DICOM PS3.17 2019c - Explanatory Information

YY.2 An Example of Distance Line Defined As A Combined Graphic Object

Now, a distance line is defined as a combined graphic object, i.e., grouping a text object with a polyline graphic object (see Figure YY-2). Distance lines are typically used for measurements and for computing the grayscale values along this line to build up a profile curve.

This simple example is intended to show how the Graphic Group ID (0070,0295) is used for grouping of graphic annotations.

Combined Graphic Object 'DistanceLine'

Figure YY-2. Combined Graphic Object 'DistanceLine'


Table YY-3. Graphic Group Module

Attribute Name

Tag

Attribute Value

Graphic Group Sequence

(0070,0234)

>Graphic Group ID

(0070,0295)

1

>Graphic Group Label

(0070,0207)

DistanceLine

>Graphic Group Description

(0070,0208)

Measurement Tool


Table YY-4. Graphic Annotation Module Attributes

Attribute Name

Tag

Attribute Value

Graphic Annotation Sequence

(0070,0001)

>Text Object Sequence

(0070,0008)

>>Anchor Point Annotation Units

(0070,0004)

PIXEL

>>Anchor Point

(0070,0014)

70/20

>>Anchor Point Visibility

(0070,0015)

N

>>Unformatted Text Value

(0070,0006)

52.20 mm

>>Graphic Group ID

(0070,0295)

1

>Compound Object Sequence

(0070,0009)

>>Graphic Annotation Units

(0070,0005)

PIXEL

>>Graphic Dimensions

(0070,0020)

2

>>Number of Graphic Points

(0070,0021)

2

>>Graphic Data

(0070,0022)

10\10\150\10

>>Graphic Type

(0070,0023)

POLYLINE

>>Graphic Group ID

(0070,0295)

1


DICOM PS3.17 2019c - Explanatory Information