DICOM PS3.3 2021d - Information Object Definitions
C.8.15.3.12 Multi-energy CT Characteristics Macro (Current)
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PS3.3 > Information Module Definitions (Normative) > Modality Specific Modules > Enhanced CT Image > Enhanced CT Image Functional Group Macros > Multi-energy CT Characteristics Macro
C.8.15.3.12 Multi-energy CT Characteristics Macro

This Macro specifies the Attributes for CT Image Characteristics.

Table C.8.15.3.12-1. Multi-energy CT Characteristics Macro Attributes

Attribute Name

Tag

Type

Attribute Description

Multi-energy CT Characteristics Sequence

(0018,9364)

1C

Multi-energy characteristics of the generated image.

Required if Image Type (0008,0008) Value 4 is VMI. May be present otherwise.

Only a single Item shall be included in this Sequence.

>Monoenergetic Energy Equivalent

(0018,937C)

1C

Single energy equivalent in keV.

Required if Image Type (0008,0008) Value 4 is EQUAL to VMI. May be present otherwise.

Note

If the Image Type (0008,0008) Value 4 is (MAT_REMOVED, MAT_MODIFIED) and a VMI image was used as the source then this value reflects the keV value of the VMI image.

>Derivation Algorithm Sequence

(0022,1612)

3

Software algorithm that performed the derivation.

One or more Items are permitted in this Sequence.

>>Include Table 10-19 “Algorithm Identification Macro Attributes”

>Performed Processing Parameters Sequence

(0074,1212)

3

Parameters used to perform the derivation algorithm.

Note

Implementers are encouraged to put the Algorithm Parameters here instead of in Algorithm Parameters (0066,0032) in the Algorithm Identification Macro

One or more items are permitted in this Sequence.

>>Include Table 10.2.1-1 “Content Item with Modifiers Macro Attributes”


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C.8.15.3.11 CT Additional X-Ray Source Macro  Home  C.8.15.3.13 Multi-energy CT Processing Macro
DICOM PS3.3 2021d - Information Object Definitions