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(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
(5200,9230) Per-Frame Functional Groups Sequence1CSequence
(0008,1140) Referenced Image Sequence2Sequence
(0008,9124) Derivation Image Sequence2Sequence
(0018,9118) Cardiac Synchronization Sequence1Sequence
(0018,9341) Contrast/Bolus Usage Sequence1Sequence
(0018,9405) Positioner Position Sequence1Sequence
(0018,1510) Positioner Primary Angle1CDecimal String
(0018,1511) Positioner Secondary Angle1CDecimal String
(0018,9447) Column Angulation (Patient)1CSingle
(0018,9406) Table 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
(0018,9434) Exposure Control Sensing Regions Sequence1Sequence
(0018,9451) Frame Detector Parameters Sequence1Sequence
(0018,9455) Calibration Sequence1Sequence
(0018,9456) Object Thickness Sequence1Sequence
(0018,9472) Frame Display Shutter Sequence1Sequence
(0018,9476) X-Ray Geometry Sequence1Sequence
(0018,9477) Irradiation Event Identification Sequence1Sequence
(0020,9071) Frame Anatomy Sequence1Sequence
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(0020,9253) Respiratory Synchronization Sequence1Sequence
(0020,9450) Patient Orientation in Frame Sequence1Sequence
(0028,9132) Frame VOI LUT Sequence1Sequence
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(0028,9422) Pixel Intensity Relationship LUT Sequence1Sequence
(0028,9443) Frame Pixel Data Properties Sequence1Sequence
(7FE0,0003) Encapsulated Pixel Data Value Total Length3UV
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Built with by Innolitics, a team of medical imaging software developers.

Data synced with official DICOM standard on 18 April 2024. The DICOM Standard is under continuous maintenance, and the current official version is available at http://www.dicomstandard.org/current/. 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.

Positioner Primary Angle Attribute

Tag(0018,1510)
TypeConditionally Required (1C)
KeywordPositionerPrimaryAngle
Value Multiplicity1
Value RepresentationDecimal String (DS)
Example Values
  • 0
  • -90
  • -1

Position of the X-Ray Image Intensifier about the patient from the RAO to LAO direction where movement from RAO to vertical is positive.

See Section C.8.7.5.1.2.

Required if Positioner Type (0018,1508) equals CARM.

Note

Part of the X-Ray Positioner Functional Group Macro with usage: U

Section C.8.7.5.1.2

C.8.7.5.1.2 Positioner Primary and Secondary Angles

The definitions of Positioner Angles shall be with respect to the patient as illustrated in Figure C.8-11 and Figure C.8-12. Zero degree is referenced to the origin perpendicular to the patient's chest. The Positioner Primary Angle definition is like longitude (in the equatorial plan); the Positioner Secondary Angle definition is like latitude (in the sagittal plane). The Positioner Angle Attributes apply to the first frame of a multi-frame image. The valid range of Primary Positioner Angle is -180 to +180 degrees and the Secondary Positioner Angle range is -90 to + 90 degrees.

The Patient Plane is defined by the isocenter of the imaging device and slices through the patient such that it is perpendicular to the sagittal plane of the body. The Primary Axis of rotation is defined at the intersection of the Patient Plane and of the Sagittal Plane. The Positioner Primary Angle is defined in the transaxial plane at the isocenter with zero degrees in the direction perpendicular to the patient's chest and + 90 degrees at the patient left hand side (LAO) and -90 at the patient right hand side (RAO). The valid range of Primary Positioner Angle is -180 to +180 degrees.

The Secondary Axis is in the Patient Plane and is perpendicular to the Primary Axis at the isocenter. The Positioner Secondary Angle is defined in the Sagittal Plane at the isocenter with zero degrees in the direction perpendicular to the patient's chest. +90 degrees corresponds to the cranial direction. The Secondary Positioner Angle range is -90 to + 90 degrees.

At a 0 angle for both Primary Angle (0018,1510) and Secondary Angle (0018,1511), the patient faces the Image Intensifier or digital detector.

The Positioner Primary Angle (0018,1510) and Secondary Angle (0018,1511) apply to the first frame of a multi-frame image.

Figure C.8-11. Positioner Primary Angle


Figure C.8-12. Positioner Secondary Angle