DICOM PS3.17 2021d - Explanatory Information

E.3.2 Example 2: Calcification and Mass Detection With Findings (Current)
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### E.3.2 Example 2: Calcification and Mass Detection With Findings

A mammography CAD device processes a screening mammography case with four films and a mass in the left breast. Mammography CAD runs both density and calcification detection successfully. It finds two densities in the LCC, one density in the LMLO, a cluster of two calcifications in the RCC and a cluster of 20 calcifications in the RMLO. It performs two clustering algorithms. One identifies individual calcifications and then clusters them, and the second simply detects calcification clusters. It performs mass correlation and combines one of the LCC densities and the LMLO density into a mass; the other LCC density is flagged Not for Presentation, therefore not intended for display to the end-user. The mammograms resemble:

Figure E.3-2. Mammograms as Described in Example 2

The content tree structure in this example is complex. Structural illustrations of portions of the content tree are placed within the content tree table to show the relationships of data within the tree. Some content items are duplicated (and shown in boldface) to facilitate use of the diagrams.

Figure E.3-3. Content Tree Root of Example 2 Content Tree

Node | Code Meaning of Concept Name | Code Meaning or Example Value | TID
--- | --- | --- | ---
1 | Mammography CAD Report |  | TID 4000
1.1 | Image Library |  | TID 4000
1.2 | CAD Processing and Findings Summary | All algorithms succeeded; with findings | TID 4001
1.3 | Summary of Detections | Succeeded | TID 4000
1.4 | Summary of Analyses | Succeeded | TID 4000

Figure E.3-4. Image Library Branch of Example 2 Content Tree

Node | Code Meaning of Concept Name | Code Meaning or Example Value | TID
--- | --- | --- | ---
1.1 | Image Library |  | TID 4000
1.1.1 |  | IMAGE 1 | TID 4020
1.1.1.1 | Image Laterality | Right | TID 4020
1.1.1.2 | Image View | Cranio-caudal | TID 4020
1.1.1.3 | Study Date | 19990101 | TID 4020
1.1.2 |  | IMAGE 2 | TID 4020
1.1.2.1 | Image Laterality | Left | TID 4020
1.1.2.2 | Image View | Cranio-caudal | TID 4020
1.1.2.3 | Study Date | 19990101 | TID 4020
1.1.3 |  | IMAGE 3 | TID 4020
1.1.3.1 | Image Laterality | Right | TID 4020
1.1.3.2 | Image View | Medio-lateral oblique | TID 4020
1.1.3.3 | Study Date | 19990101 | TID 4020
1.1.4 |  | IMAGE 4 | TID 4020
1.1.4.1 | Image Laterality | Left | TID 4020
1.1.4.2 | Image View | Medio-lateral oblique | TID 4020
1.1.4.3 | Study Date | 19990101 | TID 4020

Figure E.3-5. CAD Processing and Findings Summary Bifurcation of Example 2 Content Tree

Node | Code Meaning of Concept Name | Code Meaning or Example Value | TID
--- | --- | --- | ---
1.2 | CAD Processing and Findings Summary | All algorithms succeeded; with findings | TID 4001
1.2.1 | Individual Impression/Recommendation |  | TID 4003
1.2.2 | Individual Impression/Recommendation |  | TID 4003
1.2.3 | Individual Impression/Recommendation |  | TID 4003
1.2.4 | Individual Impression/Recommendation |  | TID 4003

Figure E.3-6. Individual Impression/Recommendation 1.2.1 from Example 2 Content Tree

Node | Code Meaning of Concept Name | Code Meaning or Example Value | TID
--- | --- | --- | ---
1.2.1 | Individual Impression/Recommendation |  | TID 4003
1.2.1.1 | Rendering Intent | Presentation Required | TID 4003
1.2.1.2 | Composite Feature | Mass | TID 4004
1.2.1.2.1 | Rendering Intent | Presentation Required | TID 4004
1.2.1.2.2 | Composite type | Target content items are related spatially | TID 4005
1.2.1.2.3 | Scope of Feature | Feature was detected on multiple images | TID 4005
1.2.1.2.4 | Algorithm Name | "Mass Maker" | TID 4019
1.2.1.2.5 | Algorithm Version | "V1.9" | TID 4019
1.2.1.2.6 | Single Image Finding | Mammography breast density | TID 4006
1.2.1.2.7 | Single Image Finding | Mammography breast density | TID 4006

Figure E.3-7. Single Image Finding Density 1.2.1.2.6 from Example 2 Content Tree

Node | Code Meaning of Concept Name | Code Meaning or Example Value | TID
--- | --- | --- | ---
1.2.1.2.6 | Single Image Finding | Mammography breast density | TID 4006
1.2.1.2.6.1 | Rendering Intent | Presentation Required | TID 4006
1.2.1.2.6.2 | Algorithm Name | "Density Detector" | TID 4019
1.2.1.2.6.3 | Algorithm Version | "V3.7" | TID 4019
1.2.1.2.6.4 | Center | POINT | TID 4021
1.2.1.2.6.4.1 |  | Reference to node 1.1.2 | TID 4021
1.2.1.2.6.5 | Outline | SCOORD | TID 4021
1.2.1.2.6.5.1 |  | Reference to node 1.1.2 | TID 4021

Figure E.3-8. Single Image Finding Density 1.2.1.2.7 from Example 2 Content Tree

Node | Code Meaning of Concept Name | Code Meaning or Example Value | TID
--- | --- | --- | ---
1.2.1.2.7 | Single Image Finding | Mammography breast density | TID 4006
1.2.1.2.7.1 | Rendering Intent | Presentation Required | TID 4006
1.2.1.2.7.2 | Algorithm Name | "Density Detector" | TID 4019
1.2.1.2.7.3 | Algorithm Version | "V3.7" | TID 4019
1.2.1.2.7.4 | Center | POINT | TID 4021
1.2.1.2.7.4.1 |  | Reference to node 1.1.4 | TID 4021
1.2.1.2.7.5 | Outline | SCOORD | TID 4021
1.2.1.2.7.5.1 |  | Reference to node 1.1.4 | TID 4021
1.2.1.2.7.6 | Area of Defined Region | 1 cm2 | TID 1401
1.2.1.2.7.6.1 | Area Outline | SCOORD | TID 1401
1.2.1.2.7.6.1.1 |  | Reference to node 1.1.4 | TID 1401

Figure E.3-9. Individual Impression/Recommendation 1.2.2 from Example 2 Content Tree

Node | Code Meaning of Concept Name | Code Meaning or Example Value | TID
--- | --- | --- | ---
1.2.2 | Individual Impression/Recommendation |  | TID 4003
1.2.2.1 | Rendering Intent | Not for Presentation | TID 4003
1.2.2.2 | Single Image Finding | Mammography breast density | TID 4006
1.2.2.2.1 | Rendering Intent | Not for Presentation | TID 4006
1.2.2.2.2 | Algorithm Name | "Density Detector" | TID 4019
1.2.2.2.3 | Algorithm Version | "V3.7" | TID 4019
1.2.2.2.4 | Center | POINT | TID 4021
1.2.2.2.4.1 |  | Reference to node 1.1.2 | TID 4021
1.2.2.2.5 | Outline | SCOORD | TID 4021
1.2.2.2.5.1 |  | Reference to node 1.1.2 | TID 4021

Figure E.3-10. Individual Impression/Recommendation 1.2.3 from Example 2 Content Tree

Node | Code Meaning of Concept Name | Code Meaning or Example Value | TID
--- | --- | --- | ---
1.2.3 | Individual Impression/Recommendation |  | TID 4003
1.2.3.1 | Rendering Intent | Presentation Required | TID 4003
1.2.3.2 | Single Image Finding | Calcification Cluster | TID 4006
1.2.3.2.1 | Rendering Intent | Presentation Required | TID 4006
1.2.3.2.2 | Algorithm Name | "Calc Cluster Detector" | TID 4019
1.2.3.2.3 | Algorithm Version | "V2.4" | TID 4019
1.2.3.2.4 | Center | POINT | TID 4021
1.2.3.2.4.1 |  | Reference to node 1.1.3 | TID 4021
1.2.3.2.5 | Outline | SCOORD | TID 4021
1.2.3.2.5.1 |  | Reference to node 1.1.3 | TID 4021
1.2.3.2.6 | Number of Calcifications | 20 | TID 4010

Figure E.3-11. Individual Impression/Recommendation 1.2.4 from Example 2 Content Tree

Node | Code Meaning of Concept Name | Code Meaning or Example Value | TID
--- | --- | --- | ---
1.2.4 | Individual Impression/Recommendation |  | TID 4003
1.2.4.1 | Rendering Intent | Presentation Required | TID 4003
1.2.4.2 | Single Image Finding | Calcification Cluster | TID 4006
1.2.4.2.1 | Rendering Intent | Presentation Required | TID 4006
1.2.4.2.2 | Algorithm Name | "Calc Clustering" | TID 4019
1.2.4.2.3 | Algorithm Version | "V2.4" | TID 4019
1.2.4.2.4 | Center | POINT | TID 4021
1.2.4.2.4.1 |  | Reference to node 1.1.1 | TID 4021
1.2.4.2.5 | Outline | SCOORD | TID 4021
1.2.4.2.5.1 |  | Reference to node 1.1.1 | TID 4021
1.2.4.2.6 | Number of Calcifications | 2 | TID 4010

Figure E.3-12. Single Image Finding 1.2.4.2.7 from Example 2 Content Tree

Node | Code Meaning of Concept Name | Code Meaning or Example Value | TID
--- | --- | --- | ---
1.2.4.2.7 | Single Image Finding | Individual Calcification | TID 4006
1.2.4.2.7.1 | Rendering Intent | Presentation Optional | TID 4006
1.2.4.2.7.2 | Algorithm Name | "Calc Detector" | TID 4019
1.2.4.2.7.3 | Algorithm Version | "V2.4" | TID 4019
1.2.4.2.7.4 | Center | POINT | TID 4021
1.2.4.2.7.4.1 |  | Reference to node 1.1.1 | TID 4021
1.2.4.2.7.5 | Outline | SCOORD | TID 4021
1.2.4.2.7.5.1 |  | Reference to node 1.1.1 | TID 4021

Figure E.3-13. Single Image Finding 1.2.4.2.8 from Example 2 Content Tree

Node | Code Meaning of Concept Name | Code Meaning or Example Value | TID
--- | --- | --- | ---
1.2.4.2.8 | Single Image Finding | Individual Calcification | TID 4006
1.2.4.2.8.1 | Rendering Intent | Presentation Optional | TID 4006
1.2.4.2.8.2 | Algorithm Name | "Calc Detector" | TID 4019
1.2.4.2.8.3 | Algorithm Version | "V2.4" | TID 4019
1.2.4.2.8.4 | Center | POINT | TID 4021
1.2.4.2.8.4.1 |  | Reference to node 1.1.1 | TID 4021
1.2.4.2.8.5 | Outline | SCOORD | TID 4021
1.2.4.2.8.5.1 |  | Reference to node 1.1.1 | TID 4021

Figure E.3-14. Summary of Detections Branch of Example 2 Content Tree

Node | Code Meaning of Concept Name | Code Meaning or Example Value | TID
--- | --- | --- | ---
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

Figure E.3-15. Summary of Analyses Branch of Example 2 Content Tree

Node | Code Meaning of Concept Name | Code Meaning or Example Value | TID
--- | --- | --- | ---
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
1.4.1.1.4 |  | Reference to node 1.1.4 | TID 4018

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DICOM PS3.17 2021d - Explanatory Information