A.36.3 MR Spectroscopy Information Object Definition

A.36.3.1 MR Spectroscopy IOD Description

The Magnetic Resonance (MR) Spectroscopy Information Object Definition (IOD) specifies spectroscopic data, which has been created by a magnetic resonance device.

A.36.3.2 MR Spectroscopy entity-relationship model

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

A.36.3.3 MR Spectroscopy IOD Module Table

Table A.36-3MR SPECTROSCOPY 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
MR Spectroscopy 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.
Acquisition Context C.7.6.14 M
Specimen C.7.6.22 U
MR Spectroscopy C.8.14.1 M
MR Spectroscopy Pulse Sequence C.8.14.2 C - Required if Image Type (0008,0008) Value 1 is ORIGINAL. May be present otherwise.
MR Spectroscopy Data C.8.14.4 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

Note: 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.

A.36.3.4 MR Spectroscopy Functional Group Macros

Table A.36-4 specifies the use of the Functional Group macros used in the Multi-frame Functional Groups Module for the MR Spectroscopy IOD.

Table A.36-4MR SPECTROSCOPY 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
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 Spectroscopy Frame Type C.8.14.5.1 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 Spectroscopy FOV/Geometry C.8.14.3.2 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 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 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.