DICOM PS3.17 2021c - Explanatory Information

SS.3 Colon CAD SR Examples (Current)
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## SS.3 Colon CAD SR Examples

The following is a simple and non-comprehensive illustration of an encoding of the Colon CAD SR IOD for colon computer aided detection results. For brevity, some mandatory content items are not included.

### SS.3.1 Example 1: Colon Polyp Detection With No Findings

A colon CAD device processes a typical screening colon case, i.e., there are several hundred images and no polyp findings. Colon CAD runs polyp detection successfully and finds nothing.

The colon radiograph resembles:

Figure SS.3-1. Colon Radiograph as Described in Example 1

The content tree structure would resemble:

Node | Code Meaning of Concept Name | Code Meaning or Example Value | TID
--- | --- | --- | ---
1 | Colon CAD Report |  | TID 4120
1.1 | Language of Content Item and Descendants | English | TID 1204
1.2 | Image Set Properties |  | TID 4122
1.2.1 | Frame of Reference UID | 1.2.840.114191.123 | TID 4122
1.2.2 | Study Instance UID | 1.2.840.114191.456 | TID 4122
1.2.3 | Study Date | 20060924 | TID 4122
1.2.4 | Study Time | 090807 | TID 4122
1.2.5 | Modality | CT | TID 4122
1.2.6 | Horizontal Pixel Spacing | 0.80 mm | TID 4122
1.2.7 | Vertical Pixel Spacing | 0.80 mm | TID 4122
1.2.8 | Slice Thickness | 2.5 mm | TID 4122
1.2.9 | Spacing between slices | 1.5 mm | TID 4122
1.2.10 | Recumbent Patient Position with respect to gravity | Prone | TID 4122
1.3 | CAD Processing and Findings Summary | All algorithms succeeded; without findings | TID 4121
1.4 | Summary of Detections | Succeeded | TID 4120
1.4.1 | Successful Detections |  | TID 4015
1.4.1.1 | Detection Performed | Nodule | TID 4017
1.4.1.1.1 | Algorithm Name | "Colon Polyp Detector" | TID 4019
1.4.1.1.2 | Algorithm Version | "V1.3" | TID 4019
1.4.1.1.3 | Series Instance UID | 1.2.840.114191.789 | TID 4017
1.5 | Summary of Analyses | Not Attempted | TID 4120

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SS.2 Colon CAD SR Observation Context Encoding | Home | SS.3.2 Example 2: Colon Polyp Detection With Findings

DICOM PS3.17 2021c - Explanatory Information