C.8.13.3 MR Image Description Macro
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C.8.13.3 MR Image Description Macro

This section describes the MR Image Description Macro.

Table C.8-84 specifies the attributes of the MR Image Description Macro.

Table C.8-84. MR Image Description Macro Attributes

Attribute Name

Tag

Type

Attribute Description

Complex Image Component

(0008,9208)

1C

Representation of complex data of frames in the SOP Instance. See Section C.8.13.3.1.1 for a description and Defined Terms.

Required if SOP Class UID is not "1.2.840.10008.5.1.4.1.1.4.4" (Legacy Converted). May be present otherwise.

Acquisition Contrast

(0008,9209)

1C

Indication of acquisition contrast used with frames in the SOP Instance. See Section C.8.13.3.1.2 for a description and Defined Terms.

Required if SOP Class UID is not "1.2.840.10008.5.1.4.1.1.4.4" (Legacy Converted). May be present otherwise.

C.8.13.3.1 MR Image Description Attribute Description
C.8.13.3.1.1 Complex Image Component

The value of Complex Image Component attribute (0008,9208) shall be used to indicate which component of the complex representation of the signal is represented in the pixel data.

Table C.8-85 specifies the Defined Terms for Complex Image Component (0008,9208).

Table C.8-85. Complex Image Component Attribute Values

Defined Term Name

Defined Term Description

MAGNITUDE

The magnitude component of the complex image data.

PHASE

The phase component of the complex image data.

REAL

The real component of the complex image data.

IMAGINARY

The imaginary component of the complex image data.

MIXED

Used only as a value in Complex Image Component (0008,9208) in the Enhanced MR Image Module if frames within the image SOP Instance contain different values for the Complex Image Component attribute in the MR Frame Type Functional Group.

C.8.13.3.1.2 Acquisition Contrast

Table C.8-86 specifies the Defined Terms for Acquisition Contrast (0008,9209).

Table C.8-86. Acquisition Contrast Values

Defined Term Name

Defined Term Description

DIFFUSION

Diffusion weighted contrast

FLOW_ENCODED

Flow Encoded contrast

FLUID_ATTENUATED

Fluid Attenuated T2 weighted contrast

PERFUSION

Perfusion weighted contrast

PROTON_DENSITY

Proton Density weighted contrast

STIR

Short Tau Inversion Recovery

TAGGING

Superposition of thin saturation bands onto image

T1

T1 weighted contrast

T2

T2 weighted contrast

T2_STAR

T2* weighted contrast

TOF

Time Of Flight weighted contrast

UNKNOWN

Value should be UNKNOWN if acquisition contrasts were combined resulting in an unknown contrast. Also this value should be used when the contrast is not known.

MIXED

Used only as a value in Acquisition Contrast (0008,9209) attribute in the Enhanced MR Image Type Module if frames within the image SOP Instance contain different values for the Acquisition Contrast attribute in the MR Frame Type Functional Group.

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