DICOM PS3.17 2021b - Explanatory Information

UUUU Radiation Dose Structured Reporting (Informative) (Current)
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# UUUU Radiation Dose Structured Reporting (Informative)

This Annex contains information of the use of Radiation Dose Structured Reports, excluding Radiopharmaceutical RDSRs and Patient RDSRs.

## UUUU.1 Cone Beam CT (CBCT) Enhanced RDSR in TID 10040

The following is a simple example of a CBCT acquisition. The device acquires data by rotating a source around a table. There are simple assumptions about the filtration and attenuators present. Many optional entries, particularly legacy dose values, are not included in the interest of making it as simple as possible.

This example could apply to C-arm CBCT acquisitions, dental CBCT, on board imagers in RT, and standard CT scanners.

Table UUUU.1-1. Cone Beam CT (CBCT) Enhanced RDSR

Node | Code Meaning of Concept Name | Code or Example Value | TID
--- | --- | --- | ---
1 | X-Ray Radiation Dose Report |  | Section TID 10040
1.1 | Language of Content Item and Descendants | (en, IETF4646, "English") | Section TID 1204
1.2 | Procedure reported | (702569007, SCT, "Cone Beam Acquisition") | Section TID 10040
1.2.1 | Has Intent | (261004008, SCT, "Diagnostic Intent") | Section TID 10040
1.3 | Observer Type | (121007, DCM, "Device") | Section TID 1002
1.4 | Device Observer UID | 2.999.1.2.3.4 | Section TID 1004
1.5 | Device Observer Manufacturer | Manufacturer X | Section TID 1004
1.6 | Device Observer Model Name | Model Y | Section TID 1004
1.7 | Device Observer Serial Number | 123456789 | Section TID 1004
1.8 | Scope of Accumulation | (113014, DCM, "Study") | Section TID 10040
1.9 | Accumulated Dose Data |  | Section TID 10041
1.9.1 | Identification of the X-Ray Source | 1 | Section TID 10041
1.9.2 | Reference Point Dosimetry |  | Section TID 10041
1.9.2.1 | Reference Point Definition | (113860, DCM, "15cm from Isocenter toward Source") | Section TID 10041
1.9.2.2 | Dose (RP) Total | 85 mGy | Section TID 10041
1.10 | Irradiation Event Summary Data |  | Section TID 10042
1.10.1 | Irradiation Event UID | 2.999.2.3.4 | Section TID 10042
1.10.2 | DateTime Started | 20200101120000 | Section TID 10042
1.10.3 | DateTime Ended | 20200101120030 | Section TID 10042
1.10.4 | Identification of the X-Ray Source | 1 | Section TID 10042
1.10.5 | Irradiation Event Types | (113613, DCM, "Rotational Acquisition") | Section TID 10042
1.11 | Irradiation Details |  | Section TID 10043
1.11.1 | DateTime Started | 20200101120000 | Section TID 10043
1.11.2 | DateTime Ended | 20200101120030 | Section TID 10043
1.11.3 | Frame of Reference UID | 2.999.1.2.3 | Section TID 10043
1.11.4 | RDSR Frame of Reference Origin | (130537, DCM, "Equipment Origin") | Section TID 10043
1.11.5 | RDSR Frame of Reference Description | Equipment origin located on left-most, rear-most corner of gantry support when viewing equipment from the front. Y-axis is anti-gravity direction. Z-axis is along table travel direction into the gantry. X-axis is cross product of y and z axes (+y Ã— +z). | Section TID 10043
1.11.6 | Radiation Source Characteristics |  | Section TID 10044
1.11.6.1 | DateTime Started | 20200101120000 | Section TID 10044
1.11.6.2 | DateTime Ended | 20200101120030 | Section TID 10044
1.11.6.3 | Identification of the X-Ray Source | 1 | Section TID 10044
1.11.6.4 | Focal Spot Size | 1.2 mm | Section TID 10044
1.11.6.5 | Anode Target Material | (26194003, SCT, "Tungsten") | Section TID 10044
1.11.6.6 | Attenuator Characteristics |  | Section TID 10044
1.11.6.6.1 | Equivalent Attenuator Material | (12503006, SCT, "Aluminum") | Section TID 10044
1.11.6.6.2 | Equivalent Attenuator Thickness | 2.5 mm | Section TID 10044
1.11.6.6.2.1 | Reported Value Type | (117362005, SCT, "Nominal") | Section TID 10044
1.11.7 | Radiation Technique |  | Section TID 10045
1.11.7.1 | DateTime Started | 20200101120000 | Section TID 10045
1.11.7.2 | DateTime Ended | 20200101120030 | Section TID 10045
1.11.7.3 | Identification of the X-Ray Source | 1 | Section TID 10045
1.11.7.4 | KVP | 100 kV | Section TID 10045
1.11.7.5 | X-Ray Tube Current |
DateTime Started | X-Ray Tube Current (mA)
--- | ---
20200101120000 | 100.0
20200101120005 | 150.0
20200101120010 | 200.0
20200101120015 | 150.0
20200101120020 | 100.0
20200101120025 | 150.0
| Section TID 10045
1.11.8 | Filtration |  | Section TID 10046
1.11.8.1 | DateTime Started | 20200101120000 | Section TID 10046
1.11.8.2 | DateTime Ended | 20200101120030 | Section TID 10046
1.11.8.3 | Identification of the X-Ray Source | 1 | Section TID 10046
1.11.8.4 | Attenuator Characteristics |  | Section TID 10055
1.11.8.4.1 | Identification of the Attenuator | 1 | Section TID 10055
1.11.8.4.2 | Attenuator Category | (113771, DCM, "X-Ray Filters") | Section TID 10055
1.11.8.4.3 | Filter Material | (66925006, SCT, "Copper") | Section TID 10055
1.11.8.4.4 | Filter Type | (113653, DCM, "Flat Filter") | Section TID 10055
1.11.8.4.5 | X-Ray Filter Thickness | 0.3 mm | Section TID 10055
1.11.9 | Attenuators |  | Section TID 10047
1.11.9.1 | DateTime Started | 20200101120000 | TID eRSDRT07
1.11.9.2 | DateTime Ended | 20200101120030 | TID eRSDRT07
1.11.9.4 | Attenuator Characteristics |  | Section TID 10055
1.11.9.4.1 | Identification of the Attenuator | 2 | Section TID 10055
1.11.9.4.2 | Attenuator Category | (128459, DCM, "Table") | Section TID 10055
1.11.9.4.3 | Filter Material | (256501007, SCT, "Carbon Fiber") | Section TID 10055
1.11.9.4.4 | Filter Type | (113650, DCM, "Strip Filter") | Section TID 10055
1.11.9.4.5 | X-Ray Filter Thickness | 30 mm | Section TID 10055
1.11.10 | Radiation Output |  | Section TID 10048
1.11.10.1 | DateTime Started | 20200101120000 | Section TID 10048
1.11.10.2 | DateTime Ended | 20200101120030 | Section TID 10048
1.11.10.3 | Identification of the X-Ray Source | 1 | Section TID 10048
1.11.10.4 | Air Kerma at Output Measurement Point |
DateTime Ended | Air Kerma at Output Measurement Point (mGy)
--- | ---
20200101120005 | 10.0
20200101120010 | 15.0
20200101120015 | 20.0
20200101120020 | 15.0
20200101120025 | 10.0
20200101120030 | 15.0
| Section TID 10048
1.11.11 | Radiation Field Area |  | Section TID 10049
1.11.11.1 | DateTime Started | 20200101120000 | Section TID 10049
1.11.11.2 | DateTime Ended | 20200101120030 | Section TID 10049
1.11.11.3 | Identification of the X-Ray Source | 1 | Section TID 10049
1.11.11.4 | Radiation Field Outline | SCOORD3D POLYGON | Section TID 10049
1.11.12 | X-Ray Source Reference Coordinate System |  | Section TID 10050
1.11.12.1 | DateTime Started | 20200101120000 | Section TID 10050
1.11.12.2 | DateTime Ended | 20200101120030 | Section TID 10050
1.11.12.3 | Identification of the X-Ray Source | 1 | Section TID 10050
1.11.12.4 | Transformation Matrix |
1.0 | 0.0 | 0.0 | -40.0
0.0 | 1.0 | 0.0 | 20.0
0.0 | 0.0 | 1.0 | -50.0
0.0 | 0.0 | 0.0 | 1.0
| Section TID 10050
1.11.12.5 | Center of Rotation | SCOORD3D POINT | Section TID 10050
1.11.12.6 | Rotation Plane Normal Point | SCOORD3D POINT | Section TID 10050
1.11.12.7 | Rotation Angle |
DateTime Started | Rotation Angle (deg)
--- | ---
20200101120005 | 40.0
20200101120010 | 80.0
20200101120015 | 120.0
20200101120020 | 160.0
20200101120025 | 200.0
20200101120030 | 240.0
| Section TID 10050
1.11.13 | Beam Position |  | Section TID 10051
1.11.13.1 | DateTime Started | 20200101120000 | Section TID 10051
1.11.13.2 | DateTime Ended | 20200101120030 | Section TID 10051
1.11.13.3 | Identification of the X-Ray Source | 1 | Section TID 10051
1.11.13.4 | Output Measurement Point Position | SCOORD3D POINT | Section TID 10051
1.11.13.5 | Reference Point Position | SCOORD3D POINT | Section TID 10051
1.11.13.6 | X-Ray Beam Attenuator Model |  | Section TID 10051
1.11.13.6.1 | Identification of the Attenuator | 1 | Section TID 10051
1.11.13.6.2 | X-Ray Attenuator Model Data | 2.999.3.4.5 | Section TID 10051
1.11.13.6.6 | Transformation Matrix |
1.0 | 0.0 | 0.0 | 0.0
0.0 | 1.0 | 0.0 | 5.0
0.0 | 0.0 | 1.0 | 0.0
0.0 | 0.0 | 0.0 | 1.0
| Section TID 10051
1.11.14 | Attenuator Position |  | Section TID 10052
1.11.14.1 | DateTime Started | 20200101120000 | Section TID 10052
1.11.14.2 | DateTime Ended | 20200101120030 | Section TID 10052
1.11.14.3 | X-Ray Beam Attenuator Model |  |
1.11.14.3.1 | Identification of the Attenuator | 2 | Section TID 10052
1.11.14.3.2 | X-Ray Attenuator Model Data | 2.999.4.5.6 | Section TID 10052
1.11.14.3.3 | Transformation Matrix |
1.0 | 0.0 | 0.0 | -40.0
0.0 | 1.0 | 0.0 | 60.0
0.0 | 0.0 | 1.0 | -45.0
0.0 | 0.0 | 0.0 | 1.0
| Section TID 10052
1.11.15 | Procedure Characteristics |  | Section TID 10054
1.11.15.1 | DateTime Started | 20200101120000 | Section TID 10054
1.11.15.2 | DateTime Ended | 20200101120030 | Section TID 10054
1.11.15.3 | Identification of the X-Ray Source | 1 | Section TID 10054
1.11.15.4 | Acquisition Protocol | CBCT Acquisition | Section TID 10054
1.11.15.5 | Patient Table Relationship | (102540008, SCT, "headfirst") | Section TID 10054
1.11.15.6 | Patient Orientation | (102538003, SCT, "recumbent") | Section TID 10054
1.11.15.6.1 | Patient Orientation Modifier | (40199007, SCT, "supine") | Section TID 10054
1.11.15.7 | Distance Source to Detector | 1200 mm | Section TID 10054
1.12 | Source of Dose Information | (113856, DCM, "Automated Data Collection") | Section TID 10040

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DICOM PS3.17 2021b - Explanatory Information