DICOM PS3.17 2019c - Explanatory Information

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:

Colon Radiograph as Described in Example 1

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

DICOM PS3.17 2019c - Explanatory Information