C.8.14.3 MR Spectroscopy Functional Group Macros

The following sections contain Functional Group Macro's specific to the MR Spectroscopy IOD.

Note: The attribute descriptions in the Functional Group Macros are written as if they were applicable to a single frame (i.e., the macro is part of the Per-frame Functional Groups Sequence). If an attribute is applicable to all frames (i.e. the macro is part of the Shared Functional Groups Sequence) the phrase "this frame" in the attribute description shall be interpreted to mean " for all frames".".

C.8.14.3.1 MR Spectroscopy Frame Type Macro

Table C.8-104 specifies the attributes of the MR Spectroscopy Frame Type Functional Group macro.

Table C.8-104MR SPECTROSCOPY FRAME TYPE MACRO ATTRIBUTES

Attribute Name Tag Type Attribute Description
MR Spectroscopy Frame Type Sequence (0018,9227) 1 Identifies sequence containing Frame Type Attributes. Only a single Item shall be included in this sequence.
>Frame Type (0008,9007) 1 Spectroscopy data characteristics. See C.8.14.5.1.1.
>Include 'MR Spectroscopy Description Macro' Table C.8-107

C.8.14.3.2 MR Spectroscopy FOV/Geometry Macro

Table C.8-105 specifies the attributes of the MR Spectroscopy FOV/Geometry Functional Group Macro.

Table C.8-105MR SPECTROSCOPY FOV/GEOMETRY MACRO ATTRIBUTES

Attribute Name Tag Type Attribute Description
MR Spectroscopy FOV/Geometry Sequence (0018,9103) 1 Identifies the geometry parameters of this frame. Only a single Item shall be included in this sequence.
>Spectroscopy Acquisition Data Columns (0018,9127) 1C Number of data points in the columns direction. Required if Frame Type (0008,9007) Value 1 is ORIGINAL. May be present otherwise.
>Spectroscopy Acquisition Phase Rows (0018,9095) 1C Number of Phase Encoding Rows. Required if Frame Type (0008,9007) Value 1 is ORIGINAL. May be present otherwise.
>Spectroscopy Acquisition Phase Columns (0018,9234) 1C Number of Phase Encoding Columns. Required if Frame Type (0008,9007) Value 1 is ORIGINAL. May be present otherwise.
>Spectroscopy Acquisition Out-of-plane Phase Steps (0018,9159) 1C Number of out-of-plane Phase Encoding steps. Required if MR Spectroscopy Acquisition Type (0018,9200) equals PLANE and Frame Type (0008,9007) Value 1 is ORIGINAL. May be present otherwise.
>Percent Sampling (0018,0093) 1C Fraction of acquisition matrix lines acquired, expressed as a percent. Required if Frame Type (0008,9007) Value 1 of this frame is ORIGINAL. May be present otherwise.
>Percent Phase Field of View (0018,0094) 1C Ratio of field of view dimension in phase direction to field of view dimension in frequency direction, expressed as a percent. Required if Frame Type (0008,9007) Value 1 of this frame is ORIGINAL. May be present otherwise.