DICOM PS3.3 2020b - Information Object Definitions
C.8.13.5.6 MR Imaging Modifier Macro

Table C.8-93 specifies the Attributes of the MR Imaging Modifier Functional Group Macro.

Table C.8-93. MR Imaging Modifier Macro Attributes

Attribute Name

Tag

Type

Attribute Description

MR Imaging Modifier Sequence

(0018,9006)

1

A Sequence containing MR modifier Sequence Attributes.

Only a single Item shall be included in this Sequence.

>Magnetization Transfer

(0018,9020)

1C

Magnetization Transfer pulse sequence.

Enumerated Values:

ON_RESONANCE

OFF_RESONANCE

NONE

Required if Frame Type (0008,9007) Value 1 is ORIGINAL. May be present otherwise.

>Blood Signal Nulling

(0018,9022)

1C

Blood Signal Nulling ("Black Blood") preparatory pulse sequence.

Enumerated Values:

YES

NO

Required if Frame Type (0008,9007) Value 1 is ORIGINAL. May be present otherwise.

>Tagging

(0018,9028)

1C

Tagging.

Defined Terms:

GRID

LINE

NONE

Required if Frame Type (0008,9007) Value 1 is ORIGINAL. May be present otherwise.

>Tag Spacing First Dimension

(0018,9030)

1C

Space between lines in mm.

Required if Frame Type (0008,9007) Value 1 of this frame is ORIGINAL and Tagging (0018,9028) is GRID or LINE.

Otherwise may be present if Frame Type (0008,9007) Value 1 is DERIVED and Tagging (0018,9028) is GRID or LINE.

>Tag Spacing Second Dimension

(0018,9218)

1C

Space between the lines in mm in the other direction.

Required if Frame Type (0008,9007) Value 1 of this frame is ORIGINAL and Tagging (0018,9028) is GRID.

Otherwise may be present if Frame Type (0008,9007) Value 1 is DERIVED and Tagging (0018,9028) is GRID.

>Tag Angle First Axis

(0018,9019)

1C

Angle of the tag lines relative to the rows axis (left to right) of the image, with a range of 0-180 degrees. The angle is increasing in clockwise direction.

Required if Frame Type (0008,9007) Value 1 of this frame is ORIGINAL and Tagging (0018,9028) is GRID or LINE.

Otherwise may be present if Frame Type (0008,9007) Value 1 is DERIVED and Tagging (0018,9028) is GRID or LINE.

>Tag Angle Second Axis

(0018,9219)

1C

Angle of the tag lines relative to the rows axis (left to right) of the image, with a range of 0-180 degrees. The angle is increasing in clockwise direction.

Required if Frame Type (0008,9007) Value 1 of this frame is ORIGINAL and Tagging (0018,9028) is GRID.

Otherwise may be present if Frame Type (0008,9007) Value 1 is DERIVED and Tagging (0018,9028) is GRID.

>Tag Thickness

(0018,9035)

1C

Thickness of the line in mm.

Required if Frame Type (0008,9007) Value 1 of this frame is ORIGINAL and Tagging (0018,9028) is GRID or LINE.

Otherwise may be present if Frame Type (0008,9007) Value 1 is DERIVED and Tagging (0018,9028) is GRID or LINE.

>Tagging Delay

(0018,9184)

3

Delay time in ms of the beginning of the application of the tagging pattern relative to the last R-peak.

>Transmitter Frequency

(0018,9098)

1C

Center transmitter frequency in MHz.

Required if Frame Type (0008,9007) Value 1 is ORIGINAL. May be present otherwise.

>Pixel Bandwidth

(0018,0095)

1C

Reciprocal of the effective sampling period, in hertz per pixel.

Required if Frame Type (0008,9007) Value 1 is ORIGINAL. May be present otherwise.


DICOM PS3.3 2020b - Information Object Definitions