DICOM PS3.3 2021c - Information Object Definitions

C.8.19.6.10 X-Ray Positioner Macro (Current)
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##### C.8.19.6.10 X-Ray Positioner Macro

Table C.8.19.6-10 specifies the Attributes of the X-Ray Positioner Functional Group Macro. If included into the Shared Functional Groups Sequence (5200,9229) no DYNAMIC motion was performed during acquisition. If included in the Per-frame Functional Groups Sequence (5200,9230) the indication of a DYNAMIC motion is given.

Table C.8.19.6-10. X-Ray Positioner Macro Attributes

Attribute Name | Tag | Type | Attribute Description
--- | --- | --- | ---
Positioner Position Sequence | (0018,9405) | 1 | A Sequence that describes the geometrical position of the positioner. Only a single Item shall be included in this Sequence.
>Positioner Primary Angle | (0018,1510) | 1C | 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.
>Positioner Secondary Angle | (0018,1511) | 1C | Position of the X-Ray Image Intensifier about the patient from the CAU to CRA direction where movement from CAU to vertical is positive. See Section C.8.7.5.1.2 Required if Positioner Type (0018,1508) equals CARM.
>Column Angulation (Patient) | (0018,9447) | 1C | Angle of the X-Ray beam in degree relative to an orthogonal axis to the detector plane. Positive values indicate that the tilt is towards the head of the patient. ### Note The detector plane is assumed to be parallel to the table plane This Attribute differentiates form the Attribute Column Angulation (0018,1450) by using the Patient-Based Coordinate System instead of the Equipment-Based Coordinate System. Required if Positioner Type (0018,1508) equals COLUMN.

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DICOM PS3.3 2021c - Information Object Definitions