DICOM PS3.3 2022b - Information Object Definitions |
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The CID for RT ROI Identification Code Sequence (3006,0086) shall correspond to the CID defined in CID 9580 “RT Segmentation Property Categories” for each value in Segmented Property Category Code Sequence (0062,0003).
The CID for Therapeutic Role Type Code Sequence (3010,0065) is defined in Section C.36.6.1.1 Therapeutic Role Type Code Sequence.
Table C.8.8.8.3.1-1 defines a mapping between the geometric concepts represented in RT ROI Interpreted Type (3006,00A4) and coded values in Segmented Property Category Code Sequence (0062,0003) in combination with RT ROI Identification Code Sequence (3006,0086).
Table C.8.8.8.3.1-1. RT ROI Interpreted Type Code Mapping
RT ROI Interpreted Type (3006,00A4) |
Segmented Property Category Code Sequence (0062,0003) |
RT ROI Identification Code Sequence (3006,0086) |
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EXTERNAL |
Any value from DCID 9507 “External Body Models” |
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BOLUS |
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MARKER |
Any value from BCID 7112 “Radiotherapy Fiducials” |
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ISOCENTER |
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CONTRAST_AGENT |
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CAVITY |
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BRACHY_CHANNEL |
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BRACHY_ACCESSORY |
No Baseline CID defined |
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BRACHY_SRC_APP |
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BRACHY_CHNL_SHLD |
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SUPPORT |
Any value from DCID 9515 “RT Patient Support Devices” |
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FIXATION |
Any value from DCID 9513 “Fixation Devices” |
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DOSE_REGION |
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DOSE_MEASUREMENT |
Any value from DCID 7027 “Segmented Radiotherapeutic Dose Measurement Devices” |
Table C.8.8.8.3.1-2defines a mapping between therapeutic roles represented in RT ROI Interpreted Type (3006,00A4) and coded values in Therapeutic Role Category Code Sequence (3010,0064) in combination with Therapeutic Role Type Code Sequence (3010,0065).
Table C.8.8.8.3.1-2. Therapeutic Role Code Mapping
RT ROI Interpreted Type (3006,00A4) |
Therapeutic Role Category Code Sequence (3010,0064) |
Therapeutic Role Type Code Sequence (3010,0065) |
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PTV |
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CTV |
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GTV |
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OAR |
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TREATED_VOLUME |
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IRRAD_VOLUME |
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AVOIDANCE |
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REGISTRATION |
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CONTROL |
(130061, DCM, "Radiation Dose Shaping Volume") or (130062, DCM, "Conformality Shell") |
For examples of how the mapping is applied see Section XXXX.1.1 “Coding RT ROI Interpreted Type Information” in PS3.17.
DICOM PS3.3 2022b - Information Object Definitions |
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