C.8.13.2 MR Image and Spectroscopy Instance Macro

Table C.8-83 specifies the common attributes Enhanced MR Image Module and MR Spectroscopy Module.

Table C.8-83MR IMAGE AND SPECTROSCOPY INSTANCE MACRO

Attribute Name Tag Type Attribute Description
Acquisition Number (0020,0012) 3 A number identifying the single continuous gathering of data over a period of time that resulted in this image. Note: This number is not required to be unique across SOP Instances in a series. See also the description of the Referenced Raw Data Sequence (0008,9121).
Acquisition DateTime (0008,002A) 1C The date and time that the acquisition of data started. Note: The synchronization of this time with an external clock is specified in the synchronization Module in Acquisition Time synchronized (0018,1800). Required if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
Acquisition Duration (0018,9073) 1C The time in seconds needed to run the prescribed pulse sequence. See C.7.6.16.2.2.1 for further explanation. Required if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
Referenced Raw Data Sequence (0008,9121) 3 The Raw data that was used to derive this Image. One or more Items are permitted in this Sequence. Note: The items of in this sequence may identify raw data that has not been stored or encoded as a DICOM object. This allows recognition that images and spectra in different instances have been reconstructed from the same raw data.
>Include '’Hierarchical SOP Instance Reference Macro' Table C.17-3
Referenced Waveform Sequence (0008,113A) 3 References to waveforms acquired in conjunction with this image. These Waveforms may or may not be temporally synchronized with this image. One or more Items are permitted in this Sequence.
>Include '’Hierarchical SOP Instance Reference Macro' Table C.17-3
Referenced Image Evidence Sequence (0008,9092) 1C Full set of Composite SOP Instances referred to inside the Referenced Image Sequences of this Enhanced MR Image SOP Instance. See C.8.13.2.1.2 for further explanation. One or more Items shall be included in this sequence. Required if the Referenced Image Sequence (0008,1140) is present.
>Include '’Hierarchical SOP Instance Reference Macro' Table C.17-3
Source Image Evidence Sequence (0008,9154) 1C Full set of Composite SOP Instances referred to inside the Source Image Sequences of this Enhanced MR Image SOP Instance. See C.8.13.2.1.2 for further explanation. One or more Items shall be included in this sequence. Required if the Source Image Sequence (0008,2112) is present.
>Include '’Hierarchical SOP Instance Reference Macro' Table C.17-3
Referenced Presentation State Sequence (0008,9237) 1C References to Presentation State instances acquired in conjunction with this instance. Note: May only be used to reference Presentation States belonging to the acquired data and not to reference Presentation States generated subsequently such as during interpretation. One or more Items shall be included in this sequence. Required if Presentation State is generated during acquisition, shall not be present otherwise.
>Include '’Hierarchical SOP Instance Reference Macro' Table C.17-3
Content Qualification (0018,9004) 1 Content Qualification Indicator Enumerated Values: PRODUCT RESEARCH SERVICE See C.8.13.2.1.1 for further explanation.
Resonant Nucleus (0018,9100) 1C Nucleus that is resonant at the transmitter frequency. Defined Terms: 1H 3HE 7LI 13C 19F 23NA 31P 129XE Required if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
k-space Filtering (0018,9064) 1C Describes k-space filtering applied. Shall be NONE if no k-space filter. Defined Terms: COSINE COSINE_SQUARED FERMI GAUSSIAN HAMMING HANNING LORENTZIAN LRNTZ_GSS_TRNSFM RIESZ TUKEY NONE Required if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
Magnetic Field Strength (0018,0087) 1C Nominal field strength of the MR Magnet, in Tesla. Required if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.
Applicable Safety Standard Agency (0018,9174) 1 Agency that established MR safety standard applicable to the acquisition of this Instance. Defined Terms: IEC FDA MHW
Applicable Safety Standard Description (0018,9175) 3 Name and Version of the applicable standard.
Image Comments (0020,4000) 3 User-defined comments about the image.

C.8.13.2.1 MR Image and Spectroscopy Instance Macro Attribute Description

C.8.13.2.1.1 Content Qualification

Content Qualification (0018,9004) shall have the value PRODUCT if the content (image or Spectroscopy data) was produced with approved hardware and software. It shall have the value RESEARCH or SERVICE if there is any doubt as to whether the content was produced with approved hardware and software.

If data with Content Qualification (0018,9004) of RESEARCH or SERVICE is used to derive other content then it is expected that this derived content will also have Content Qualification (0018,9004) set to RESEARCH or SERVICE.

The intent of this element is to allow annotation of an advisory message that indicates that this content may not be suitable for clinical interpretation.

C.8.13.2.1.2 Evidence Sequence Attributes

The intent of the Referenced Image Evidence Sequence (0008,9092) and Source Image Evidence Sequence (0008,9154) is to provide a list of all unique SOP Instances listed in the Referenced Image Sequence (0008,1140) and Source Image Sequence (0008,2112) attributes respectively.