DICOM PS3.17 2026d - Explanatory Information

UUUU.5.2 Examples of Enhanced RDSR

UUUU.5.2.1 Example of Enhanced RDSR for XA

The following is an example RDSR for a diagnostic XA procedure step in neuroradiology. In this example, a single plane (i.e., one X-Ray Source) Interventional X-Ray acquisition system (Irradiating Device) performs an exam (one procedure step) with the following characteristics:

  • Patient position is Head First Supine

  • One focused anti-scatter grid is fixed on the detector housing

  • One pulsed fluoroscopy Irradiation Event lasting 10 seconds and irradiating at 15 pulses per second, with no XA image recorded

  • One rotational acquisition (CBCT) Irradiation Event, rotating at 10 degrees per second and acquiring 30 frames per second over an arc of 180 degrees. An XA multi-frame image is recorded.

  • A dose map image is created at the end of the procedure step

  • The irradiation is administered by the performing physician Dr. Hugh Mann and the operator John Doe

  • The irradiation is authorized by the performing physician Dr. Hugh Mann

The timing and rotation angles for these acquisitions is the following, on the date of 2025-03-25.

Actual Rotation Angle

Irradiation Event #1: Fluoroscopy

Start Time

12 h, 30 min, 00 s, 000 ms

Fixed gantry PA (Posterior Anterior) position

End Time

12 h, 30 min, 10 s, 000 ms

Fixed gantry PA (Posterior Anterior) position

Irradiation Event #2: Rotational Acquisition

Start Time

12 h, 32 min, 00 s, 000 ms

-90 deg

Continuous rotation from -90 deg to +90 deg during 18 seconds, with X-Ray pulses every 33 ms.

The position of the X-Ray Source is encoded in the RDSR every two seconds. The radiation output value is also encoded in the RDSR every two seconds as the accumulated value between the current and previous encoded positions of the X-Ray source.

End Time

12 h, 32 min, 18 s, 000 ms

+90 deg

Timing and rotation angles of the enhanced RDSR example for XA

Figure UUUU.5.2.1-1. Timing and rotation angles of the enhanced RDSR example for XA


The geometry of the equipment for this example is illustrated in Figure UUUU.4.1.1.1-1:

Geometry of the enhanced RDSR example for XA

Figure UUUU.5.2.1-2. Geometry of the enhanced RDSR example for XA


Table UUUU.5.2.1-2 illustrates one possible encoding of this example. Note that other alternative implementation patterns exist.

Table UUUU.5.2.1-2. XA Enhanced RDSR Example

Node

Code Meaning of Concept Name

Code or Example Value

TID

1

X-Ray Radiation Dose Report

TID 10040

1.1

Language of Content Item and Descendants

(en, RFC5646, "English")

TID 1204

1.2

Procedure reported

(113704, DCM, "Projection X-Ray")

TID 10040

1.2.1

Has Intent

(261004008, SCT, "Diagnostic Intent")

TID 10040

<Start Observer Context>

Observer #1: Irradiating device

1.3

Observer Type

(121007, DCM, "Device")

TID 1002

1.4

Device Observer UID

2.999.1.2.3.4

TID 1004

1.5

Device Observer Name

MyStationName

TID 1004

1.6

Device Observer Manufacturer

Manufacturer X

TID 1004

1.7

Device Observer Model Name

Model Y

TID 1004

1.8

Device Observer Serial Number

123456789

TID 1004

<End Observer Context>

1.9

Scope of Accumulation

(113016, DCM, "Performed Procedure Step")

TID 10040

1.10

Accumulated Dose Data

TID 10041

1.10.1

Identification of the X-Ray Source

1

TID 10041

1.10.2

Dose Area Product Total

0.00003410 Gy.m2

TID 10041

1.10.3

Fluoro Dose Area Product Total

0.00000310 Gy.m2

TID 10041

1.10.4

Acquisition Dose Area Product Total

0.00003100 Gy.m2

TID 10041

1.10.5

Total Fluoro Time

10 s

TID 10041

1.10.6

Total Acquisition Time

18 s

TID 10041

1.10.7

Detector Type

(113948, DCM, "Direct Detector")

TID 10041

1.10.8

Total Number of Radiographic Frames

540 no units

TID 10041

1.10.9

Reference Point Dosimetry

TID 10041

1.10.9.1

Reference Point Definition

(113860, DCM, "15cm from Isocenter toward Source")

TID 10041

1.10.9.2

Dose (RP) Total

0.0120600 Gy

TID 10041

1.10.9.3

Fluoro Dose (RP) Total

0.0050000 Gy

TID 10041

1.10.9.4

Acquisition Dose (RP) Total

0.0070600 Gy

TID 10041

1.10.9.5

Distance Source to Reference Point

570.00 mm

TID 10041

1.11

Irradiation Event Summary Data

TID 10042

<Start summary information of Irradiation Event #1 (fluoroscopy acquisition) >

1.11.1

Irradiation Event UID

2.999.2.3.4

TID 10042

1.11.2

DateTime Started

20250325123000.000

TID 10042

1.11.3

DateTime Ended

20250325123010.000

TID 10042

1.11.4

Identification of the X-Ray Source

1

TID 10042

1.11.5

Irradiation Event Label

1

TID 10042

1.11.5.1

Label Type

(113608, DCM, "Acquisition Number")

TID 10042

1.11.6

Irradiation Event Type

(44491008, SCT, "Fluoroscopy")

TID 10042

1.11.7

Dose (RP)

0.0050000 Gy

TID 10042

1.11.8

Number of Pulses

150 no units

TID 10042

1.11.9

Exposure Time

4950 ms

TID 10042

1.11.10

Comment

Fluoro Loop

TID 10042

Start Person Participant within TID 10042

Person #1: Performing physician

1.11.11

Person Name

Mann^Hugh^^Dr

TID 1020

1.11.11.1

Person Role in Procedure

(113851, DCM, "Irradiation Administering")

TID 1020

1.11.11.2

Person Role in Organization

(309343006, SCT, "Physician")

TID 1020

Person #2: Operator

1.11.12

Person Name

Doe^John

TID 1020

1.11.12.1

Person Role in Procedure

(113851, DCM, "Irradiation Administering")

TID 1020

1.11.12.2

Person Role in Organization

(159016003, SCT, "Radiologic Technologist")

TID 1020

<End summary information of Irradiation Event #1 (fluoroscopy acquisition) >

1.12

Irradiation Event Summary Data

TID 10042

<Start summary information of Irradiation Event #2 (Cone Beam CT acquisition) >

1.12.1

Irradiation Event UID

2.999.2.3.5

TID 10042

1.12.2

DateTime Started

20250325123200.000

TID 10042

1.12.3

DateTime Ended

20250325123218.000

TID 10042

1.12.4

Identification of the X-Ray Source

1

TID 10042

1.12.5

Irradiation Event Label

2

TID 10042

1.12.5.1

Label Type

(113608, DCM, "Acquisition Number")

TID 10042

1.12.6

Irradiation Event Type

(113613, DCM, "Rotational Acquisition")

TID 10042

1.12.7

Acquired Image

SOP Class UID: 1.2.840.10008.5.1.4.1.1.12.1.1

SOP Instance UID: 2.999.5

TID 10042

1.12.8

Dose (RP)

0.007060 Gy

TID 10042

1.12.9

Number of Pulses

540 no units

TID 10042

1.12.10

Exposure Time

3000 ms

TID 10042

1.12.11

Comment

CBCT

TID 10042

Start Person Participant within TID 10042

Person #1: Performing physician

1.12.12

Person Name

Mann^Hugh^^Dr

TID 1020

1.12.12.1

Person Role in Procedure

(113851, DCM, "Irradiation Administering")

TID 1020

1.12.12.2

Person Role in Organization

(309343006,SCT, "Physician")

TID 1020

Person #2: Operator

1.12.13

Person Name

Doe^John

TID 1020

1.12.13.1

Person Role in Procedure

(113851, DCM, "Irradiation Administering")

TID 1020

1.12.13.2

Person Role in Organization

(159016003,SCT, "Radiologic Technologist")

TID 1020

<End summary information of Irradiation Event #2 (Cone Beam CT acquisition) >

1.13

Irradiation Details

TID 10043

1.13.1

DateTime Started

20250325123000.000

TID 10043

1.13.2

DateTime Ended

20250325123218.000

TID 10043

1.13.3

Frame of Reference UID

2.999.1.2.3

TID 10043

1.13.4

RDSR Frame of Reference Origin

(130539, DCM, "Isocenter Origin")

TID 10043

1.13.5

Radiation Source Characteristics

TID 10044

1.13.5.1

DateTime Started

20250325123000.000

TID 10044

1.13.5.2

DateTime Ended

20250325123218.000

TID 10044

1.13.5.3

Identification of the X-Ray Source

1

TID 10044

1.13.5.4

Focal Spot Size

0.6 mm

TID 10044

1.13.5.5

Anode Target Material

(26194003, SCT, "Tungsten")

TID 10044

1.13.5.6

Attenuator Characteristics

TID 10044

1.13.5.6.1

X-Ray Filter Material

(66925006, SCT, "Copper")

TID 10044

1.13.5.6.2

X-Ray Filter Thickness

0.1 mm

TID 10044

1.13.6

Radiation Technique

TID 10045

1.13.6.1

DateTime Started

20250325123000.000

TID 10045

1.13.6.2

DateTime Ended

20250325123010.000

TID 10045

1.13.6.3

Identification of the X-Ray Source

1

TID 10045

1.13.6.5

KVP

75.00 kV

TID 10045

1.13.6.6

X-Ray Tube Current

30.0 mA

TID 10045

1.13.6.7

Pulse Rate

15 pulse/s

TID 10045

1.13.6.8

Pulse Width

33 ms

TID 10045

1.13.7

Radiation Technique

TID 10045

1.13.7.1

DateTime Started

20250325123200.000

TID 10045

1.13.7.2

DateTime Ended

20250325123218.000

TID 10045

1.13.7.3

Identification of the X-Ray Source

1

TID 10045

1.13.7.5

KVP

75.00 kV

TID 10045

1.13.7.6

X-Ray Tube Current

25.0 mA

TID 10045

1.13.7.7

Pulse Rate

30 pulse/s

TID 10045

1.13.7.8

Pulse Width

5.555 ms

TID 10045

1.13.8

Filtration

TID 10046

1.13.8.1

DateTime Started

20250325123000.000

TID 10046

1.13.8.2

DateTime Ended

20250325123218.000

TID 10046

1.13.8.3

Identification of the X-Ray Source

1

TID 10046

1.13.8.4

Attenuator Characteristics

TID 10055

1.13.8.4.1

Identification of the Attenuator

1

TID 10055

1.13.8.4.2

Attenuator Category

(113771, DCM, "X-Ray Filters")

TID 10055

1.13.8.4.3

X-Ray Filter Material

(66925006, SCT, "Copper")

TID 10055

1.13.8.4.4

X-Ray Filter Type

(113653, DCM, "Flat filter")

TID 10055

1.13.8.4.5

X-Ray Filter Thickness

0.1 mm

TID 10055

1.13.9

Attenuators

TID 10047

1.13.9.1

DateTime Started

20250325123000.000

TID 10047

1.13.9.2

DateTime Ended

20250325123218.000

TID 10047

1.13.9.3

Attenuator Characteristics

TID 10055

1.13.9.3.1

Identification of the Attenuator

2

TID 10055

1.13.9.3.2

Attenuator Category

(128459, DCM, "Table")

TID 10055

1.13.9.3.3

Equivalent Attenuator Material

(412154003, SCT, "Polycarbonate")

TID 10055

1.13.10

Radiation Output

TID 10048

1.13.10.1

DateTime Started

20250325123000.000

TID 10048

1.13.10.2

DateTime Ended

20250325123010.000

TID 10048

1.13.10.3

Identification of the X-Ray Source

1

TID 10048

1.13.10.4

Air Kerma at Output Measurement Point

5.0 mGy

TID 10048

1.13.11

Radiation Output

TID 10048

1.13.11.1

DateTime Started

20250325123200.000

TID 10048

1.13.11.2

DateTime Ended

20250325123218.000

TID 10048

1.13.11.3

Identification of the X-Ray Source

1

TID 10048

1.13.11.4

Air Kerma at Output Measurement Point

20250325123200.000

0.000 mGy

20250325123202.000

0.820 mGy

20250325123204.000

0.810 mGy

20250325123206.000

0.800 mGy

20250325123208.000

0.750 mGy

20250325123210.000

0.700 mGy

20250325123212.000

0.750 mGy

20250325123214.000

0.800 mGy

20250325123216.000

0.810 mGy

20250325123218.000

0.820 mGy

TID 10048

1.13.12

Radiation Field Area

TID 10049

1.13.12.1

DateTime Started

20250325123000.000

TID 10049

1.13.12.2

DateTime Ended

20250325123218.000

TID 10049

1.13.12.3

Identification of the X-Ray Source

1

TID 10049

1.13.12.4

Radiation Field Outline

SCOORD3D POLYGON

TID 10049

1.13.13

X-Ray Source Reference Coordinate System

TID 10050

1.13.13.1

DateTime Started

20250325123000.000

TID 10050

1.13.13.2

DateTime Ended

20250325123010.000

TID 10050

1.13.13.3

Identification of the X-Ray Source

1

TID 10050

1.13.13.4

Transformation Matrix

1.0

0.0

0.0

0

0.0

1.0

0.0

720

0.0

0.0

1.0

0

0.0

0.0

0.0

1.0

TID 10050

1.13.14

X-Ray Source Reference Coordinate System

TID 10050

1.13.14.1

DateTime Started

20250325123200.000

TID 10050

1.13.14.2

DateTime Ended

20250325123218.000

TID 10050

1.13.14.3

Identification of the X-Ray Source

1

TID 10050

1.13.14.3

Transformation Matrix

1.0

0.0

0.0

0

0.0

1.0

0.0

720

0.0

0.0

1.0

0

0.0

0.0

0.0

1.0

TID 10050

1.13.14.4

Center of Rotation

[0,-720,0]

TID 10050

1.13.14.5

Rotation Plane Normal Point

[0,-720,1]

TID 10050

1.13.14.6

Rotation Angle

20250325123200.000

-90.00 deg

20250325123202.000

-70.00 deg

20250325123204.000

-50.00 deg

20250325123206.000

-30.00 deg

20250325123208.000

-10.00 deg

20250325123210.000

+10.00 deg

20250325123212.000

+30.00 deg

20250325123214.000

+50.00 deg

20250325123216.000

+70.00 deg

20250325123218.000

+90.00 deg

TID 10050

1.13.15

Beam Position

TID 10051

1.13.15.1

DateTime Started

20250325123000.000

TID 10051

1.13.15.2

DateTime Ended

20250325123218.000

TID 10051

1.13.15.3

Identification of the X-Ray Source

1

TID 10051

1.13.15.4

Reference Point Position

[0,-570,0]

TID 10051

1.13.15.5

X-Ray Beam Attenuator Model

TID 10051

1.13.15.5.1

Identification of the Attenuator

1

TID 10051

1.13.15.5.2

X-Ray Attenuator Model Data

2.999.3.4.5

TID 10051

1.13.15.5.3

Transformation Matrix

1.0

0.0

0.0

0.0

0.0

1.0

0.0

-10

0.0

0.0

1.0

0.0

0.0

0.0

0.0

1.0

TID 10051

1.13.16

Attenuator Position

TID 10052

1.13.16.1

DateTime Started

20250325123000.000

TID 10052

1.13.16.2

DateTime Ended

20250325123218.000

TID 10052

1.13.16.3

X-Ray Beam Attenuator Model

TID 10052

1.13.16.3.1

Identification of the Attenuator

2

TID 10052

1.13.16.3.2

X-Ray Attenuator Model Data

2.999.3.4.5.6

TID 10052

1.13.16.3.3

Transformation Matrix

1.0

0.0

0.0

0.0

0.0

1.0

0.0

200

0.0

0.0

1.0

0.0

0.0

0.0

0.0

1.0

TID 10052

1.13.17

Patient Attenuation Characteristics

TID 10053

1.13.17.1

DateTime Started

20250325123000.000

TID 10053

1.13.17.2

DateTime Ended

20250325123218.000

TID 10053

1.13.17.3

Identification of the X-Ray Source

1

TID 10053

1.13.17.4

Patient Equivalent Thickness

300 mm

TID 10053

1.13.18

Procedure Characteristics

TID 10054

1.13.18.1

DateTime Started

20250325123000.000

TID 10054

1.13.18.2

DateTime Ended

20250325123218.000

TID 10054

1.13.18.3

Identification of the X-Ray Source

1

TID 10054

1.13.18.4

Acquisition Protocol

Neuro Protocol

TID 10054

1.13.18.5

Patient Table Relationship

(102540008, SCT, "headfirst")

TID 10054

1.13.18.6

Patient Orientation

(102538003, SCT, " recumbent")

TID 10054

1.13.18.6.1

Patient Orientation Modifier

(40199007, SCT, "supine")

TID 10054

1.13.18.7

Target Region

(12738006, SCT, "Brain")

TID 10054

1.13.18.8

X-Ray Grid

(111642, DCM, "Focused grid")

TID 10054

1.13.18.9

Distance Source to Detector

1200 mm

TID 10054

Start Person Participant within TID 10040

1.14

Person Name

Mann^Hugh^^Dr

TID 1020

1.14.1

Person Role in Procedure

(113850, DCM, "Irradiation Authorizing")

TID 1020

1.14.2

Person ID

5321611

TID 1020

1.14.3

Person ID Issuer

Institution A

TID 1020

1.14.4

Person Role in Organization

(309343006, SCT, "Physician")

TID 1020

End Person Participant

1.15

Source of Dose Information

(113856, DCM, "Automated Data Collection")

TID 10040


DICOM PS3.17 2026d - Explanatory Information