DICOM PS3.3 2021d - Information Object Definitions

C.36.2.3 RT Second Generation Positioning Macros (Current)
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#### C.36.2.3 RT Second Generation Positioning Macros

##### C.36.2.3.1 RT Patient Position Scope Macro

The RT Patient Position Scope Macro defines the RT Radiation Set, RT Radiation Instances or the Treatment Position Groups to which a set of positioning parameters apply.

Table C.36.2.3.1-1. RT Patient Position Scope Macro Attributes

Attribute Name | Tag | Type | Attribute Description
--- | --- | --- | ---
Referenced RT Radiation Sequence | (300A,0630) | 1C | A set of RT Radiation Instances for which the positioning parameters apply. Required if Referenced RT Radiation Set Sequence (300A,0702) is absent. One or more Items shall be included in this Sequence.
>Include Table 10-11 “SOP Instance Reference Macro Attributes”.
Referenced RT Radiation Set Sequence | (300A,0702) | 1C | A collection of RT Radiation Sets for which the positioning parameters apply.. Required if Referenced RT Radiation Sequence (300A,0630) is absent. One or more Items shall be included in this Sequence.
>Include Table 10-11 “SOP Instance Reference Macro Attributes”.
>Referenced RT Radiation Sequence | (300A,0630) | 1C | A subset of the SOP Instances referenced in the RT Radiation Set SOP Instance for which the parameters apply. Required if Treatment Position Group Sequence (300A,060A) is absent and the scope is limited to a subset of RT Radiation SOP Instances of the referenced RT Radiation Set. One or more Items shall be included in this Sequence. The maximum number of Items is one less than the number of RT Radiation SOP Instances in the referenced RT Radiation Set SOP Instance.
>>Include Table 10-11 “SOP Instance Reference Macro Attributes”.
>Treatment Position Group Sequence | (300A,060A) | 1C | Treatment Position Groups defining patient positions for which the parameters apply. Required if Referenced RT Radiation Sequence (300A,0630) is absent and Treatment Position Groups to which the positioning parameters apply are defined in the referenced RT Radiation Set. One or more Items shall be included in this Sequence. See C.36.10.1.3.
>>Referenced Treatment Position Group UID | (300A,0785) | 1 | Referenced unique identifier of the Treatment Position Group.

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DICOM PS3.3 2021d - Information Object Definitions