F.3.2 Example 2: Lung Nodule Detection With Findings and Anatomy/pathology Interpretation
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### F.3.2 Example 2: Lung Nodule Detection With Findings and Anatomy/pathology Interpretation

A chest CAD device processes a screening chest case with one image, and a lung nodule detected. The chest radiograph resembles:

Figure F.3-2. Chest Radiograph 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 F.3-3. Content Tree Root of Example 2 Content Tree

The content tree structure would resemble:

Node | Code Meaning of Concept Name | Code Meaning or Example Value | TID
--- | --- | --- | ---
1 | Chest CAD Report |  | TID 4100
1.1 | Image Library |  | TID 4100
1.2 | CAD Processing and Findings Summary | All algorithms succeeded; with findings | TID 4101
1.3 | Summary of Detections | Succeeded | TID 4100
1.4 | Summary of Analyses | Not Attempted | TID 4100

Figure F.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 4100
1.1.1 |  | IMAGE 1 | TID 4020
1.1.1.1 | Image View | Postero-anterior | TID 4020
1.1.1.2 | Study Date | 19990101 | TID 4020

Figure F.3-5. CAD Processing and Findings Summary Portion 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 4101
1.2.1 | Single Image Finding | Abnormal Opacity | TID 4104
1.2.1.1 | Single Image Finding Modifier | Nodule | TID 4104
1.2.1.2 | Rendering Intent | Presentation Required:… | TID 4104
1.2.1.3 | Algorithm Name | "Lung Nodule Detector" | TID 4019
1.2.1.4 | Algorithm Version | "V1.3" | TID 4019
1.2.1.5 | Center | POINT | TID 4107
1.2.1.5.1 |  | Reference to Node 1.1.1 | TID 4107
1.2.1.6 | Outline | POLYLINE | TID 4107
1.2.1.6.1 |  | Reference to Node 1.1.1 | TID 4107
1.2.1.7 | Diameter | 2 cm | TID 1400
1.2.1.7.1 | Path | POLYLINE | TID 1400
1.2.1.7.1.1 |  | Reference to Node 1.1.1 | TID 1400

Figure F.3-6. Summary of Detections Portion of Example 2 Content Tree

Node | Code Meaning of Concept Name | Code Meaning or Example Value | TID
--- | --- | --- | ---
1.3 | Summary of Detections | Succeeded | TID 4100
1.3.1 | Successful Detections |  | TID 4015
1.3.1.1 | Detection Performed | Nodule | TID 4017
1.3.1.1.1 | Algorithm Name | "Lung Nodule Detector" | TID 4019
1.3.1.1.2 | Algorithm Version | "V1.3" | TID 4019
1.3.1.1.3 |  | Reference to node 1.1.1 | TID 4017

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