A.36.2 Enhanced MR Image Information Object Definition

A.36.2.1 Enhanced MR Image IOD Description

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

A.36.2.2 Enhanced MR 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 Image IOD.

A.36.2.3 Enhanced MR Image IOD Module Table

Table A.36-1ENHANCED MR IMAGE IOD MODULES

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.7.6.18.1 C - Required if cardiac synchronization was applied.
Respiratory Synchronization C.7.6.18.2 C - Required if respiratory synchronization was applied.
Bulk Motion Synchronization C.7.6.18.3 C - Required if bulk motion synchronization was applied.
Supplemental Palette Color Lookup Table C.7.6.19 C - Required if Pixel Presentation (0008,9205) in the Enhanced MR Image Module equals COLOR or MIXED.
Acquisition Context C.7.6.14 M
Device C.7.6.12 U
Specimen C.7.6.22 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 U
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.36.2.3.1 Enhanced MR 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 Image.

Notes: 1. In order to annotate images, whether during acquisition or subsequently, SOP Instances of the Grayscale 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.

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

2. The Curve Module was previously include in the list of Modules that shall not be present, but has been retired from DICOM. It is still not permitted to be present. See PS 3.3 2004.

3. The Specimen Identification Module was previously included in this IOD but has been retired, and its functionality replaced by the Specimen Module. See PS 3.3-2008.

The Photometric Interpretation (0028,0004) defined in C.8.13.1 Enhanced MR Image Module, shall be MONOCHROME2.

A.36.2.4 Enhanced MR 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 Image IOD.

Table A.36-2ENHANCED MR IMAGE FUNCTIONAL GROUP MACROS

Functional Group Macro Section Usage
Pixel Measures C.7.6.16.2.1 M
Frame Content C.7.6.16.2.2 M - May not be used as a Shared Functional Group.
Plane Position (Patient) C.7.6.16.2.3 M
Plane Orientation (Patient) C.7.6.16.2.4 M
Referenced Image C.7.6.16.2.5 C - Required if the image or frame has been planned on another image or frame. May be present otherwise
Derivation Image C.7.6.16.2.6 C - Required if the image or frame has been derived from another SOP Instance.
Cardiac Synchronization C.7.6.16.2.7 C - Required if Cardiac Synchronization Technique (0018,9037) equals other than NONE and if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
Frame Anatomy C.7.6.16.2.8 M
Pixel Value Transformation C.7.6.16.2.9 C - Required if Photometric Interpretation (0028,0004) is MONOCHROME2.
Frame VOI LUT C.7.6.16.2.10 U - May be used only if Photometric Interpretation (0028,0004) is MONOCHROME2.
Real World Value Mapping C.7.6.16.2.11 U - May be used only if Photometric Interpretation (0028,0004) is MONOCHROME2.
Contrast/Bolus Usage C.7.6.16.2.12 C - Required if Contrast/Bolus Agent Sequence (0018,0012) is used.
Respiratory Synchronization C.7.6.16.2.17 C - Required if Respiratory Motion Compensation Technique (0018,9170) equals other than NONE, REALTIME or BREATH_HOLD and if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
MR Image Frame Type C.8.13.5.1 M
MR Timing and Related Parameters C.8.13.5.2 C - Required if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
MR FOV/Geometry C.8.13.5.3 C - Required if Geometry of k-Space Traversal (0018,9032) equals RECTILINEAR and if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
MR Echo C.8.13.5.4 C - Required if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
MR Modifier C.8.13.5.5 C - Required if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
MR Imaging Modifier C.8.13.5.6 C - Required if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
MR Receive Coil C.8.13.5.7 C - Required if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
MR Transmit Coil C.8.13.5.8 C - Required if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
MR Diffusion C.8.13.5.9 C - Required if Acquisition Contrast (0008,9209) in any MR Image Frame Type Functional Group in the SOP Instance equals DIFFUSION and Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
MR Averages C.8.13.5.10 C - Required if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
MR Spatial Saturation C.8.13.5.11 C - Required if Spatial Pre-saturation (0018,9027) equals SLAB for any frame in the SOP Instance and Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
MR Metabolite Map C.8.13.5.12 C - Required if Image Type (0008,0008) Value 3 equals METABOLITE_MAP. May be present otherwise.
MR Velocity Encoding C.8.13.5.13 C - Required if Phase Contrast (0018,9014) equals YES and Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
MR Arterial Spin Labeling C.8.13.5.14 C – Required if Image Type (0008,0008) Value 3 is ASL. May be present otherwise.