DICOM PS3.16 2021d - Content Mapping Resource

TID 10003 Irradiation Event X-Ray Data (Current)
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### TID 10003 Irradiation Event X-Ray Data

This Template conveys the dose and equipment parameters of a single irradiation event.

The Template and requirements are structured to consider equipment with various levels of integration between the components (X-Ray Source, Plate or Detector, and Gantry/Table) of the equipment.

An irradiation event is the loading of X-Ray equipment caused by a single continuous actuation of the equipment's irradiation switch, from the start of the loading time of the first pulse until the loading time trailing edge of the final pulse. The irradiation event is the "smallest" information entity to be recorded in the realm of Radiation Dose reporting. Individual Irradiation Events are described by a set of accompanying physical parameters that are sufficient to understand the "quality" of irradiation that is being applied. This set of parameters may be different for the various types of equipment that are able to create irradiation events. Any automatic on-off switching of the irradiation source during the event shall not be treated as separate events, rather the event includes the time between start and stop of irradiation as triggered by the user. E.g., a pulsed fluoro X-Ray acquisition shall be treated as a single irradiation event.

As described in Section 6.2.4, measurement concepts may be post-coordinated, even though not explicitly specified in the Template. In particular, post-coordination using modifier concept (121401, DCM, "Derivation"), with modifier values drawn from CID 10009 “Measured/Calculated” would be appropriate to encode indications of measured or of calculated values.

Type:

  Extensible

Order:

  Non-Significant

Root:

  No

Table TID 10003. Irradiation Event X-Ray Data

| NL | Rel with Parent | VT | Concept Name | VM | Req Type | Condition | Value Set Constraint
--- | --- | --- | --- | --- | --- | --- | --- | ---
1 |  |  | CONTAINER | EV (113706, DCM, "Irradiation Event X-Ray Data") | 1 | M |  |
2 | > | HAS CONCEPT MOD | CODE | EV (113764, DCM, "Acquisition Plane") | 1 | M |  | DCID 10003 “Equipment Plane Identification”
3 | > | CONTAINS | UIDREF | EV (113769, DCM, "Irradiation Event UID") | 1 | M |  |
4 | > | CONTAINS | TEXT | EV (113605, DCM, "Irradiation Event Label") | 1 | U |  |
5 | >> | HAS CONCEPT MOD | CODE | EV (113606, DCM, "Label Type") | 1 | MC | IF the value of Row 4 is the value of an Attribute in the images. | DCID 10022 “Label Types”
5a | > | CONTAINS | CODE | EV (128551, DCM, "Is Repeated Acquisition") | 1 | U |  | DCID 231 “Yes-No Only”
5b | >> | HAS CONCEPT MOD | CODE | EV (128552, DCM, "Reason for Repeating Acquisition") | 1 | MC | IFF Row 5a = (373066001, SCT, "Yes") | DCID 10034 “Reason for Repeating Acquisition” DCID 7011 “Rejected for Quality Reasons”
5c | >> | HAS PROPERTIES | UIDREF | EV (113769, DCM, "Irradiation Event UID") | 1 | UC | IFF Row 5a = (373066001, SCT, "Yes") |
6 | > | CONTAINS | DATETIME | DT (111526, DCM, "DateTime Started") | 1 | M |  |
7 | > | CONTAINS | CODE | EV (113721, DCM, "Irradiation Event Type") | 1 | M |  | DCID 10002 “Irradiation Event Types”
8 | > | CONTAINS | TEXT | EV (125203, DCM, "Acquisition Protocol") | 1 | U |  |
11 | > | CONTAINS | CODE | EV (111031, DCM, "Image View") | 1 | U |  | DCID 4010 “DX View” DCID 4014 “View for Mammography”
12 | >> | HAS CONCEPT MOD | CODE | EV (111032, DCM, "Image View Modifier") | 1-n | U |  | DCID 4011 “DX View Modifier” DCID 4015 “View Modifier for Mammography”
13 | >> | CONTAINS | CODE | EV (113946, DCM, "Projection Eponymous Name") | 1 | U |  | DCID 4012 “Projection Eponymous Name”
14 | > | CONTAINS | CODE | EV (113745, DCM, "Patient Table Relationship") | 1 | U |  | DCID 21 “Patient Equipment Relationship”
15 | > | CONTAINS | CODE | EV (113743, DCM, "Patient Orientation") | 1 | U |  | DCID 19 “Patient Orientation”
16 | >> | HAS CONCEPT MOD | CODE | EV (113744, DCM, "Patient Orientation Modifier") | 1 | M |  | DCID 20 “Patient Orientation Modifier”
17 | > | CONTAINS | CODE | EV (123014, DCM, "Target Region") | 1 | M |  | DCID 4031 “Common Anatomic Regions”
17b | >> | HAS CONCEPT MOD | CODE | EV (272741003, SCT, "Laterality") | 1 | UC | If anatomy is bi-lateral | DCID 244 “Laterality”
18 | > | CONTAINS | NUM | EV (122130, DCM, "Dose Area Product") | 1 | MC | IFF TID 10001 Row 2 = (113704, DCM, "Projection X-Ray") | UNITS = EV (Gy.m2, UCUM, "Gy.m2")
19 | > | CONTAINS | NUM | EV (111634, DCM, "Half Value Layer") | 1 | U |  | UNITS = EV (mm, UCUM, "mm")
20 | > | CONTAINS | NUM | EV (111638, DCM, "Patient Equivalent Thickness") | 1 | U |  | UNITS = EV (mm, UCUM, "mm")
21 | > | CONTAINS | NUM | EV (111636, DCM, "Entrance Exposure at RP") | 1 | MC | IF TID 10001 Row 2 = (71651007, SCT, "Mammography") and (TID (10001) Row 9 is absent or value is (373066001, SCT, "Yes")) and (TID (10001) Row 10 is absent or value is (373066001, SCT, "Yes")) | UNITS = EV (mGy, UCUM, "mGy")
22 | > | CONTAINS | TEXT | EV (113780, DCM, "Reference Point Definition") | 1 | MC | IF Row 21 is present and Row 23 is not present |
23 | > | CONTAINS | CODE | EV (113780, DCM, "Reference Point Definition") | 1 | MC | IF Row 21 is present and Row 22 is not present | DCID 10025 “Radiation Dose Reference Points”
24 | > | CONTAINS | INCLUDE | DTID 4007 “Mammography CAD Breast Composition” | 1 | U |  |
25 | > | CONTAINS | TEXT | EV (121106, DCM, "Comment") | 1 | U |  |
26 | > | CONTAINS | INCLUDE | DTID 1020 “Person Participant” | 1-n | U |  | $PersonProcedureRole = EV (113851, DCM, "Irradiation Administering")
27 | > | CONTAINS | INCLUDE | DTID 10003A “Irradiation Event X-Ray Detector Data” | 1 | MC | IFF TID 10001 Row 8 is absent or has a value of (373066001, SCT, "Yes") |
28 | > | CONTAINS | INCLUDE | DTID 10003B “Irradiation Event X-Ray Source Data” | 1 | MC | IFF TID 10001 Row 9 is absent or has a value of (373066001, SCT, "Yes") |
29 | > | CONTAINS | INCLUDE | DTID 10003C “Irradiation Event X-Ray Mechanical Data” | 1 | MC | IFF TID 10001 Row 10 is absent or has a value of (373066001, SCT, "Yes") |

Content Item Descriptions

Row 3 | If the image generating entity does not assign a DICOM UID to the irradiation event (e.g., for non-digital imaging equipment), the application generating this report shall assign a UID. In the case of non-integrated cassette-based equipment, a standalone Detector will generate UIDs for the Events it observes. If the X-Ray Source component of the equipment also reports information, it too will generate UIDs for the Events it creates. A downstream system (e.g., a workstation or the Dose Information Reporter itself) may combine the two reports into a composite report, and match up the events based on details such as the time information, and use the UIDs of the X-Ray Source.
Rows 5a, 5b, 5c | If an acquisition is a repeat because an earlier acquisition was unsatisfactory, this may be recorded along with a coded reason and the earlier acquisition's irradiation event UID. This is intended to help with subsequent analysis by providing a priori information about why the exam might be flagged as an outlier with higher dose exposure values than usual for the type of study.
Row 6 | The DateTime that the application of X-Rays started for this irradiation event. This shall correspond to the start of the first irradiation in the Irradiation Event, which defines the starting point for the calculation of Row 36 "Irradiation Duration".
Row 17 | The target region is the anatomy exposed.
Row 17b | Previously, a CODE content item (91723000, SCT, "Anatomical structure") along with CODE concept modifier (272741003, SCT, "Laterality") were used to identify bilateral anatomy. This duplicated the function of Row 17 and was retired. See PS3.16 2017c.
Row 21 | A text definition of the Reference Point (RP) used for RP-related dose values.
Row 22 | A coded definition of the Reference Point (RP) used for RP-related dose values
Row 26 | People responsible for the administration of the radiation reported in the irradiation event. May include values that would appear in Performing Physicians' Name (0008,1050), Performing Physician Identification Sequence (0008,1052), Operators' Name (0008,1070) and/or Operator Identification Sequence (0008,1072).

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