DICOM PS3.3 2023b - Information Object Definitions |
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When the value of Enhanced RT Beam Limiting Device Definition Flag (3008,00A3) has the value YES, the following applies to the content of Enhanced RT Beam Limiting Device Sequence (3008,00A1) and Enhanced RT Beam Limiting Opening Sequence (3008,00A2):
For the Beam Modifier Definition Coordinate System used the following applies:
The Base Beam Modifier Definition Coordinate System is the [IEC 61217] GANTRY coordinate system.
The RT Device Distance Reference Location is (130358, DCM, "Nominal Radiation Source Location").
The value of the RT Beam Modifier Definition Distance (300A,0688) equals the value of Source-Axis Distance (300A,00B4).
The value of the Beam Modifier Orientation Angle (300A,0645) is 0 for IEC X direction and 90 for IEC Y direction.
Values of Attributes of the Module RT Tolerance Tables C.8.8.11 apply to the Enhanced RT Beam Limiting Device Openings as follows:
Tolerance Module C.8.8.11 |
Device Type Code Sequence (3010,002E) and Beam Modifier Orientation Angle (300A,0645) |
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(130331, DCM, "Leaf Pair") or (130333, DCM, "Single Leaves") |
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(130331, DCM, "Leaf Pair") or (130333, DCM, "Single Leaves") |
DICOM PS3.3 2023b - Information Object Definitions |
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