DICOM PS3.17 2023a - Explanatory Information

JJJJ.5.3 Examples For Enhanced CT Image Multi-Frame, Multi-Energy

JJJJ.5.3.1 Example For Mixed Multi-Energy Image Types

This example shows a mixed multi-energy image types: virtual monoenergetic, material specific and material removed image types encoded within the same enhanced multi-frame object

Table JJJJ.5.3.1-1. Dimension Module

Item

Attribute

Value

Comment

1

Dimension Index Pointer

(0008,9007)

Multi-energy CT Image Type

Dimension Description Label

Multi-energy image type

1 mono

2 material specific

3 material removed

...

2

Dimension Index Pointer

(0018,937C)

Monoenergetic Energy Equivalent

Functional Group Pointer

(0018,9364)

Multi-energy CT Characteristics Sequence

Dimension Description Label

keV

1 60

2 70

3 none

...

3

Dimension Index Pointer

(0040,9220)

Quantity Definition Sequence

Functional Group Pointer

(0040,0441)

Content Item Modifier Sequence

Material specific

keV

1 water

2 iodine

3 none

...


Table JJJJ.5.3.1-2. Per-Frame Attributes

Example

Multi-energy Family

Multi-energy CT Frame Type Value 5

Quantity Definition Sequence

Dimension Index Values

60 keV

Objective Image

VMI

1\1\3

Water

Material Quantification

MAT_SPECIFIC

(11713004, SCT, "Water")

2\3\1

Iodine

Material Quantification

MAT_SPECIFIC

(44588005, SCT, “Iodine”)

2\3\2

Iodine removed

Material Quantification

MAT_REMOVED

3\3\2


DICOM PS3.17 2023a - Explanatory Information