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DICOM PS3.3 2020a - Information Object Definitions​

Page 941​

Defined Term Name​

Defined Term Description​

 

ASL​

Arterial Spin Labeling​

 

CINE​

Cardiac CINE​

 

DIFFUSION​

Collected to show diffusion effects.​

 

DIXON​

Dixon Water Fat Imaging Techniques.​

 

FLOW_ENCODED​

Flow Encoded​

 

FLUID_ATTENUATED​

Fluid Attenuated T2 weighted​

 

FMRI​

Collected for functional imaging calculations.​

 

MAX_IP​

Maximum Intensity Projection​

 

MIN_IP​

Minimum Intensity Projection​

 

M_MODE​

Image line over time​

 

METABOLITE_MAP​

Metabolite Maps from spectroscopy data​

 

MULTIECHO​

Multiple echoes with different contrast weighting (e.g., proton density and T2​

 

weighted)​

 

PROTON_DENSITY​

Proton density weighted​

 

REALTIME​

Real-time collection of single slices​

 

STIR​

Short Tau Inversion Recovery​

 

TAGGING​

Images with superposition of thin saturation bands​

 

TEMPERATURE​

Images record temperature​

 

T1​

T1 weighted​

 

T2​

T2 weighted​

 

T2_STAR​

T2* weighted​

 

TOF​

Time Of Flight weighted​

 

VELOCITY​

Velocity encoded​

 

C.8.13.1.1.1.4 Derived Pixel Contrast​

Table C.8-81 specifies the Defined Terms for MR additional to those defined in Section C.8.16.1.4 for Value 4 for Image Type​ (0008,0008) and Frame Type (0008,9007).​

Table C.8-81. MR-Specific Image Type and Frame Type Value 4​

Defined Term Name​

Defined Term Description​

Note​

This table formerly contained defined terms such as ADC, etc. These have been replaced with the use of QUANTITY and​ the appropriate coded entry used in Quantity Definition Sequence (0040,9220) of the Real World Value Mapping Functional​ Group Macro. For former defined terms, see PS3.3 2018c.​

C.8.13.1.1.2 Photometric Interpretation, Pixel Representation, Samples Per Pixel, Planar Configuration, Bits Allocated and​ Bits Stored​

Table C.8-82 specifies the Enumerated Values and allowed combinations of Samples per Pixel (0028,0002), Planar Configuration​ (0028,0006),PixelRepresentation(0028,0103),BitsAllocated(0028,0100)andBitsStored(0028,0101)foreachallowablePhotometric​ Interpretation allowed by the IOD that invokes this Module.​

- Standard -​

Page 942​

DICOM PS3.3 2020a - Information Object Definitions​

Table C.8-82. Allowed Combinations of Attribute Values for Photometric Interpretation, Samples Per​ Pixel, Planar Configuration, Pixel Representation, Bits Allocated and Bits Stored​

Photometric Interpretation​

Samples per​

Planar​

Pixel​

Bits Allocated​ Bits Stored​

 

Pixel​

Configuration​

Representation​

 

 

MONOCHROME2​

1​

-​

0 or 1​

8​

8​

MONOCHROME2​

1​

-​

0 or 1​

16​

12, 16​

RGB​

3​

0​

0​

8​

8​

YBR_ICT​

3​

0​

0​

8​

8​

YBR_RCT​

3​

0​

0​

8​

8​

YBR_PARTIAL_420​

3​

0​

0​

8​

8​

YBR_FULL_422​

3​

0​

0​

8​

8​

YBR_FULL​

3​

0​

0​

8​

8​

C.8.13.1.1.3 Pixel Presentation​

See Section C.8.16.2.1.1. No additional requirements or Defined Terms.​

C.8.13.1.1.3.1 Supplemental Palette Color LUTs​

See Section C.8.16.2.1.1.1.​

C.8.13.1.1.4 Volumetric Properties​

See Section C.8.16.2.1.2. No additional requirements or Defined Terms.​

C.8.13.1.1.5 Volume Based Calculation Technique​

See Section C.8.16.2.1.3. No additional requirements or Defined Terms.​

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.8-83. MR Image and Spectroscopy Instance Macro Attributes​

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​ and SOP Class UID is not "1.2.840.10008.5.1.4.1.1.4.4" (Legacy​ Converted). May be present otherwise.​

- Standard -​

 

DICOM PS3.3 2020a - Information Object Definitions​

Page 943​

Attribute Name​

Tag​

Type​

Attribute Description​

 

Acquisition Duration​

(0018,9073)​

1C​

The time in seconds needed to run the prescribed pulse sequence.​

 

 

 

See Section C.7.6.16.2.2.1 for further explanation.​

 

 

 

 

Required if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED​

 

 

 

and SOP Class UID is not "1.2.840.10008.5.1.4.1.1.4.4" (Legacy​

 

 

 

Converted). May be present otherwise.​

 

Referenced Raw Data​

(0008,9121)​

3​

The Raw data that was used to derive this Image.​

 

Sequence​

 

 

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 Table C.17-3 “Hierarchical SOP Instance Reference​ Macro Attributes”​

Referenced Waveform​

(0008,113A)​

3​

References to waveforms acquired in conjunction with this image.​

Sequence​

 

 

These Waveforms may or may not be temporally synchronized with​

 

 

 

this image.​

 

 

 

One or more Items are permitted in this Sequence.​

>Include Table C.17-3 “Hierarchical SOP Instance Reference​

Macro Attributes”​

 

 

 

Referenced Image​

(0008,9092)​

1C​

FullsetofCompositeSOPInstancesreferredtoinsidetheReferenced​

Evidence Sequence​

 

 

Image Sequences of this Enhanced MR Image SOP Instance. See​

 

 

 

Section 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 Table C.17-3 “Hierarchical SOP Instance Reference​

Macro Attributes”​

 

 

 

Source Image Evidence​

(0008,9154)​

1C​

Full set of Composite SOP Instances referred to inside the Source​

Sequence​

 

 

Image Sequences of this Enhanced MR Image SOP Instance. See​

 

 

 

Section 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 Table C.17-3 “Hierarchical SOP Instance Reference​

Macro Attributes”​

 

 

 

Referenced Presentation​

(0008,9237)​

1C​

References to Presentation State instances acquired in conjunction​

State Sequence​

 

 

with this instance.​

Note​

MayonlybeusedtoreferencePresentationStatesbelonging​ totheacquireddataandnottoreferencePresentationStates​ 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.​

- Standard -​

Page 944​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

>Include Table C.17-3 “Hierarchical SOP Instance Reference​

Macro Attributes”​

 

 

 

Content Qualification​

(0018,9004)​

1C​

Content Qualification Indicator​

Enumerated Values:​

PRODUCT​

RESEARCH​

SERVICE​

See Section C.8.13.2.1.1 for further explanation.​

RequiredifSOPClassUIDisnot"1.2.840.10008.5.1.4.1.1.4.4"(Legacy​

Converted), may be present otherwise.​

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​ and SOP Class UID is not "1.2.840.10008.5.1.4.1.1.4.4" (Legacy​ Converted). May be present otherwise.​

k-space Filtering​

(0018,9064)​

1C​

Describes k-spacefiltering applied. Shallbe NONE if no k-spacefilter.​

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​ and SOP Class UID is not "1.2.840.10008.5.1.4.1.1.4.4" (Legacy​ Converted). 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​ and SOP Class UID is not "1.2.840.10008.5.1.4.1.1.4.4" (Legacy​ Converted). May be present otherwise.​

- Standard -​

 

DICOM PS3.3 2020a - Information Object Definitions​

Page 945​

Attribute Name​

Tag​

Type​

Attribute Description​

 

Applicable Safety​

(0018,9174)​

1C​

Agency that established MR safety standard applicable to the​

Standard Agency​

 

 

acquisition of this Instance.​

 

 

 

 

Defined Terms:​

 

 

 

 

IEC​

 

 

 

 

FDA​

 

 

 

 

MHW​

 

 

 

 

RequiredifSOPClassUIDisnot"1.2.840.10008.5.1.4.1.1.4.4"(Legacy​

 

 

 

Converted). May be present otherwise.​

 

Applicable Safety​

(0018,9175)​

3​

Name and Version of the applicable standard.​

 

Standard Description​

 

 

 

 

Image Comments​

(0020,4000)​

3​

User-defined comments about the image.​

 

Isocenter Position​

(300A,012C)​

3​

Isocenter coordinates (x,y,z), in mm. Specifies the location of the​

 

 

 

machineisocenterinthePatient-BasedCoordinateSystemassociated​

 

 

 

with the Frame of Reference. It allows transformation from the​

 

 

 

Equipment-BasedCoordinateSystemtothePatient-BasedCoordinate​

 

 

 

System.​

 

B1rms​

(0018,1320)​

3​

B1+rmsvalueinunitsofmicro_tesla(uT)fortheacquisitionproducing​

 

 

 

the image. See [IEC 60601-2-33].​

 

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​

TheintentoftheReferencedImageEvidenceSequence(0008,9092)andSourceImageEvidenceSequence(0008,9154)istoprovide​ a list of all unique SOP Instances listed in the Referenced Image Sequence (0008,1140) and Source Image Sequence (0008,2112)​ Attributes respectively.​

C.8.13.3 MR Image Description Macro​

This section describes the MR Image Description Macro.​

Table C.8-84 specifies the Attributes of the MR Image Description Macro.​

Table C.8-84. MR Image Description Macro Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Complex Image Component​

(0008,9208)​

1C​

Representation of complex data of frames in the SOP Instance. See​

 

 

 

Section C.8.13.3.1.1 for a description and Defined Terms.​

 

 

 

RequiredifSOPClassUIDisnot"1.2.840.10008.5.1.4.1.1.4.4"(Legacy​

 

 

 

Converted). May be present otherwise.​

- Standard -​

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