DICOM PS3.3 2024c - Information Object Definitions
C.36.2.4.8 RT Image Frame General Content Macro

The RT Image Frame General Content Macro contains information about the geometric and dosimetric context of a frame reconstructed for use in or acquired during Radiotherapy treatment sessions.

Table C.36.2.4.8-1. RT Image Frame General Content Macro Attributes

Attribute Name

Tag

Type

Attribute Description

RT Image Frame General Content Sequence

(3002,0102)

1

Identifies RT-specific characteristics of the frame.

Only a single Item shall be included in this Sequence.

>Frame Type

(0008,9007)

1

Type of Frame. A multi-valued Attribute analogous to Image Type (0008,0008).

See Section C.36.2.4.8.1.1 and Section C.36.27.1.1.

>Referenced Treatment Position Index

(300A,060B)

1C

The value of Treatment Position Index (300A,0606) from the Treatment Position Sequence (300A,063F) within this IOD describing the position when the frame was taken.

Required if the Treatment Position Sequence (300A,063F) is present and the current Frame was acquired at a position specified in an Item of this Sequence.

>Start Cumulative Meterset

(3002,0106)

2C

The value of the Cumulative Meterset when the acquisition of the current frame started.

Required if the image was acquired while therapeutic radiation was applied. May be present otherwise.

The units are specified at invocation of the Macro.


C.36.2.4.8.1 RT Image Frame General Content Macro Attribute Descriptions
C.36.2.4.8.1.1 Frame Type

Frame Type (0008,9007) Value 1 and Value 2 shall identify the Pixel Data Characteristics in accordance with Section C.7.6.1.1.2.

Values 3 and 4 are required to be present.

Defined Terms for Value 3:

PLANNED

Image representing planned treatment position

TREATMENT

Image acquired at the actual treatment position or reconstructed based on the information about the actual treatment position

SIMULATION

Image acquired at a treatment device to simulate a potential treatment by a conventional simulator image

Defined Terms for Value 4:

IMAGE

Image

PORTFILM

Digitized Portal Image

DOSE

Integrated dose map at the imaging device plane [Chytyk-Praznik 2013]

FLUENCE

Fluence map

Defined Terms for Value 5:

PREDICTED

Expected values of integrated dose or fluence

ACQUIRED

Image, dose or fluence as acquired by image receptor

REF_MATCHING

Image reconstructed to compare against an image acquired at treatment position

DICOM PS3.3 2024c - Information Object Definitions