DICOM PS3.3 2021c - Information Object Definitions

C.8.15.3.12 Multi-energy CT Characteristics Macro (Current)
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##### 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 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 2021c - Information Object Definitions