Материал: part17

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Page 106​

DICOM PS3.17 2020a - Explanatory Information​

 

 

Node​

Code Meaning of Concept​

Code Meaning or Example Value​

TID​

 

Name​

 

 

 

1.2.8.8.12.11.2​

Algorithm Name​

"Calc Detector"​

TID 4019​

 

1.2.8.8.12.11.3​

Algorithm Version​

"V2.4"​

TID 4019​

 

1.2.8.8.12.11.4​

Center​

POINT​

TID 4021​

 

1.2.8.8.12.11.4.1​

 

Reference to node 1.1.1​

TID 4021​

 

1.2.8.8.12.11.5​

Outline​

SCOORD​

TID 4021​

 

1.2.8.8.12.11.5.1​

 

Reference to node 1.1.1​

TID 4021​

 

1.2.8.8.12.12​

Single Image Finding​

Individual Calcification​

TID 4006​

 

1.2.8.8.12.12.1​

Rendering Intent​

Presentation Optional​

TID 4006​

 

1.2.8.8.12.12.2​

Algorithm Name​

"Calc Detector"​

TID 4019​

 

1.2.8.8.12.12.3​

Algorithm Version​

"V2.4"​

TID 4019​

 

1.2.8.8.12.12.4​

Center​

POINT​

TID 4021​

 

1.2.8.8.12.12.4.1​

 

Reference to node 1.1.1​

TID 4021​

 

1.2.8.8.12.12.5​

Outline​

SCOORD​

TID 4021​

 

1.2.8.8.12.12.5.1​

 

Reference to node 1.1.1​

TID 4021​

 

Included content from prior mammography CAD report (see Example 2, starting with node 1.2.4.2)​

 

 

Node​

Code Meaning of Concept​ Code Meaning or Example Value​

TID​

 

Name​

 

 

 

1.2.8.8.13​

Single Image Finding​

Calcification Cluster​

TID 4006​

 

1.2.8.8.13.1​

Rendering Intent​

Presentation Required​

TID 4006​

 

1.2.8.8.13.2​

Algorithm Name​

"Calc Clustering"​

TID 4019​

 

1.2.8.8.13.3​

Algorithm Version​

"V2.4"​

TID 4019​

 

1.2.8.8.13.4​

Center​

POINT​

TID 4021​

 

1.2.8.8.13.4.1​

 

Reference to node 1.1.5​

TID 4021​

 

1.2.8.8.13.5​

Outline​

SCOORD​

TID 4021​

 

1.2.8.8.13.5.1​

 

Reference to node 1.1.5​

TID 4021​

 

1.2.8.8.13.6​

Number of Calcifications​

2​

TID 4010​

 

1.2.8.8.13.7​

[Observation Context content​

TID 4022​

 

 

items]​

 

 

 

1.2.8.8.13.8​

Single Image Finding​

Individual Calcification​

TID 4006​

 

1.2.8.8.13.8.1​

Rendering Intent​

Presentation Optional​

TID 4006​

 

1.2.8.8.13.8.2​

Algorithm Name​

"Calc Detector"​

TID 4019​

 

1.2.8.8.13.8.3​

Algorithm Version​

"V2.4"​

TID 4019​

 

1.2.8.8.13.8.4​

Center​

POINT​

TID 4021​

 

1.2.8.8.13.8.4.1​

 

Reference to node 1.1.5​

TID 4021​

 

1.2.8.8.13.8.5​

Outline​

SCOORD​

TID 4021​

 

1.2.8.8.13.8.5.1​

 

Reference to node 1.1.5​

TID 4021​

 

1.2.8.8.13.9​

Single Image Finding​

Individual Calcification​

TID 4006​

 

1.2.8.8.13.9.1​

Rendering Intent​

Presentation Optional​

TID 4006​

 

1.2.8.8.13.9.2​

Algorithm Name​

"Calc Detector"​

TID 4019​

 

1.2.8.8.13.9.3​

Algorithm Version​

"V2.4"​

TID 4019​

 

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DICOM PS3.17 2020a - Explanatory Information​

 

Page 107​

Node​

Code Meaning of Concept​ Code Meaning or Example Value​

TID​

 

 

Name​

 

 

1.2.8.8.13.9.4​

Center​

POINT​

TID 4021​

 

1.2.8.8.13.9.4.1​

 

Reference to node 1.1.5​

TID 4021​

 

1.2.8.8.13.9.4​

Outline​

SCOORD​

TID 4021​

 

1.2.8.8.13.9.4.1​

 

Reference to node 1.1.5​

TID 4021​

 

More current year content:​

 

 

Node​

Code Meaning of Concept​ Code Meaning or Example Value​

TID​

 

Name​

 

 

1.3​

Summary of Detections​

Succeeded​

TID 4000​

1.3.1​

Successful Detections​

 

TID 4015​

1.3.1.1​

Detection Performed​

Mammography breast density​

TID 4017​

1.3.1.1.1​

Algorithm Name​

"Density Detector"​

TID 4019​

1.3.1.1.2​

Algorithm Version​

"V3.7"​

TID 4019​

1.3.1.1.3​

 

Reference to node 1.1.1​

TID 4017​

1.3.1.1.4​

 

Reference to node 1.1.2​

TID 4017​

1.3.1.1.5​

 

Reference to node 1.1.3​

TID 4017​

1.3.1.1.6​

 

Reference to node 1.1.4​

TID 4017​

1.3.1.2​

Detection Performed​

Individual Calcification​

TID 4017​

1.3.1.2.1​

Algorithm Name​

"Calc Detector"​

TID 4019​

1.3.1.2.2​

Algorithm Version​

"V2.4"​

TID 4019​

1.3.1.2.3​

 

Reference to node 1.1.1​

TID 4017​

1.3.1.2.4​

 

Reference to node 1.1.2​

TID 4017​

1.3.1.2.5​

 

Reference to node 1.1.3​

TID 4017​

1.3.1.2.6​

 

Reference to node 1.1.4​

TID 4017​

1.3.1.3​

Detection Performed​

Calcification Cluster​

TID 4017​

1.3.1.3.1​

Algorithm Name​

"Calc Clustering"​

TID 4019​

1.3.1.3.2​

Algorithm Version​

"V2.4"​

TID 4019​

1.3.1.3.3​

 

Reference to node 1.1.1​

TID 4017​

1.3.1.4​

Detection Performed​

Calcification Cluster​

TID 4017​

1.3.1.4.1​

Algorithm Name​

"Calc Cluster Detector"​

TID 4019​

1.3.1.4.2​

Algorithm Version​

"V2.4"​

TID 4019​

1.3.1.4.3​

 

Reference to node 1.1.1​

TID 4017​

1.3.1.4.4​

 

Reference to node 1.1.2​

TID 4017​

1.3.1.4.5​

 

Reference to node 1.1.3​

TID 4017​

1.3.1.4.6​

 

Reference to node 1.1.4​

TID 4017​

1.4​

Summary of Analyses​

Succeeded​

TID 4000​

1.4.1​

Successful Analyses​

 

TID 4016​

1.4.1.1​

Analysis Performed​

Mass Correlation​

TID 4018​

1.4.1.1.1​

Algorithm Name​

"Mass Maker"​

TID 4019​

1.4.1.1.2​

Algorithm Version​

"V1.9"​

TID 4019​

1.4.1.1.3​

 

Reference to node 1.1.2​

TID 4018​

- Standard -​

Page 108​

DICOM PS3.17 2020a - Explanatory Information​

 

Node​

Code Meaning of Concept​ Code Meaning or Example Value​

TID​

 

Name​

 

 

1.4.1.1.4​

 

Reference to node 1.1.4​

TID 4018​

1.4.1.2​

Analysis Performed​

Temporal Correlation​

TID 4018​

1.4.1.2.1​

Algorithm Name​

"Temporal Change"​

TID 4019​

1.4.1.2.2​

Algorithm Version​

"V0.1"​

TID 4019​

1.4.1.2.3​

 

Reference to node 1.1.2​

TID 4018​

1.4.1.2.4​

 

Reference to node 1.1.4​

TID 4018​

1.4.1.2.5​

 

Reference to node 1.1.6​

TID 4018​

1.4.1.2.6​

 

Reference to node 1.1.8​

TID 4018​

1.4.1.3​

Analysis Performed​

Individual Impression / Recommendation​TID 4018​

 

 

Analysis​

 

1.4.1.3.1​

Algorithm Name​

"Lesion Analyzer"​

TID 4019​

1.4.1.3.2​

Algorithm Version​

"V1.0"​

TID 4019​

1.4.1.3.3​

 

Reference to node 1.1.2​

TID 4018​

1.4.1.3.4​

 

Reference to node 1.1.4​

TID 4018​

1.4.1.3.5​

 

Reference to node 1.1.6​

TID 4018​

1.4.1.3.6​

 

Reference to node 1.1.8​

TID 4018​

1.4.1.4​

Analysis Performed​

Overall Impression / Recommendation​

TID 4018​

 

 

Analysis​

 

1.4.1.4.1​

Algorithm Name​

"Mammogram Analyzer"​

TID 4019​

1.4.1.4.2​

Algorithm Version​

"V1.0"​

TID 4019​

1.4.1.4.3​

 

Reference to node 1.1.2​

TID 4018​

1.4.1.4.4​

 

Reference to node 1.1.4​

TID 4018​

1.4.1.4.5​

 

Reference to node 1.1.6​

TID 4018​

1.4.1.4.6​

 

Reference to node 1.1.8​

TID 4018​

E.4 CAD Operating Point​

Computer-aideddetectionalgorithmsoftencomputeaninternal"CADscore"foreachSingleImageFindingdetectedbythealgorithm.​ In some implementations the algorithms then group the findings into "bins" as a function of their CAD score. The number of bins is a​ function of the algorithm and the manufacturer's implementation, and must be one or more. The bins allow an application that is dis-​ playing CAD marks to provide a number of operating points on the Free-response Receiver-Operating Characteristic (FROC) curve​ for the algorithm, as illustrated in Figure E.4-1.​

- Standard -​

DICOM PS3.17 2020a - Explanatory Information​

Page 109​

SENSITIVITY

FROC Curve of

CAD ALGORITHM

 

4

 

3

 

2

1

OPERATING POINT

 

0

 

FALSE MARKERS /

IMAGE

Figure E.4-1. Free-response Receiver-Operating Characteristic (FROC) curve​

This is accomplished by displaying all CAD marks of Rendering Intent "Presentation Required" or "Presentation Optional" according​ to the following rules:​

•​if the display application's Operating Point is 0, only marks with a Rendering Intent = "Presentation Required" are displayed​

•​if the display application's Operating Point is 1, then marks with a Rendering Intent = "Presentation Required" and marks with a​ Rendering Intent = "Presentation Optional" with a CAD Operating Point = 1 are displayed​

•​if the display application's Operating Point is n, then marks with a Rendering Intent = "Presentation Required" and marks with a​ Rendering Intent = "Presentation Optional" with a CAD Operating Point <= n are displayed​

E.5 Mammography CAD SR and For Processing / For Presentation Images​

IfaMammographyCADSRInstancereferencesDigitalMammographyX-rayImageStorage-ForProcessingInstances,butareview​ workstation has access only to Digital Mammography X-Ray Image Storage - For Presentation Instances, the following steps are re-​ commended in order to display such Mammography CAD SR content with Digital Mammography X-Ray Image - For Presentation​ Instances.​

•​In most scenarios, the Mammography CAD SR Instance is assigned to the same DICOM Patient and Study as the corresponding​ Digital Mammography "For Processing" and "For Presentation" image Instances.​

•​If a workstation has a Mammography CAD SR Instance, but does not have images for the same DICOM Patient and Study, the​ workstation may use the Patient and Study Attributes of the Mammography CAD SR Instance in order to Query/Retrieve the Digital​ Mammography "For Presentation" images for that Patient and Study.​

•​Once a workstation has the Mammography CAD SR Instance and Digital Mammography "For Presentation" image Instances for​ thePatientandStudy,theSourceImageSequence(0008,2112)AttributeofeachDigitalMammography"ForPresentation"Instance​ willreferencethecorrespondingDigitalMammography"ForProcessing"Instance.TheworkstationcanmatchthereferencedDigital​ Mammography "For Processing" Instance to a Digital Mammography "For Processing" Instance referenced in the Mammography​ CAD SR.​

•​TheworkstationshouldcheckforSpatialLocationsPreserved(0028,135A)intheSourceImageSequenceofeachDigitalMammo-​ graphy"ForPresentation"imageInstance,todeterminewhetheritisspatiallyequivalenttothecorrespondingDigitalMammography​ "For Processing" image Instance.​

•​If the value of Spatial Locations Preserved (0028,135A) is YES, then the CAD results should be displayed.​

•​If the value of Spatial Locations Preserved (0028,135A) is NO, then the CAD results should not be displayed.​

•​If Spatial Locations Preserved (0028,135A) is not present, whether or not the images are spatially equivalent is not known. If the​ workstationchoosestoproceedwithattemptingtodisplayCADresults,thencomparetheImageLibrary(seeTID4020“CADImage​ Library Entry”) content item values of the Mammography CAD SR Instance to the associated Attribute values in the corresponding​

- Standard -​

Page 110​

DICOM PS3.17 2020a - Explanatory Information​

Digital Mammography "For Presentation" image Instance. The content items (111044, DCM, "Patient Orientation Row"), (111043,​ DCM, "Patient Orientation Column"), (111026, DCM, "Horizontal Pixel Spacing"), and (111066, DCM, "Vertical Pixel Spacing") may​ be used for this purpose. If the values do not match, the workstation needs to adjust the coordinates of the findings in the Mammo-​ graphy CAD SR content to match the spatial characteristics of the Digital Mammography "For Presentation" image Instance.​

- Standard -​

Источник: https://studfile.net/preview/14585770/

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