Add Radiation Dose Comment inside sequence Status: Final Text




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CP-469 Date 2005/1/10

Add Radiation Dose Comment inside sequence Status: Final Text



DICOM Correction Item

Correction Number CP-469

Log Summary: Add Radiation Dose Comment inside sequence

Type of Modification

Extension



Name of Standard

PS 3.3 - 2004



Rationale for Correction

The Radiation Dose Module used in MPPS message (PS 3.3 Table C.4-16) defines "Comments on Radiation Dose" outside the Exposure Dose Sequence. Since this sequence shows radiation parameters for different scans, it would be better to have this (or similar) attribute within Exposure Dose Sequence to allow user to label each scan separately, e.g., to show special dose reduction techniques applied.



Sections of documents affected

PS 3.3 Section C.4.16



Correction Wording:

C.4.16 Radiation Dose


Table C.4-16

RADIATION DOSE MODULE ATTRIBUTES

Attribute Name

Tag

Attribute Description









Comments on Radiation Dose

(0040,0310)

User-defined comments on any special conditions related to radiation dose encountered during this Performed Procedure Step.

Exposure Dose Sequence

(0040,030E)

Exposure Dose Sequence will contain Total Number of Exposures (0040, 0301) items plus an item for each fluoroscopy episode not already counted as an exposure.

>Radiation Mode

(0018,115A)

Specifies X-Ray radiation mode. Enumerated Values:

CONTINUOUS



PULSED

>KVp

(0018,0060)

Peak kilo voltage output of the x-ray generator used. An average in the case of fluoroscopy (continuous radiation mode).

>X-ray Tube Current in µA

(0018,8151)

X-ray Tube Current in µA. An average in the case of fluoroscopy (continuous radiation mode).

>Exposure Time

(0018,1150)

Time of x-ray exposure or fluoroscopy in msec.

>Filter Type

(0018,1160)

Type of filter(s) inserted into the X-Ray beam (e.g. wedges). See C.7.10 for Defined Terms.

>Filter Material

(0018,7050)

The X-Ray absorbing material used in the filter. May be multi-valued. See C.7.10 for Defined Terms.

>Comments on Radiation Dose

(0040,0310)

User-defined comments on any special conditions related to radiation dose encountered during during the episode described by this Exposure Dose Sequence Item.






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