DICOM PS3.16 2019b - Content Mapping Resource

TID 10002 Accumulated X-Ray Dose

This general Template provides detailed information on projection X-Ray dose value accumulations over several irradiation events from the same equipment (typically a study or a performed procedure step).

Table TID 10002. Parameters

Parameter Name

Parameter Usage

$Plane

Coded term identifying to which acquisition plane the encoded information belongs.


Type:

Extensible

Order:

Non-Significant

Root:

No

Table TID 10002. Accumulated X-Ray Dose

NL

Rel with Parent

VT

Concept Name

VM

Req Type

Condition

Value Set Constraint

1

CONTAINER

EV (113702, DCM, "Accumulated X-Ray Dose Data")

1

M

2

>

HAS CONCEPT MOD

CODE

EV (113764, DCM, "Acquisition Plane")

1

M

$Plane

3

>

CONTAINS

CONTAINER

EV (122505, DCM, "Calibration")

1-n

MC

IFF Calibration Data is available

4

>>

HAS CONCEPT MOD

CODE

EV (113794, DCM, "Dose Measurement Device")

1

M

DCID 10010 “Dose Measurement Devices”

5

>>

CONTAINS

DATETIME

EV (113723, DCM, "Calibration DateTime")

1

M

6

>>

CONTAINS

NUM

EV (122322, DCM, "Calibration Factor")

1

M

UNITS = EV (1, UCUM, "no units")

7

>>

CONTAINS

NUM

EV (113763, DCM, "Calibration Uncertainty")

1

M

UNITS = EV (%, UCUM, "Percent")

8

>>

CONTAINS

TEXT

EV (113724, DCM, "Calibration Responsible Party")

1

M

9

>>

CONTAINS

TEXT

EV (113720, DCM, "Calibration Protocol")

1

U

10

>

CONTAINS

INCLUDE

DTID 10004 “Accumulated Fluoroscopy and Acquisition Projection X-Ray Dose”

1

MC

IFF TID 10001 Row 4 = (113957, DCM, "Fluoroscopy-Guided Projection Radiography System") or TID 10001 Row 2 = (113704, DCM, "Projection X-Ray") and TID 10001 Row 4 is absent)

11

>

CONTAINS

INCLUDE

DTID 10005 “Accumulated Mammography X-Ray Dose”

1

MC

IFF TID 10001 Row 2 = (71651007, SCT, "Mammography")

12

>

CONTAINS

INCLUDE

DTID 10007 “Accumulated Total Projection Radiography Dose”

1

MC

IFF TID 10001 Row 4 = (113958, DCM, "Integrated Projection Radiography System") or TID (10001) Row 4 = (113957, DCM, "Fluoroscopy-Guided Projection Radiography System") or TID (10001) Row 2 = (113704, DCM, "Projection X-Ray") and TID (10001) Row 4 is absent)

13

>

CONTAINS

INCLUDE

DTID 10006 “Accumulated Cassette-based Projection Radiography Dose”

1

MC

IFF TID 10001 Row 4 = (113959, DCM, "Cassette-based Projection Radiography System")

14

>

CONTAINS

INCLUDE

DTID 1021 “Device Participant”

1

MC

Required if the irradiating device is not the recording device and the dose was accumulated on a single device.

$DeviceProcedureRole = EV (113859, DCM, "Irradiating Device")

15

>

CONTAINS

CODE

EV (128750, DCM, "Equipment Landmark")

1

U

EV (128751, DCM, "Center of Table Head")

16

>>

HAS PROPERTIES

NUM

EV (128752, DCM, "Equipment Landmark X Position")

1

M

UNITS = EV (mm, UCUM, "mm")

17

>>

HAS PROPERTIES

NUM

EV (128753, DCM, "Equipment Landmark Z Position")

1

M

UNITS = EV (mm, UCUM, "mm")

18

>

CONTAINS

CONTAINER

EV (128754, DCM, "Patient Location Fiducial")

1-n

U

19

>>

CONTAINS

INCLUDE

DTID 400 “Reference Location”

1

M

20

>>

HAS PROPERTIES

NUM

EV (128756, DCM, "Equipment Landmark to Patient Fiducial Z Distance")

1

M

UNITS = EV (mm, UCUM, "mm")


Content Item Descriptions

Row 5

Date that the calibration of the equipment's dose indicators was performed

Row 6

Typically a value provided by the medical physicist. The recorded dose or dose area product values in this report can be multiplied by this factor to obtain estimated real-world values.

Note

It is important that this value must not be applied to the measured values before storing them in the report.

Row 7

Value range from 0 to 100 percent. Uncertainty of the 'actual' value expressed as+/- of the mean.

Row 8

Identifies Individual or organization responsible for calibration

Row 9

Describes calibration protocol according to equipment standards or local guidelines.

Row 14

The device that produced the irradiation accumulated in this Template. I.e., the X-Ray source. This is not required to be present if the information is the same as that already recorded in TID 1004 “Device Observer Identifying Attributes” encoded via the inclusion of TID 1002 “Observer Context” in TID 10001 “Projection X-Ray Radiation Dose” Row 5, which in turn may be absent if identical to the content in the Enhanced General Equipment Module, or if more than one device produced the accumulated irradiation.

Rows 16 and 17

These coordinates relate a visible landmark on the X-Ray table to the Table Reference Point that is arbitrarily defined by the manufacturer and not necessarily visible to the operator.

The Equipment Landmark Y Position is not recorded since it is, by definition, in the plane of the table as is the origin of the Table Coordinate System so the value would always be zero.

Row 19

In many instances, the values will be either:

Row 20

This distance (likely recorded by the operator) locates the patient with respect to an X-Ray table landmark. The patient is assumed to be centered in the left-right axis of the X-Ray table.

DICOM PS3.16 2019b - Content Mapping Resource