F.3.4 Example 4: Lung Nodule Detection in Chest Radiograph, Spatially Correlated with CT

The patient in Example 3 is called back for CT to confirm the Lung Nodule found in Example 3. The patient undergoes CT of the Thorax and the initial chest radiograph and CT slices are sent to a more comprehensive CAD device for processing. Findings are detected and analyses are performed that correlate findings from the two data sets. Portions of the prior CAD report (Example 3) are incorporated into this report.

PROJECTION CHEST (PRIOR) [pic]
CT SLICES (CURRENT) [pic]Slice 103 [pic]Slice 104 [pic]Slice 105

Figure F.3-9: Chest radiograph and CT slice as described in Example 4

Italicized entries ( xxx ) in the following table denote references to or by-value inclusion of content tree items reused from the prior Chest CAD SR instance (Example 3).

Node Code Meaning of Concept Name Code Meaning of Example Value TID
1 Chest CAD Report 4100
1.1 Language of Content Item and Descendants English 1204
1.2 Image Library 4100
1.3 CAD Processing and Findings Summary All algorithms succeeded; with findings 4101
1.4 Summary of Detections Succeeded 4100
1.5 Summary of Analyses Succeeded 4100

While the Image Library contains references to content tree items reused from the prior Chest CAD SR instance, the images are actually used in the CAD analysis and are therefore not italicized as indicated above.

Node Code Meaning of Concept Name Code Meaning of Example Value TID
1.2 Image Library 4100
1.2.1 IMAGE 1 4020
1.2.1.1 Image View Postero-anterior 4020
1.2.1.2 Study Date 20000101 4020

Most recent examination content:

Node Code Meaning of Concept Name Code Meaning of Example Value TID
1.3 CAD Processing and Findings Summary All algorithms succeeded; with findings 4101
1.3.1 Composite Feature Abnormal opacity 4102

Node Code Meaning of Concept Name Code Meaning of Example Value TID
1.3.1 Composite Feature Abnormal opacity 4102
1.3.1.1 Composite Feature Modifier Nodule 4102
1.3.1.2 Rendering Intent Presentation Required: … 4102
1.3.1.3 Tracking Identifier “Watchlist #1” 4108
1.3.1.4 Algorithm Name “Chest/CT Correlator” 4019
1.3.1.5 Algorithm Version “V2.1 4019
1.3.1.6 Composite type Target content items are related spatially 4103
1.3.1.7 Scope of Feature Feature detected on images from multiple modalities 4103
1.3.1.8 Diameter 4 cm 1400
1.3.1.8.1 Path 1400
1.3.1.8.1.1 IMAGE 3 [CT slice 104] 1400
1.3.1.9 Volume estimated from single 2D region 3.2 cm3 1402
1.3.1.9.1 Perimeter Outline 1402
1.3.1.9.1.1 IMAGE 3 [CT slice 104] 1402
1.3.1.10 Size Descriptor Small 4105
1.3.1.11 Border Shape Lobulated 4105
1.3.1.12 Location in Chest Mid lobe 4105
1.3.1.13 Laterality Right 4105
1.3.1.14 Composite Feature Abnormal opacity 4102
1.3.1.15 Single Image Finding Abnormal opacity 4104

Node Code Meaning of Concept Name Code Meaning of Example Value TID
1.3.1.14 Composite Feature Abnormal opacity 4102
1.3.1.14.1 Composite Feature Modifier Nodule 4102
1.3.1.14.2 Rendering Intent Presentation Required: … 4102
1.3.1.14.3 Tracking Identifier “Nodule #1” 4108
1.3.1.14.4 Algorithm Name “Nodule Builder” 4019
1.3.1.14.5 Algorithm Version “V1.4 4019
1.3.1.14.6 Composite type Target content items are related spatially 4103
1.3.1.14.7 Scope of Feature Feature detected on multiple images 4103
1.3.1.14.8 Diameter 4 cm 1400
1.3.1.14.9 Volume estimated from single 2D region 3.2 cm3 1402
1.3.1.14.10 Single Image Finding Abnormal opacity 4104
1.3.1.14.11 Single Image Finding Abnormal opacity 4104
1.3.1.14.12 Single Image Finding Abnormal opacity 4104

Node Code Meaning of Concept Name Code Meaning of Example Value TID
1.3.1.14.10 Single Image Finding Abnormal opacity 4104
1.3.1.14.10.1 Single Image Finding Modifier Nodule 4104
1.3.1.14.10.2 Rendering Intent Presentation Required: … 4104
1.3.1.14.10.3 Tracking Identifier “Detection #1” 4108
1.3.1.14.10.4 Algorithm Name “CT Nodule Detector” 4019
1.3.1.14.10.5 Algorithm Version “V2.5 4019
1.3.1.14.10.6 Center POINT 4107
1.3.1.14.10.6.1 IMAGE 2 [CT slice 103] 4107
1.3.1.14.10.7 Outline POLYLINE 4107
1.3.1.14.10.7.1 IMAGE 2 [CT slice 103] 4107

Node Code Meaning of Concept Name Code Meaning of Example Value TID
1.3.1.14.11 Single Image Finding Abnormal opacity 4104
1.3.1.14.11.1 Single Image Finding Modifier Nodule 4104
1.3.1.14.11.2 Rendering Intent Presentation Required: … 4104
1.3.1.14.11.3 Tracking Identifier “Detection #2” 4108
1.3.1.14.11.4 Algorithm Name “CT Nodule Detector” 4019
1.3.1.14.11.5 Algorithm Version “V2.5 4019
1.3.1.14.11.6 Center POINT 4107
1.3.1.14.11.6.1 IMAGE 3 [CT slice 104] 4107
1.3.1.14.11.7 Outline POLYLINE 4107
1.3.1.14.11.7.1 IMAGE 3 [CT slice 104] 4107

Node Code Meaning of Concept Name Code Meaning of Example Value TID
1.3.1.14.12 Single Image Finding Abnormal opacity 4104
1.3.1.14.12.1 Single Image Finding Modifier Nodule 4104
1.3.1.14.12.2 Rendering Intent Presentation Required: … 4104
1.3.1.14.12.3 Tracking Identifier “Detection #3” 4108
1.3.1.14.12.4 Algorithm Name “CT Nodule Detector” 4019
1.3.1.14.12.5 Algorithm Version “V2.5 4019
1.3.1.14.12.6 Center POINT 4107
1.3.1.14.12.6.1 IMAGE 4 [CT slice 105] 4107
1.3.1.14.12.7 Outline POLYLINE 4107
1.3.1.14.12.7.1 IMAGE 4 [CT slice 105] 4107

Node Code Meaning of Concept Name Code Meaning of Example Value TID
1.3.1.15 Single Image Finding Abnormal opacity 4104
1.3.1.15.1 Single Image Finding Modifier Nodule 4104
1.3.1.15.2 Rendering Intent Presentation Required: … 4104
1.3.1.15.3 Tracking Identifier “Watchlist #1” 4108
1.3.1.15.4 [Observation Context content items] 4022
1.3.1.15.5 Algorithm Name “Lung Nodule Detector” 4019
1.3.1.15.6 Algorithm Version “V1.3 4019
1.3.1.15.7 Center POINT 4107
1.3.1.15.7.1 Reference to node 1.2.1 4107
1.3.1.15.8 Outline POLYLINE 4107
1.3.1.15.8.1 Reference to node 1.2.1 4107
1.3.1.15.9 Diameter 4 cm 1400
1.3.1.15.9.1 Path POLYLINE 1400
1.3.1.15.9.1.1 Reference to Node 1.2.1 1400

Node Code Meaning of Concept Name Code Meaning of Example Value TID
1.4 Summary of Detections Succeeded 4100
1.4.1 Successful Detections 4015
1.4.1.1 Detection Performed Nodule 4017
1.4.1.1.1 Algorithm Name “CT Nodule Detector” 4019
1.4.1.1.2 Algorithm Version “V2.5 4019
1.4.1.1.3 IMAGE 2 [CT slice 103] 4017
1.4.1.1.4 IMAGE 3 [CT slice 104] 4017
1.4.1.1.5 IMAGE 4 [CT slice 105] 4017
1.5 Summary of Analyses Succeeded 4100
1.5.1 Successful Analyses 4016
1.5.1.1 Analysis Performed “Spatial colocation analysis” 4018
1.5.1.1.1 Algorithm Name “Chest/CT Correlator” 4019
1.5.1.1.2 Algorithm Version “V2.1 4019
1.5.1.1.3 Reference to node 1.2.1 4018
1.5.1.1.4 IMAGE 2 [CT slice 103] 4018
1.5.1.1.5 IMAGE 3 [CT slice 104] 4018
1.5.1.1.6 IMAGE 4 [CT slice 105] 4018
1.5.1.2 Analysis Performed “Spatial colocation analysis” 4018
1.5.1.2.1 Algorithm Name “Nodule Builder” 4019
1.5.1.2.2 Algorithm Version “V1.4 4019
1.5.1.2.3 IMAGE 2 [CT slice 103] 4018
1.5.1.2.4 IMAGE 3 [CT slice 104] 4018
1.5.1.2.5 IMAGE 4 [CT slice 105] 4018