Surface Normal Overlap: A Computer-Aided Detection Algorithm With Application to Colonic Polyps and Lung Nodules in Helical CT.

Autor: Paik, David S., Beaulieu, Christopher F., Rubin, Geoffrey D., Acar, Burak, Jeffrey Jr., R. Brooke, Yee, Judy, Dey, Joyoni, Napel, Sandy
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Zdroj: IEEE Transactions on Medical Imaging; Jun2004, Vol. 23 Issue 6, p661-675, 15p
Abstrakt: We developed a novel computer-aided detection (CAD) algorithm called the surface normal overlap method that we applied to colonic polyp detection and lung nodule detection in helical computed tomography (CT) images. We demonstrate some of the theoretical aspects of this algorithm using a statistical shape model. The algorithm was then optimized on simulated CT data and evaluated using a perlesion cross-validation on 8 CT colonography datasets and on S chest CT datasets. It is able to achieve 100% sensitivity for colonic polyps 10 mm and larger at 7.0 false positives (FPs)/dataset and 90% sensitivity for solid lung nodules 6 nun and larger at 5.6 FP/dataset. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index