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DICOM PS3.3 2020a - Information Object Definitions​

Page 1121​

Attribute Name​

Tag​

Type​

Attribute Description​

 

>Scatter Fraction Factor​

(0054,1323)​

1C​

An estimate of the fraction of acquired counts that were due to scatter​

 

 

 

andthatwerecorrectedinthisframe.Thevalueshallbezeroifnoscatter​

 

 

 

correction was applied.​

 

 

 

 

Required if Frame Type (0008,9007) Value 1 is ORIGINAL. May be​

 

 

 

present otherwise.​

 

>Dead Time Factor​

(0054,1324)​

1C​

The average dead time correction factor that was applied to this frame.​

 

 

 

The value shall be one if no dead time correction was applied.​

Required if Frame Type (0008,9007) Value 1 is ORIGINAL. May be​ present otherwise.​

C.8.22.5.6 PET Reconstruction Macro​

Table C.8.22-17 specifies the Attributes of the PET Reconstruction Functional Group Macro, which describe the method used to re-​ construct this image.​

Table C.8.22-17. PET Reconstruction Macro Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

PET Reconstruction​

(0018,9749)​

1​

Contains the Attributes describing the reconstruction process for this frame.​

Sequence​

 

 

Only a single Item shall be included in this Sequence.​

 

 

 

>Reconstruction Type​ (0018,9756)​

1C​

Description of the type of algorithm used when reconstructing the image from the​

 

 

 

data acquired during the acquisition process.​

 

Defined Terms:​

 

2D​

 

3D​

 

3D_REBINNED​

 

Required if Frame Type (0008,9007) Value 1 equals ORIGINAL. May be present​

 

otherwise.​

>Reconstruction​

(0018,9315)​ 1C​ Description of the algorithm used when reconstructing the image from the data​

Algorithm​

acquired during the acquisition process.​

 

Defined Terms:​

 

FILTER_BACK_PROJ​

 

REPROJECTION​

 

RAMLA​

 

MLEM​

Required if Frame Type (0008,9007) Value 1 of this frame is ORIGINAL. May be​ present otherwise.​

>Iterative​

(0018,9769)​

1​

Iterative Reconstruction Method used.​

ReconstructionMethod​

 

 

Enumerated Values:​

 

 

 

 

 

 

YES​

 

 

 

NO​

>Number of Iterations​

(0018,9739)​

1C​

Number of iterations.​

Required if Frame Type (0008,9007) Value 1 equals ORIGINAL and Iterative​

Reconstruction Method (0018,9769) equals YES. May be present otherwise.​

- Standard -​

Page 1122​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

>Number of Subsets​

(0018,9740)​

1C​

Number of subsets.​

 

 

 

Required if Frame Type (0008,9007) Value 1 equals ORIGINAL and Iterative​

 

 

 

Reconstruction Method (0018,9769) equals YES. May be present otherwise.​

>Reconstruction​

(0018,1100)​

1C​

The diameter in mm of the region from which data were used in creating the​

Diameter​

 

 

reconstruction of the image. Data may exist outside this region and portions of the​

 

 

 

patient may exist outside this region. See Section C.8.22.5.4.1.​

 

 

 

Thediameterdefinesacircularregionthatisentirelycontainedwithintheencoded​

 

 

 

Pixel Data (7FE0,0010), unless the encoded image has been cropped after​

 

 

 

reconstruction.​

 

 

 

Note​

 

 

 

If not cropped or padded, for square images with square pixels, both​

 

 

 

values of Pixel Spacing (0028,0030) will be equal and equal to​

 

 

 

Reconstruction Diameter (0018,1100) / Rows (0028,0010) and​

 

 

 

Reconstruction Diameter (0018,1100) / Columns (0028,0011).​

 

 

 

RequiredifFrameType(0008,9007)Value1equalsORIGINALandReconstruction​

 

 

 

Field of View (0018,9317) is not present.​

 

 

 

Otherwise may be present if Frame Type (0008,9007) Value 1 equals DERIVED​

 

 

 

and Reconstruction Field of View (0018,9317) is not present.​

>Reconstruction Field​

(0018,9317)​

1C​

The field of view width followed by height as used for reconstruction in mm.​

of View​

 

 

Note​

 

 

 

If not cropped or padded, for both Pixel Spacing (0028,0030) and​

Reconstruction Pixel Spacing (0018,9322):​

•​Thefirstvalue(adjacentrowspacing)willbeequaltothesecondvalue​ of Reconstruction Field of View (0018,9317) / Rows (0028,0010).​

•​The second value (adjacent column spacing) will be equal to the first​ value of Reconstruction Field of View (0018,9317) / Columns​ (0028,0011).​

RequiredifImageType(0008,9007)Value1equalsORIGINALandReconstruction​

Diameter (0018,1100) is not present.​

Otherwise may be present if Frame Type (0008,9007) Value 1 equals DERIVED​ and Reconstruction Diameter (0018,1100) is not present.​

C.8.22.5.7 PET Table Dynamics Macro​

TableC.8.22-18 specifiesthe AttributesofthePETTable DynamicsFunctionalGroup Macro, whichdescribes thetable motionduring​ acquisition of the data.​

Table C.8.22-18. PET Table Dynamics Macro Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

PETTableDynamicsSequence​

(0018,9734)​

1​

Contains the Attributes describing the movement of the PET​

 

 

 

Table.​

 

 

 

Only a single Item shall be included in this Sequence.​

>Table Speed​

(0018,9309)​

1​

The distance in mm that the Table moves in one second during​

 

 

 

the gathering of data that resulted in this frame.​

- Standard -​

DICOM PS3.3 2020a - Information Object Definitions​

Page 1123​

C.8.22.6 Enhanced PET Corrections Module​

Table C.8.22-19 specifies the Attributes of the Enhanced PET Corrections Module.​

Table C.8.22-19. Enhanced PET Corrections Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Counts Source​

(0054,1002)​

1​ The primary source of counts.​

 

 

 

Enumerated Values:​

 

 

 

EMISSION​

 

 

 

TRANSMISSION​

Decay Corrected​

(0018,9758)​

1​ Decay (DECY) correction has been applied to image.​

 

 

 

Enumerated Values:​

 

 

 

YES​

 

 

 

NO​

Attenuation Corrected​

(0018,9759)​

1​ Attenuation (ATTN) correction has been applied to image.​

 

 

 

Enumerated Values:​

 

 

 

YES​

 

 

 

NO​

Scatter Corrected​

(0018,9760)​

1​ Scatter (SCAT) correction has been applied to image.​

 

 

 

Enumerated Values:​

 

 

 

YES​

 

 

 

NO​

Dead Time Corrected​

(0018,9761)​

1​ Dead time (DTIM) correction has been applied to image.​

 

 

 

Enumerated Values:​

 

 

 

YES​

 

 

 

NO​

Gantry Motion Corrected​

(0018,9762)​

1​ Gantry motion (MOTN) correction has been applied to image.​

 

 

 

Enumerated Values:​

 

 

 

YES​

 

 

 

NO​

Patient Motion Corrected​

(0018,9763)​

1​ Patient motion (PMOT) correction has been applied to image.​

 

 

 

Enumerated Values:​

 

 

 

YES​

 

 

 

NO​

Count Loss Normalization​

(0018,9764)​

1​ Count loss (CLN) normalization correction has been applied to​

Corrected​

 

 

image.​

Enumerated Values:​

YES​

NO​

- Standard -​

Page 1124​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

Randoms Corrected​

(0018,9765)​

1​

Randoms (RAN) correction has been applied to image.​

 

 

 

Enumerated Values:​

 

 

 

YES​

 

 

 

NO​

Non-uniform Radial Sampling​

(0018,9766)​

1​

Non-uniform radial sampling (RADL) correction has been applied​

Corrected​

 

 

to image.​

 

 

 

Enumerated Values:​

 

 

 

YES​

 

 

 

NO​

Sensitivity Calibrated​

(0018,9767)​

1​

Image is sensitivity calibrated using a dose calibrator (DCAL).​

 

 

 

Enumerated Values:​

 

 

 

YES​

 

 

 

NO​

Detector Normalization​

(0018,9768)​

1​

Detector normalization (NORM) correction has been applied to​

Correction​

 

 

image.​

 

 

 

Enumerated Values:​

 

 

 

YES​

 

 

 

NO​

Randoms Correction Method​

(0054,1100)​

1C​

Type of randoms correction processing.​

 

 

 

Defined Terms:​

 

 

 

DLYD​delayed event subtraction​

 

 

 

SING​singles estimation​

 

 

 

PDDL​Processed Delays, which is a correction based on a​

 

 

 

processed (filtered) version of the data acquired from the​

 

 

 

delayed coincidence channel.​

 

 

 

Required if Randoms Corrected (0018,9765) equals YES.​

Attenuation Correction Source​

(0018,9738)​

1C​

Contains the source of the attenuation map information used for​

 

 

 

attenuation correction. See Section C.8.22.3.1.2​

 

 

 

Required if Attenuation Corrected (0018,9759) equals YES.​

Attenuation Correction​

(0018,9770)​

1C​

Contains the temporal relationship between the attenuation​

Temporal Relationship​

 

 

correction source image and the PET image data. See​

 

 

 

Section C.8.22.3.1.3​

 

 

 

Required if Attenuation Corrected (0018,9759) equals YES.​

Scatter Correction Method​

(0054,1105)​

1C​

A textual description of the scatter correction processing. e.g.,​

 

 

 

convolution-subtraction,dualenergywindow,model-based,useof​

 

 

 

attenuation data.​

 

 

 

Required if Scatter Corrected (0018,9760) equals YES.​

Decay Correction DateTime​

(0018,9701)​

1C​

The date and time to which all frames in this Image were decay​

 

 

 

corrected.​

Required if Decay Corrected (0018,9758) equals YES.​

- Standard -​

DICOM PS3.3 2020a - Information Object Definitions​

Page 1125​

C.8.23 Surface Segmentation​

This section describes the specific Modules for the Surface Segmentation IOD.​

C.8.23.1 Surface Segmentation Module​

Table C.8.23-1 defines the general Attributes of the Surface Segmentation Module.​

Table C.8.23-1. Surface Segmentation Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Include Table 10-12 “Content Identification Macro Attributes”​

 

 

Content Date​

(0008,0023)​

1​

The date the content creation started.​

Content Time​

(0008,0033)​

1​

The time the content creation started.​

Segment Sequence​

(0062,0002)​

1​

Describes the segments that are contained within the​

 

 

 

data.​

 

 

 

One or more Items shall be included in this Sequence.​

>Include Table C.8.20-4 “Segment Description Macro Attributes”​

 

>Surface Count​

(0066,002A)​

1​

The number of surfaces that comprise this segment.​

 

 

 

Shall be greater than zero.​

>ReferencedSurfaceSequence​

(0066,002B)​

1​

Sequence referencing the surfaces composed to​

 

 

 

construct this segment.​

 

 

 

One or more Items shall be included in this Sequence.​

 

 

 

The number of Items shall equal the value of Surface​

 

 

 

Count (0066,002A).​

>>Referenced Surface Number​

(0066,002C)​

1​

Identifies the Surface Number (0066,0003) within the​

 

 

 

Surface Sequence (0066,0002) to which this reference​

 

 

 

applies.​

>>SegmentSurfaceGeneration​

(0066,002D)​

1​

Adescriptionofhowthissegmentsurfacewasderived.​

Algorithm Identification​

 

 

Only a single Item shall be included in this Sequence.​

Sequence​

 

 

>>>Include Table 10-19 “Algorithm Identification Macro Attributes”​

For Algorithm Family Code Sequence (0066,002F)​

 

 

 

Baseline CID 7162 “Surface Processing Algorithm​

 

 

 

Families”.​

>>Segment Surface Source​

(0066,002E)​

2​

A Sequence that identifies the set of Instances by their​

Instance Sequence​

 

 

SOP Class/Instance pair that were used to derive this​

 

 

 

segment surface.​

Zero or more Items shall be included in this Sequence.​

>>>Include Table 10-3 “Image SOP Instance Reference Macro Attributes”​

C.8.24 Enhanced US Volume Modules and Functional Group Macros​

C.8.24.1 Enhanced US Series Module​

Table C.8.24.1-1 specifies Attributes for the Enhanced US Series Module, including specialization of Attributes in the General Series​ Module for use in the Enhanced US Series Module.​

- Standard -​

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