A.36.4 Enhanced MR Color Image Information Object Definition

A.36.4.1 Enhanced MR Color Image IOD Description

The Enhanced Magnetic Resonance (MR) Color Image Information Object Definition (IOD) specifies an image, which has been created by a magnetic resonance device.

A.36.4.2 Enhanced MR Color Image Entity-Relationship Model

The E-R Model in section A.1.2 depicts those components of the DICOM Information Model, which directly reference the Enhanced MR Color Image IOD.

A.36.4.3 Enhanced MR Color Image IOD Module Table


IE Module Reference Usage
Patient Patient C.7.1.1 M
Clinical Trial Subject C.7.1.3 U
Study General Study C.7.2.1 M
Patient Study C.7.2.2 U
Clinical Trial Study C.7.2.3 U
Series General Series C.7.3.1 M
Clinical Trial Series C.7.3.2 U
MR Series C.8.13.6 M
Frame of Reference Frame of Reference C.7.4.1 M
Synchronization C.7.4.2 C- Required if time synchronization was applied.
Equipment General Equipment C.7.5.1 M
Enhanced General Equipment C.7.5.2 M
Image Image Pixel C.7.6.3 M
Enhanced Contrast/Bolus C.7.6.4b C - Required if contrast media were applied.
Multi-frame Functional Groups C.7.6.16 M
Multi-frame Dimension C.7.6.17 M
Cardiac Synchronization C. C - Required if cardiac synchronization was applied.
Respiratory Synchronization C. C - Required if respiratory synchronization was applied.
Bulk Motion Synchronization C. C - Required if bulk motion synchronization was applied.
Acquisition Context C.7.6.14 M
Specimen C.7.6.22 C - Required if Imaging Subject is a specimen
Device C.7.6.12 U
Enhanced MR Image C.8.13.1 M
MR Pulse Sequence C.8.13.4 C - Required if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
ICC Profile C.11.15.1 M
SOP Common C.12.1 M
Frame Extraction C.12.3 C - Required if the SOP Instance was created in response to a Frame-Level retrieve request

A. Enhanced MR Color Image IOD Content Constraints

The General Image Module, Overlay Plane Module and VOI LUT Module shall not be used in a Standard Extended SOP Class of the Enhanced MR Color Image.

Note: In order to annotate images, whether during acquisition or subsequently, SOP Instances of the Color Softcopy Presentation State Storage or the Structured Report Storage SOP Classes that reference the image SOP Instance, may be used.

No standard mechanism is provided for inclusion of annotations within the image SOP Instance itself, and implementers are discouraged from using private extensions to circumvent this restriction.

Color Softcopy Presentation State Storage Instances that are generated during acquisition may be referenced from the Image SOP Instance by using the Referenced Presentation State Sequence in the MR Image and Spectroscopy Instance Macro invoked from the Enhanced MR Image Module. See C.8.13.2.

The Photometric Interpretation (0028,0004) shall be RGB for uncompressed or lossless compressed transfer syntaxes that do not involve color space transformations, YBR_ICT for irreversible JPEG2000 transfer syntaxes, YBR_RCT for reversible JPEG2000 transfer syntaxes, YBR_PARTIAL_420 for MPEG2 transfer syntaxes and YBR_FULL_422 for other lossy compressed transfer syntaxes.

The Pixel Presentation (0008,9205) shall be TRUE_COLOR.

A.36.4.4 Enhanced MR Color Image Functional Group Macros

Table A.36-2 specifies the use of the Functional Group macros used in the Multi-frame Functional Groups Module for the Enhanced MR Color Image IOD.