal plane directed 60 degrees clockwise from the mid-esophageal 0 degree TEE. Mid-esophageal 60 degree TEE A mid-esophageal plane directed 90 degrees clockwise from the mid-esophageal 0 degree TEE. Mid-esophageal 90 degree TEE A mid-esophageal plane directed 135 degrees clockwise from the mid-esophageal 0 degree TEE. Mid-esophageal 135 degree TEE A device, in the form of a disk and cylindrical lobe connected by a central waist, for sealing off a left atrium appendage. Ball and disk type left atrial appendage closure device A spherical device for sealing off a left atrium appendage. Ball type left atrial appendage closure device A device for sealing off a left atrium appendage. Left atrial appendage closure device The anatomical orifice connecting the left atrial appendage to the left atrium of the heart. Ostium of Left Auricular Appendage The distance from the mitral leaflets to the level of the transseptal puncture measured during systole in a four-chamber view, with the measurement line drawn parallel to the atrial septum. Transseptal puncture height The cross-sectional area of the ascending aorta measured between the aortic sinuses of Valsalva and normal tubular configuration of the aorta during diastole in 2D or 3D, in the long axis view. Aorta sinotubular junction area The qualitative severity of calcification of the annulus of the aortic valve, evaluated during systole, in any view at the level of the annulus of the aortic valve. Aortic annulus calcification severity The widest diameter of the annulus of the aortic valve measured at systole, in a short axis view at the level of the annulus of the aortic valve. Aortic annulus max diameter The narrowest diameter of the annulus of the aortic valve measured at systole, in a short axis view at the level of the annulus of the aortic valve. Aortic annulus min diameter The length of the perimeter of the annulus of the aortic valve measured at systole, in a short axis view at the level of the annulus of the aortic valve. Aortic annulus perimeter The volume of calcification of the annulus of the aortic valve, evaluated during systole, in a short axis view at the level of the annulus of the aortic valve, using a qualitative method. Aortic calcification volume The qualitative severity of calcification of the commissures of the aortic valve, evaluated at any time during the cardiac cycle, in any view at the level of the annulus of the aortic valve. Aortic commissures calcification severity The distance from the aortic annulus to the sinotubular junction measured during diastole in the long axis view. Aortic root height The diameter of the ascending aorta measured at the level of the sinotubular junction during diastole, in any view. Aortic sinotubular junction diameter The area within the sinus of valsalva measured during diastole, in a short axis view, at the level of the sinus of valsalva. Aortic sinus of valsalva area The length of coaptation (where the aortic valve leaflets are in contact), measured during diastole in the long axis view. Aortic valve coaptation length The angle between the two commissures of the noncoronary leaflet of the aortic valve measured during diastole, in a short axis view at the level of the aortic valve. Aortic valve noncoronary leaflet intercommissural angle The angle between the two commissures of the right leaflet of the aortic valve measured during diastole, in a short axis view at the level of the aortic valve. Aortic valve right leaflet intercommissural angle The angle between the two commissures of the left leaflet of the aortic valve measured during diastole, in a short axis view at the level of the aortic valve. Aortic valve left leaflet intercommissural angle The straight-line distance between the two commissures of the left leaflet of the aortic valve measured during diastole, in a short axis view at the level of the aortic valve. Aortic valve noncoronary leaflet intercommissural distance The straight-line distance between the two commissures of the right leaflet of the aortic valve measured during diastole, in a short axis view at the level of the aortic valve. Aortic valve right leaflet intercommissural distance The straight-line distance between the two commissures of the left leaflet of the aortic valve measured during diastole, in a short axis view at the level of the aortic valve. Aortic valve left leaflet intercommissural distance The perpendicular distance from the plane of the annulus to the tip of the left coronary leaflet measured during diastole, in a long axis view. Aortic valve left coronary leaflet height The distance along the surface of the left coronary leaflet from the tip to the hinge point of the leaflet to the aortic annulus, measured during diastole, in a long axis view. Aortic valve left coronary leaflet length The perpendicular distance from the plane of the annulus to the tip of the noncoronary leaflet measured during diastole, in a long axis view. Aortic valve noncoronary leaflet height The distance along the surface of the noncoronary leaflet from the tip to the hinge point of the leaflet to the aortic annulus, measured during diastole, in a long axis view. Aortic valve noncoronary leaflet length The perpendicular distance from the plane of the annulus to the tip of the right coronary leaflet measured during diastole, in a long axis view. Aortic valve right coronary leaflet height The distance along the surface of the right coronary leaflet from the tip to the hinge point of the leaflet to the aortic annulus, measured during diastole, in a long axis view. Aortic valve right coronary leaflet length The diameter within the ascending aorta measured during diastole in 2D, in any view at the level of the right pulmonary artery. Ascending Aorta diameter The distance between the aortic annulus and the left main coronary ostium measured at their closest points, during systole, in a long axis view. Left main coronary ostium height The qualitative severity of calcification of the left ventricular outflow tract, from the annular plane to 5 mm below, evaluated at any time during the cardiac cycle and in any view. Left ventricular outflow tract calcification severity The maximum thickness of the largest atherosclerotic plaque deposit found within the ascending aorta, measured during systole, in the view that demonstrates the thickest plaque, using any appropriate imaging method Maximum aortic plaque thickness The distance between the aortic annulus and the right main coronary ostium measured at their closest points, during systole, in a long axis view. Right coronary artery ostium height The internal longitudinal length of the right ventricle from the apex to the tricuspid annulus, measured during diastole, in a four-chamber view. Right ventricle diastolic major axis The internal diameter of the right ventricle from the interventricular septum to the free wall, measured at the level of the papillary muscles during diastole, in a four-chamber view. Right ventricular diastolic mid segment minor axis The internal diameter of the right ventricle from the interventricular septum to the free wall, measured in the basal third of the right ventricle during diastole, in a four-chamber view. Right ventricular diastolic basal minor axis The distance along the hinge line of the A1 scallop of the anterior leaflet of the mitral valve, measured during systole, in the long axis view. Mitral anterior leaflet A1 scallop length The distance along the hinge line of the A2 scallop of the anterior leaflet of the mitral valve, measured during systole, in the long axis view. Mitral anterior leaflet A2 scallop length The distance along the hinge line of the A3 scallop of the anterior leaflet of the mitral valve, measured during systole, in the long axis view. Mitral anterior leaflet A3 scallop length The area of the atrial surface of the anterior leaflet of the mitral valve measured during systole, in a 3D en face view of the mitral valve. Mitral anterior leaflet area The angle between the plane passing through the aortic annulus and the plane passing through the mitral annulus measured during systole, in the long axis view. Aorto-mitral inter annular angle The straight-line distance between the two commissures of the anterior and posterior leaflets of the mitral valve measured during diastole, in a two-chamber view. Mitral commissure distance The straight-line distance between a point in the right trigone region of the mitral annulus and a point in the left trigone region of the mitral annulus, measured during systole, in a 3D en face view of the mitral valve. Mitral trigone-to-trigone distance The longitudinal displacement of the plane of the mitral annulus over the course of a cardiac cycle, measured any view. Mitral annular excursion The diameter of the annulus of the mitral valve measured from the anterolateral aspect to the posteromedial aspect, during systole, in a 3D en face view of the mitral valve. Mitral annulus anterolateral to posteromedial diameter The diameter of the annulus of the mitral valve measured from the anterior aspect to the posterior aspect, during systole, in the short axis view at the level of the mitral annulus. Mitral annulus anteroposterior diameter The area within the annulus of the mitral valve measured during systole, in a short axis view at the level of the annulus of the mitral valve. Mitral annulus area The qualitative severity of calcification of the annulus of the mitral valve, evaluated during diastole, in any view, at the level of the annulus of the mitral valve. Mitral annulus calcification severity The diameter of the annulus of the mitral valve at the level of the commissures of the annulus, measured during systole, in a 3D en face view of the mitral valve. Mitral annulus commissural diameter The ratio of the anteroposterior diameter of the mitral annulus and the anterolateral diameter of the mitral annulus, measured during systole. Mitral annulus diameter ratio The sum of the vertical distance from the highest point on the mitral annulus to the mitral annular plane and the vertical distance from the lowest point on the mitral annulus to the mitral annular plane. It is measured at systole, in a 3D transverse view of the mitral valve. Mitral annulus height The angle between a vector from the furthest anterior aspect of the annulus to the midpoint of the commissural diameter and a vector from the furthest posterior aspect of the annulus to the midpoint of the commissural diameter. It is measured at systole, in a 3D view of the mitral valve. Mitral annulus nonplanarity angle The length of the perimeter of the annulus of the mitral valve measured during systole, in a short axis view at the level of the annulus of the mitral valve. Mitral annulus perimeter The length of coaptation (where the anterior and posterior leaflets are in contact) of the mitral valve, measured during systole, in a 3D view. Mitral valve coaptation length The distance between the two papillary muscle tips of the mitral valve, measured during diastole in a four-chamber view. Mitral valve interpapillary distance The distance between the anterolateral papillary muscle tip and a point in the left trigone region of the mitral annulus, measured during systole in a four-chamber view. Anterolateral papillary muscle to the left trigone The distance between the posteromedial papillary muscle tip and a point in the right trigone region of the mitral annulus, measured during systole in a four-chamber view. Posteromedial papillary muscle to the right trigone The surface area of the portion of the mitral valve leaflets that is displaced above the annular plane (prolapsed) measured during systole, in a short axis view. Mitral valve prolapse area The volume encompassed by annular plane and the portion of the mitral valve leaflets that is displaced above the annular plane (prolapsed) measured during systole, in a short axis view. Mitral valve prolapse volume The distance between the tip of the free edge of a flail mitral valve leaflet or segment and the plane of the mitral annulus measured during systole, in any view. Mitral valve segment flail gap The ratio of the transverse diameter of the left ventricle at the level of the papillary muscle base divided by the longitudinal distance between the level of the papillary muscle base and the mitral annulus plane, measured at diastole in a four-chamber view. See doi:10.1016/j.jcmg.2008.12.025 Mitral valve sphericity index The perpendicular distance from the point of coaptation (where the anterior and posterior leaflets of the mitral valve meet) to the annular plane measured during systole, in a 3D or 2D view at the level of the mitral annulus. Mitral valve tenting height The area between the ventricular surface of the leaflets of the mitral valve and the annular plane measured during systole, in a 3D view at the level of the mitral annulus. Mitral valve tenting area The distance from the point where the A1-P1 scallops of the mitral valve contact (coaptation point) to the annular plane measured during systole, in a four-chamber view at the level of the mitral annulus. Mitral valve tenting segment height A1-P1 The distance from the point where the A2-P2 scallops of the mitral valve contact (coaptation point) to the annular plane measured during systole, in a four-chamber view at the level of the mitral annulus. Mitral valve tenting segment height A2-P2 The distance from the point where the A3-P3 scallops of the mitral valve contact (coaptation point) to the annular plane measured during systole, in a four-chamber view at the level of the mitral annulus. Mitral valve tenting segment height A3-P3 The combined area of the P1, P2 and P3 leaflet scallops of the posterior mitral valve, measured during systole, in the long axis view. Posterior mitral valve leaflet area The distance along the hinge line of the posterior mitral valve P1, P2 and P3 leaflet scallops measured during systole, in the long axis view. Posterior mitral valve leaflet length The distance along the hinge line of the posterior mitral valve P1 leaflet scallop during systole, in the long axis view. Posterior mitral valve P1 leaflet scallop length The distance along the hinge line of the posterior mitral valve P2 leaflet scallop during systole, in the long axis view. Posterior mitral valve P2 leaflet scallop length The distance along the hinge line of the posterior mitral valve P3 leaflet scallop during systole, in the long axis view. Posterior mitral valve P3 leaflet scallop length The area within the annulus of the tricuspid valve measured during diastole, in a 3D en face view of the tricuspid valve. Tricuspid annulus area The area within the annulus of the tricuspid valve calculated at diastole divided by the area within the annulus of the tricuspid valve calculated at systole, in a 3D en face view of the tricuspid valve. Tricuspid annulus area diastolic systolic ratio The length of the perimeter of the annulus of the tricuspid valve measured during diastole, in a four-chamber view. Tricuspid annulus perimeter The length of coaptation (where the anterior, posterior, and septal leaflets are in contact), measured during systole, in a 3D view. Tricuspid valve coaptation length The maximum diameter of the annulus of the tricuspid valve measured during diastole, in a four-chamber view. Tricuspid valve major axis diastole The minimum diameter of the annulus of the tricuspid valve measured during diastole, in a four-chamber view. Tricuspid valve minor axis The ratio of the maximum diameter of the annulus of the tricuspid valve and the minimum diameter of the annulus of the tricuspid valve, measured during diastole, in a four-chamber view. Tricuspid valve sphericity index The distance from the point where the leaflets of the tricuspid valve contact (coaptation point) to the annular plane measured during systole, in a four-chamber 3D transverse view of the tricuspid valve. Tricuspid valve tenting height The volume of the region between atrial surface of the leaflets and the annular plane measured during systole, in a 3D view of the tricuspid valve. Tricuspid valve tenting volume The circumference of the left atrial appendage closure device after deployment, measured at the shoulder during end-systole in a 2D or 3D view of the left atrial appendage. Left atrial appendage closure device circumference The ratio of the diameter of the left atrial appendage closure device after deployment, measured at the shoulder during end-systole in a 2D or 3D view of the left atrial appendage, and diameter of the left atrial appendage closure device as specified by its manufacturer. Left atrial appendage closure device compression ratio The diameter of the left atrial appendage closure device after deployment, measured at the shoulder during end-systole in a 2D view of the left atrial appendage. Left atrial appendage closure device diameter The diameter of the left atrial appendage closure device as specified by its manufacturer. Left atrial appendage closure device size The maximum distance from the left atrial appendage orifice (the plane between the left upper pulmonary vein ridge and the left circumflex artery), to the most distal point of the left atrial appendage cavity, measured during end-diastole in a 2D view of the left atrial appendage. Left atrial appendage depth The maximum diameter of the left atrial appendage measured 1cm to 1.5cm inferior to the orifice (the plane between the left upper pulmonary vein ridge and the left circumflex artery), during end-systole, in a 2D view of the left atrial appendage. Left atrial appendage landing zone major axis The maximum diameter of the left atrial appendage orifice (the plane between the left upper pulmonary vein ridge and the left circumflex artery), measured during end-systole, in a 2D view of the left atrial appendage. Left atrial appendage major axis The minimum diameter of the left atrial appendage orifice (the plane between the left upper pulmonary vein ridge and the left circumflex artery), measured during end-systole, in a 2D view of the left atrial appendage. Left atrial appendage minor axis The perimeter of the left atrial appendage orifice (the plane between the left upper pulmonary vein ridge and the left circumflex artery), measured during end-systole, in a 3D en face view of the left atrial appendage. Left atrial appendage ostium perimeter Available data indicates that diagnostics, analytics, and treatments should consider best practices associated with female reference populations.This concept and definition taken from http:​//hl7.org​/fhir​/extensions​/StructureDefinition-​patient-​sexParameterForClinicalUse.html. Female-typical Available data indicates that diagnostics, analytics, and treatments should consider best practices associated with male reference populations.This concept and definition taken from http:​//hl7.org​/fhir​/extensions​/StructureDefinition-​patient-​sexParameterForClinicalUse.html. Male-typical vailable data indicates that diagnostics, analytics, and treatment best practices may be undefined or not aligned with sex-derived reference populations. Additional information may be available in the form of comments and/or observations.This concept and definition taken from http:​//hl7.org​/fhir​/extensions​/StructureDefinition-​patient-​sexParameterForClinicalUse.html. Specified Sex Parameters for Clinical Use category of patient who is the subject of these observations.See http:​//hl7.org​/fhir​/extensions​/StructureDefinition-​patient-​sexParameterForClinicalUse.html Subject Sex Parameters for Clinical Use Category Further explanation about the choice, intention, or context of use for the sex parameter for clinical use.See http:​//hl7.org​/fhir​/extensions​/StructureDefinition-​patient-​sexParameterForClinicalUse.html Sex Parameters for Clinical Use Category Comment Other clinical evidence or documentation that was used to determine the sex parameter for clinical use.See http:​//hl7.org​/fhir​/extensions​/StructureDefinition-​patient-​sexParameterForClinicalUse.html Sex Parameters for Clinical Use Category Reference Dave Beckett Nikki Rogers Participants in W3C's Semantic Web Deployment Working Group. Alistair Miles Sean Bechhofer An RDF vocabulary for describing the basic structure and content of concept schemes such as thesauri, classification schemes, subject heading lists, taxonomies, 'folksonomies', other types of controlled vocabulary, and also concept schemes embedded in glossaries and terminologies. SKOS Vocabulary