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Usefulness of Computer-Aided Diagnosis Schemes for Vertebral Fractures and Lung Nodules on Chest Radiographs

Satoshi Kasai1,2, Feng Li1, Junji Shiraishi1 and Kunio Doi1

1 Kurt Rossmann Laboratories for Radiologic Image Research, Department of Radiology, University of Chicago, Chicago, IL.
2 Present address: R & D Center, Konica Minolta Medical and Graphic, 2970 Ishikawa-machi, Hachioji City, Tokyo, 192-8505, Japan.


Figure 1
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  		Fig. 1A —85-year-old woman with vertebral fracture. Posteroanterior (A) and lateral (B) chest radiographs show computer output for indicating potential sites of nodules (arrowheads) and vertebral fractures (arrow, B). Circle (B) indicates correct location of vertebral fracture.

 

Figure 2
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  		Fig. 1B —85-year-old woman with vertebral fracture. Posteroanterior (A) and lateral (B) chest radiographs show computer output for indicating potential sites of nodules (arrowheads) and vertebral fractures (arrow, B). Circle (B) indicates correct location of vertebral fracture.

 

Figure 3
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  		Fig. 2 —Graph shows receiver operating characteristic curves for detection of vertebral fractures on lateral chest radiographs without and with computer-aided diagnosis (CAD) (p = 0.002). AUC = area under the receiver operating characteristic curve.

 

Figure 4
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  		Fig. 3 —Graph shows receiver operating characteristic curves for detection of nodules on lateral chest radiographs without and with computer-aided diagnosis (CAD) (p = 0.29). AUC = area under the receiver operating characteristic curve.

 

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