TID 10003 Irradiation Event X-Ray Data

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

An irradiation event is the occurrence of radiation being applied to a patient in single continuous time-frame between the start (release) and the stop (cease) of the irradiation. 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.

TID 10003 IRRADIATION EVENT X-RAY DATA Type: Extensible Order: Significant

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 DATETIME DT (111526, DCM, “DateTime Started”) 1 M
4 > CONTAINS CODE EV (113721, DCM, “Irradiation Event Type”) 1 M DCID (10002) Irradiation Event Types
5 > CONTAINS TEXT EV (125203, DCM, “Acquisition Protocol”) 1 U
6 > CONTAINS CODE EV (T-D0005, SRT, “Anatomical structure”) 1 U
7 >> HAS CONCEPT MOD CODE EV (G-C171, SRT, “Laterality") 1 UC If anatomy is bi-lateral DCID (244) Laterality
8 > CONTAINS TEXT EV (113780, DCM, “Reference Point Definition”) 1 MC IF Row 13 or Row 14 is present and Row 9 is not present
9 > CONTAINS CODE EV (113780, DCM, “Reference Point Definition”) 1 MC IF Row 13 or Row 14 is present and Row 8 is not present DCID (10025) Radiation Dose Reference Points
10 > CONTAINS UIDREF EV (113769, DCM, “Irradiation Event UID”) 1 M
11 > 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")
12 > CONTAINS NUM EV (111631, DCM, “Average Glandular Dose”) 1 MC IFF TID (10001) Row 2 = (P5-40010, SRT, “Mammography”) Units = EV (dGy, UCUM, “dGy”
13 > CONTAINS NUM EV (113738, DCM, “Dose (RP)”) 1 MC IFF TID (10001) Row 2 = (113704, DCM, “Projection X-Ray”) AND any of the values of TID (10001) Row 14 are not (113858, DCM, “MPPS Content”) Units = EV (Gy, UCUM, “Gy”)
14 > CONTAINS NUM EV (111636, DCM, “Entrance Exposure at RP”) 1 MC IFF TID (10001) Row 2 = (P5-40010, SRT, “Mammography”) Units = EV (mGy, UCUM, “mGy”)
15 > CONTAINS NUM EV (112011, DCM, “Positioner Primary Angle”) 1 UC XOR Row 19 Units = EV (deg, UCUM, “º”)
16 > CONTAINS NUM EV ( 112012, DCM, “Positioner Secondary Angle”) 1 UC XOR Row 19 Units = EV (deg, UCUM, “º”)
17 > CONTAINS NUM EV (113739, DCM, “Positioner Primary End Angle” 1 UC IFF Row 4 value = (113613, DCM, “Rotational Acquisition”) Units = EV (deg, UCUM, “º”)
18 > CONTAINS NUM EV (113740, DCM, “Positioner Secondary End Angle” 1 UC IFF Row 4 value = (113613, DCM, “Rotational Acquisition”) Units = EV (deg, UCUM, “º”)
19 > CONTAINS NUM EV (113770, DCM, “Column Angulation”) 1 UC XOR Rows 15,16 Units = EV (deg, UCUM, “º”)
20 > CONTAINS NUM EV (113790, DCM, “Collimated Field Area” 1 U Units = EV (m2, UCUM, “m^2”)
21 > CONTAINS CONTAINER EV (113771, DCM, “X-Ray Filters”) 1-n U
22 >> CONTAINS CODE EV (113772, DCM, “X-Ray Filter Type”) 1 U DCID (10007) X-Ray Filter Types
23 >> CONTAINS CODE EV (113757, DCM, “X-Ray Filter Material”) 1 U DCID (10006) X-Ray Filter Materials
24 >> CONTAINS NUM EV (113758, DCM, “X-Ray Filter Thickness Minimum”) 1 U Units = EV (mm, UCUM, “mm”)
25 >> CONTAINS NUM EV (113773, DCM, “X-Ray Filter Thickness Maximum”) 1 U Units = EV (mm, UCUM, “mm”)
26 > CONTAINS CODE EV (113732, DCM, “Fluoro Mode”) 1 UC IFF Row 4 value = (P5-06000, SRT, “Fluoroscopy”) DCID (10004) Fluoro Modes
27 > CONTAINS NUM EV (113791, DCM, “Pulse Rate”) 1 MC IFF Row 26 value = (113631, DCM, “Pulsed”) Units = EV ({pulse}/s, UCUM, “pulse/s”)
28 > CONTAINS NUM EV (113768, DCM, “Number of Pulses”) 1 MC IFF Row 26 value = (113631, DCM, “Pulsed”) Units = EV (1, UCUM, “no units”)
29 >> HAS CONCEPT MOD CODE EV (121401, DCM, “Derivation”) 1 MC IFF count of pulses in Row 28 is estimated EV (R-10260, SRT, “Estimated”)
30 > CONTAINS NUM EV (113733, DCM, “KVP”) 1-n U Units = EV (kV, UCUM, “kV”)
31 > CONTAINS NUM EV (113734, DCM, “X-Ray Tube Current”) 1-n U Units = EV (mA, UCUM, “mA”)
32 > CONTAINS NUM EV (113735, DCM, “Exposure Time”) 1 U Units = EV (ms, UCUM, “ms”)
33 > CONTAINS NUM EV (113793, DCM, “Pulse Width”) 1-n U Units = EV (ms, UCUM, “ms”)
34 > CONTAINS NUM EV (113736, DCM, “Exposure”) 1-n U Units = EV (uAs, UCUM, “uAs”)
35 > CONTAINS NUM EV (113766, DCM, “Focal Spot Size”) 1 U Units = EV (mm, UCUM, “mm”)
36 > CONTAINS NUM EV (113742, DCM, “Irradiation Duration”) 1 U Units = EV (s, UCUM, “s”)
37 > CONTAINS NUM EV (113767, DCM, “Average X-Ray Tube Current”) 1 U Units = EV (mA, UCUM, “mA”)
38 > CONTAINS CODE EV (113745, DCM, “Patient Table Relationship”) 1 U DCID (21) Patient Gantry Relationship
39 > CONTAINS CODE EV (113743, DCM, “Patient Orientation”) 1 U DCID (19) Patient Orientation
40 >> HAS CONCEPT MOD CODE EV (113744, DCM, “Patient Orientation Modifier”) 1 M DCID (20) Patient Orientation Modifier
41 > CONTAINS NUM DCID (10008) Dose Related Distance Measurements 1-n U Units = EV (mm, UCUM, “mm”)
42 > CONTAINS NUM EV (113754, DCM, “Table Head Tilt Angle”) 1 U Units = EV (deg, UCUM, “º”)
43 > CONTAINS NUM EV (113755, DCM, “Table Horizontal Rotation Angle”) 1 U Units = EV (deg, UCUM, “º”)
44 > CONTAINS NUM EV (113756, DCM, “Table Cradle Tilt Angle”) 1 U Units = EV (deg, UCUM, “º”)
45 > CONTAINS CODE EV (123014 , DCM, (”Target Region”) 1 M DCID (4031) Common Anatomic Regions
46 > CONTAINS CODE EV (111632, DCM, “Anode Target Material” 1 U DCID (10016) Anode Target Material
47 > CONTAINS NUM EV (111633, DCM, “Compression Thickness”) 1 U Units = (mm, UCUM, “mm”)
48 > CONTAINS NUM EV (111634, DCM, “Half Value Layer”) 1 U Units = (mm, UCUM, “mm”)
49 > CONTAINS CODE EV (111635,DCM, “X-Ray Grid”) 1-n U DCID (10017) X-Ray Grid
50 > CONTAINS INCLUDE DTID (4007) Mammography CAD Breast Composition 1 U
51 > CONTAINS TEXT EV (121106, DCM, “Comment”) 1 U
52 > CONTAINS INCLUDE DTID (1020) Person Participant 1-n U $PersonProcedureRole = EV (113851, DCM, “Irradiation Administering”)
53 > CONTAINS INCLUDE DTID (1021) Device Participant 1 MC Required if the irradiating device is not the recording device. $DeviceProcedureRole = EV (113859, DCM, “Irradiating Device”)
54 > CONTAINS IMAGE EV (113795, DCM, “Acquired Image”) 1-n MC IFF Image Object is created for this irradiation event
55 > CONTAINS NUM EV (113845, DCM, “Exposure Index”) 1 U Units = (1,UCUM, “no units”)
56 > CONTAINS NUM EV (113846, DCM, “Target Exposure Index”) 1 U Units = (1,UCUM, “no units”)
57 > CONTAINS NUM EV (113847, DCM, “Deviation Index”) 1 U Units = (1,UCUM,“no units”)

Content Item Descriptions

Row 3 Provide DateTime the application of X-Ray started. 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 8 A text definition of the Reference Point (RP) used for RP-related dose values.
Row 9 A coded definition of the Reference Point (RP) used for RP-related dose values
Row 10 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.
Row 13 Dose applied by this irradiation event, relative to defined reference point.
Row 15 Angle in patient’s “equatorial” plane (LAO to RAO). For dynamically changing angle during the event, the start value shall be provided. Equivalent to (0018,1510) in an image instance.
Row 16 Angle in patient’s “sagittal” plane (CRAN to CAUD). For dynamically changing angle during the event, the start value shall be provided. Equivalent to (0018,1511) in an image instance.
Row 17 In case of motion during irradiation event, Positioner Primary ending angle
Row 18 In case of motion during irradiation event, Positioner Secondary ending angle
Row 19 Column device Angle in equipment based coordinates
Row 20 Collimated area at the receptor plane.
Row 21 If one or more Filter(s) were applied during this irradiation event
Row 28 If a precise count of pulses is not available, an estimated number shall be provided, and the Row 29 Concept Modifier shall indicate “Estimated”
Row 30 KVP value as measured/recorded by system, either as a single mean value, or as multiple values. If multiple values are provided, their number shall match the value in Row 28 “Number of Pulses”.
Row31 Tube current as measured/recorded by system, either as a single mean value, or as multiple values. If multiple values are provided, their number shall match the value in Row 28 “Number of Pulses”.
Row 32 Exposure time as measured/recorded by the system.
Row 33 Pulse width as measured/recorded by the system, either as a single total value, or as multiple values. If multiple values are provided, their number shall match the value in Row 28 “Number of Pulses”.
Row 34 Exposure as measured/recorded by system, either as a single total value, or as multiple values. If multiple values are provided, their number shall match the value in Row 28 “Number of Pulses”. The Exposure will be affected by the shape of the pulse and other factors, and may not be a simple multiplication of tube current and exposure time.
Row 45 The target region is the anatomy exposed.
Row 52 People responsible for the administration of the radiation reported in the irradiation event. May include values which 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).
Row 53 The device which produced the irradiation in this Irradiation Event. I.e. the X-Ray source. This is not required to be present if the information is the same as that already recorded in the Device Observer Context (TID 1004) encoded via the inclusion of Observer Context (TID 1002) in TID 10001 Row 4, which in turn may be absent if identical to the content in the Enhanced General Equipment Module.
Row 54 Reference to Image instances created during this event, if any. The UID reference(s) provided here shall be the values at the time the images were initially created. (Note that image UIDs may be changed as the images are managed over a long term.)