US Multi-frame ImageCIOD
Secondary Capture ImageCIOD
Multi-frame Single Bit SC ImageCIOD
Multi-frame Grayscale Byte SC ImageCIOD
Multi-frame Grayscale Word SC ImageCIOD
Multi-frame True Color SC ImageCIOD
X-Ray Angiographic ImageCIOD
X-Ray Radiofluoroscopic ImageCIOD
RT Structure SetCIOD
Digital X-Ray ImageCIOD
Digital Mammography X-Ray ImageCIOD
Digital Intra-Oral X-Ray ImageCIOD
RT Beams Treatment RecordCIOD
RT Brachy Treatment RecordCIOD
RT Treatment Summary RecordCIOD
VL Endoscopic ImageCIOD
VL Microscopic ImageCIOD
VL Slide-Coordinates Microscopic ImageCIOD
VL Photographic ImageCIOD
Video Endoscopic ImageCIOD
Video Microscopic ImageCIOD
Video Photographic ImageCIOD
VL Whole Slide Microscopy ImageCIOD
Real-Time Video Endoscopic ImageCIOD
Real-Time Video Photographic ImageCIOD
Grayscale Softcopy Presentation StateCIOD
Color Softcopy Presentation StateCIOD
Pseudo-Color Softcopy Presentation StateCIOD
Blending Softcopy Presentation StateCIOD
Basic Structured DisplayCIOD
XA/XRF Grayscale Softcopy Presentation StateCIOD
Advanced Blending Presentation StateCIOD
Basic Voice Audio WaveformCIOD
Ambulatory ECGCIOD
Hemodynamic WaveformCIOD
Basic Cardiac Electrophysiology WaveformCIOD
Arterial Pulse WaveformCIOD
Respiratory WaveformCIOD
General Audio WaveformCIOD
Real-Time Audio WaveformCIOD
Basic Text SRCIOD
Enhanced SRCIOD
Comprehensive SRCIOD
Key Object Selection DocumentCIOD
Mammography CAD SRCIOD
Procedure LogCIOD
X-Ray Radiation Dose SRCIOD
Spectacle Prescription ReportCIOD
Macular Grid Thickness and Volume ReportCIOD
Implantation Plan SR DocumentCIOD
Comprehensive 3D SRCIOD
Radiopharmaceutical Radiation Dose SRCIOD
Extensible SRCIOD
Acquisition Context SRCIOD
Simplified Adult Echo SRCIOD
Patient Radiation Dose Structured ReportCIOD
Planned Imaging Agent Administration SRCIOD
Performed Imaging Agent Administration SRCIOD
Rendition Selection DocumentCIOD
Enhanced MR ImageCIOD
MR SpectroscopyCIOD
Enhanced MR Color ImageCIOD
Raw DataCIOD
Enhanced CT ImageCIOD
Spatial RegistrationCIOD
Deformable Spatial RegistrationCIOD
Spatial FiducialsCIOD
Ophthalmic Photography 8 Bit ImageCIOD
Ophthalmic Photography 16 Bit ImageCIOD
Stereometric RelationshipCIOD
Hanging ProtocolCIOD
Encapsulated PDFCIOD
Encapsulated CDACIOD
Real World Value MappingCIOD
Enhanced XA ImageCIOD
Enhanced XRF ImageCIOD
RT Ion Beams Treatment RecordCIOD
Ophthalmic Tomography ImageCIOD
X-Ray 3D Angiographic ImageCIOD
X-Ray 3D Craniofacial ImageCIOD
Breast Tomosynthesis ImageCIOD
Enhanced PET ImageCIOD
Surface SegmentationCIOD
Color PaletteCIOD
Enhanced US VolumeCIOD
Lensometry MeasurementsCIOD
Autorefraction MeasurementsCIOD
Keratometry MeasurementsCIOD
Subjective Refraction MeasurementsCIOD
Visual Acuity MeasurementsCIOD
Ophthalmic Axial MeasurementsCIOD
Intraocular Lens CalculationsCIOD
Generic Implant TemplateCIOD
Implant Assembly TemplateCIOD
Implant Template GroupCIOD
RT Beams Delivery InstructionCIOD
Ophthalmic Visual Field Static Perimetry MeasurementsCIOD
Intravascular Optical Coherence Tomography ImageCIOD
Ophthalmic Thickness MapCIOD
Surface Scan MeshCIOD
Surface Scan Point CloudCIOD
Legacy Converted Enhanced CT ImageCIOD
Legacy Converted Enhanced MR ImageCIOD
Legacy Converted Enhanced PET ImageCIOD
Corneal Topography MapCIOD
Breast Projection X-Ray ImageCIOD
PatientMModule - Patient
Clinical Trial SubjectUModule - Patient
General StudyMModule - Study
Patient StudyUModule - Study
Clinical Trial StudyUModule - Study
General SeriesMModule - Series
Clinical Trial SeriesUModule - Series
DX SeriesMModule - Series
Enhanced Mammography SeriesMModule - Series
Frame of ReferenceMModule - Frame of Reference
SynchronizationCModule - Frame of Reference
General EquipmentMModule - Equipment
Enhanced General EquipmentMModule - Equipment
Enhanced Mammography ImageMModule - Image
Breast ViewMModule - Image
Image PixelMModule - Image
Enhanced Contrast/BolusCModule - Image
DeviceUModule - Image
InterventionUModule - Image
Acquisition ContextMModule - Image
Multi-frame Functional GroupsMModule - Image
(0008,0023) Content Date1Date
(0008,0033) Content Time1Time
(0020,0013) Instance Number1Integer String
(0020,0242) SOP Instance UID of Concatenation Source1CUnique Identifier
(0020,9161) Concatenation UID1CUnique Identifier
(0020,9162) In-concatenation Number1CUnsigned Short
(0020,9163) In-concatenation Total Number3Unsigned Short
(0020,9228) Concatenation Frame Offset Number1CUnsigned Long
(0022,0028) Stereo Pairs Present3Code String
(0028,0008) Number of Frames1Integer String
(0028,6010) Representative Frame Number3Unsigned Short
(5200,9229) Shared Functional Groups Sequence1Sequence
(0008,1140) Referenced Image Sequence2Sequence
(0008,9124) Derivation Image Sequence2Sequence
(0018,1006) Grid ID3Long String
(0018,7040) Grid Absorbing Material3Long Text
(0018,7041) Grid Spacing Material3Long Text
(0018,7042) Grid Thickness3Decimal String
(0018,7044) Grid Pitch3Decimal String
(0018,7046) Grid Aspect Ratio3Integer String
(0018,7048) Grid Period3Decimal String
(0018,704C) Grid Focal Distance3Decimal String
(0018,9341) Contrast/Bolus Usage Sequence1Sequence
(0018,9405) Positioner Position Sequence1Sequence
(0018,9407) Collimator Shape Sequence1Sequence
(0018,9412) XA/XRF Frame Characteristics Sequence1Sequence
(0018,9417) Frame Acquisition Sequence1Sequence
(0018,9432) Field of View Sequence1Sequence
(0018,9451) Frame Detector Parameters Sequence1Sequence
(0018,9455) Calibration Sequence1Sequence
(0018,9462) Isocenter Reference System Sequence1Sequence
(0018,9543) X-Ray Source Isocenter Primary Angle1Double
(0018,9544) X-Ray Source Isocenter Secondary Angle1Double
(0018,9545) Breast Support Isocenter Primary Angle1Double
(0018,9546) Breast Support Isocenter Secondary Angle1Double
(0018,9547) Breast Support X Position to Isocenter1CDouble
(0018,9548) Breast Support Y Position to Isocenter1CDouble
(0018,9549) Breast Support Z Position to Isocenter1CDouble
(0018,9550) Detector Isocenter Primary Angle1Double
(0018,9551) Detector Isocenter Secondary Angle1Double
(0018,9552) Detector X Position to Isocenter1CDouble
(0018,9553) Detector Y Position to Isocenter1CDouble
(0018,9554) Detector Z Position to Isocenter1CDouble
(0018,9557) Detector Active Area TLHC Position1CDouble
(0018,9558) Detector Active Area Orientation1CDouble
(0018,9472) Frame Display Shutter Sequence1Sequence
(0018,9476) X-Ray Geometry Sequence1Sequence
(0018,9477) Irradiation Event Identification Sequence1Sequence
(0018,9541) Detector Position Sequence1Sequence
(0018,9542) X-Ray Acquisition Dose Sequence1Sequence
(0018,9555) X-Ray Grid Sequence1Sequence
(0018,9556) X-Ray Filter Sequence1Sequence
(0020,9071) Frame Anatomy Sequence1Sequence
(0020,9111) Frame Content Sequence1Sequence
(0028,9132) Frame VOI LUT Sequence1Sequence
(0028,9145) Pixel Value Transformation Sequence1Sequence
(0028,9443) Frame Pixel Data Properties Sequence1Sequence
(5200,9230) Per-frame Functional Groups Sequence1CSequence
Multi-frame DimensionUModule - Image
Patient OrientationMModule - Image
SpecimenUModule - Image
SOP CommonMModule - Image
Common Instance ReferenceUModule - Image
Frame ExtractionCModule - Image
Parametric MapCIOD
Wide Field Ophthalmic Photography Stereographic Projection ImageCIOD
Wide Field Ophthalmic Photography 3D Coordinates ImageCIOD
Tractography ResultsCIOD
RT Brachy Application Setup Delivery InstructionCIOD
Planar MPR Volumetric Presentation StateCIOD
Volume Rendering Volumetric Presentation StateCIOD
Content Assessment ResultsCIOD
CT Performed Procedure ProtocolCIOD
CT Defined Procedure ProtocolCIOD
Protocol ApprovalCIOD
Ophthalmic Optical Coherence Tomography En Face ImageCIOD
Ophthalmic Optical Coherence Tomography B-scan Volume AnalysisCIOD
Encapsulated STLCIOD
Encapsulated OBJCIOD
Encapsulated MTLCIOD
RT Physician IntentCIOD
RT Segment AnnotationCIOD
RT Radiation SetCIOD
C-Arm Photon-Electron RadiationCIOD
Tomotherapeutic RadiationCIOD
Robotic-Arm RadiationCIOD
Basic DirectoryCIOD

Built with by Innolitics, a team of medical imaging software developers.

Data synced with official DICOM standard on 12 May 2020. The DICOM Standard is under continuous maintenance, and the current official version is available at DICOM Parts 3, 4, and 6, © NEMA. Please note that the most recent PDF version of the standard is the official reference, and should checked when making technical decisions.

Detector Y Position to Isocenter Attribute

TypeConditionally Required (1C)
Value Multiplicity1
Value RepresentationDouble (FD)

Y position of the Detector Reference Point with respect to the Isocenter (mm).

See C. for further explanation.

Required if Presentation Intent Type (0008.0068) = FOR PROCESSING. May be present otherwise.


Part of the Breast X-Ray Isocenter Reference System Functional Group Macro with usage: M


C. Detector Coordinate System

A detector coordinate system is defined that allows the detector to be either stationary or in motion. For clarity of understanding and interoperability, detector motion terms that may be used during image acquisition are defined, as indicated in Type of Detector Motion (0054,0202):

  • Stationary Detector

  • Rotating Detector

  • Translating Detector

  • Complex Detector

An infinite variation of detector motions is possible through time- and angle- dependent combinations of detector rotation and detector translation.

At any given point in time during image acquisition the detector origin Od may be translated with respect to the system isocenter and/or the detector coordinate system rotated with respect to the isocenter coordinate system. The detector coordinate system (Od, Xd, Yd, Zd) is defined as follows (see Figure C.8.31.6-9):

  • Detector Reference Point Od, is an arbitrary point, defined by the equipment manufacturer, that lies on the axis of rotation of the detector, if any.

  • Xd axis lies in the plane parallel to the detector surface, through the point Od, and perpendicular to the axis of rotation. The +Xd direction is in the same direction as the +X direction when the detector surface is normal to gravity.

  • Yd axis is the axis of rotation of the detector and is parallel to Y. The +Yd direction is in the same direction as the +Y direction when the detector surface is normal to gravity.

  • Zd axis is normal to the detector surface and through the point Od. The +Zd direction is upward, defined by the right-hand rule from +Xd and +Yd.

Figure C.8.31.6-9. Detector Coordinate System

The Detector coordinate system (Od, Xd, Yd, Zd) is characterized with respect to the Isocenter coordinate system (O, X, Y, Z), by two angles describing the tilt of the detector. These angles are relative to the Isocenter reference system, and independent from the patient position on the equipment.

Detector Isocenter Primary Angle (0018,9550) (so-called Ad1) is defined as the angle between the YZ plane and the YZd plane. The angle is positive when the +Xd axis is lower than the -Xd axis with respect to Z, and is 0°when the detector surface is normal to the +Z axis.

Detector Isocenter Secondary Angle (0018,9551) (so-called Ad2) is defined as the angle between the plane XZ and the plane XZd. The angle is positive when the +Yd axis is lower than the -Yd axis with respect to Z. In most cases this angle is 0°, inferring that the XZ plane is parallel to the Xd plane.

Figure C.8.31.6-10. Detector Isocenter Angles

Detector X Position to Isocenter (0018,9552) (so-called DX) is defined as the translation of the Detector Reference Point Od with respect to the Isocenter coordinate system in the X direction. A translation of DX toward Breast Support Right from Detector Od is positive.

Detector Y Position to Isocenter (0018,9553) (so-called DY) is defined as the translation of the Detector Reference Point Od with respect to the Isocenter coordinate system in the Y direction. A translation of DY toward Breast Support Anterior from Detector Od is positive.

Detector Z Position to Isocenter (0018,9554) (so-called DZ) is defined as the translation of the Detector Reference Point Od with respect to the Isocenter coordinate system in the Z direction. A translation of DZ toward Breast Support Head from Detector Od is positive.

Figure C.8.31.6-11. Translation of the Detector Coordinate System

Although not shown in Figure C.8.31.6-11, translation of the detector moves the Detector Origin Od relative to the Isocenter. Thus during translation of the detector, at least one of DX, DY and DZ will change.


A translation of (DX, DY, DZ) = (0, 0, 0) means that the Detector Reference Point Od is at the System Isocenter.

The case where the detector is stationary during image acquisition is a degenerate case, but still defined in the same manner.


  1. An angulation of (Ad1, Ad2) = (0, 0) means that the Detector is not rotated relative to the System Isocenter coordinate system.

  2. A translation of (DX, DY, DZ) = (0, 0, 0) means that the Detector Reference Point Od is at the System Isocenter.