SS.3.2 Example 2: Colon Polyp Detection With Findings

SS.3.2 Example 2: Colon Polyp Detection With Findings (Current)
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A colon CAD device processes a screening colon case with several hundred images, and a colon polyp detected. The colon radiograph resembles:

Figure SS.3-2. Colon 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 SS.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	Colon CAD Report		TID 4120
1.1	Language of Content Item and Descendants	English	TID 1204
1.2	Image Set Properties		TID 4122
1.3	CAD Processing and Findings Summary	All algorithms succeeded; with findings	TID 4121
1.4	Summary of Detections	Succeeded	TID 4120
1.5	Summary of Analyses	Not Attempted	TID 4120

Node	Code Meaning of Concept Name	Code Meaning or Example Value	TID
1.2	Image Set Properties		TID 4122
1.2.1	Frame of Reference UID	1.2.840.114191.1122	TID 4122
1.2.2	Study Instance UID	1.2.840.114191.3344	TID 4122
1.2.3	Study Date	20070924	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

Figure SS.3-4. CAD Processing and Findings Summary Portion of Example 2 Content Tree

Node	Code Meaning of Concept Name	Code Meaning or Example Value	TID
1.3	CAD Processing and Findings Summary	All algorithms succeeded; with findings	TID 4121
1.3.1	Composite Feature	Polyp	TID 4125
1.3.1.1	Rendering Intent	Presentation Required:…	TID 4125
1.3.1.2	Algorithm Name	"Colon Polyp Detector"	TID 4019
1.3.1.3	Algorithm Version	"V1.3"	TID 4019
1.3.1.4	Composite Type	Target content items are related spatially	TID 4126
1.3.1.5	Scope of Feature	Feature detected on multiple images	TID 4126
1.3.1.6	Center	SCOORD3D POINT	TID 4129
1.3.1.7	Outline	SCOORD3D ELLIPSOID	TID 4129
1.3.1.8	Associated Morphology	Pedunculated	TID 4128
1.3.1.9	Diameter	20 mm	TID 1406
1.3.1.9.1	Path	SCOORD3D POLYLINE	TID 1406

Figure SS.3-5. Summary of Detections Portion of Example 2 Content Tree

Node	Code Meaning of Concept Name	Code Meaning or Example Value	TID
1.4	Summary of Detections	Succeeded	TID 4120
1.4.1	Successful Detections		TID 4015
1.4.1.1	Detection Performed	Polyp	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	1.2.840.114191.111222	TID 4017

Node	Code Meaning of Concept Name	Code Meaning or Example Value	TID
1.5	Summary of Analyses	Not Attempted	TID 4120