Characteristics of suspicious features in CT lung-cancer screening images

Philip F. Judy; Yoshiko Kanasaki; Francine L. Jacobson; Chiara Del Frate

doi:10.1117/12.770260

17 March 2008 Characteristics of suspicious features in CT lung-cancer screening images

Philip F. Judy, Yoshiko Kanasaki, Francine L. Jacobson, Chiara Del Frate

Proceedings Volume 6915, Medical Imaging 2008: Computer-Aided Diagnosis; 69151J (2008) https://doi.org/10.1117/12.770260
Event: Medical Imaging, 2008, San Diego, California, United States

Abstract

The high-frequency of suspicious non-malignant image features limit the use of CT lung-cancer screening of asymptomatic individuals. A reference database of 6 radiologists' localizations of suspicious image features was created. The frequency, sizes, shapes, margins and degree of calcification of the images features were determined. The radiologist exam report identified 50% findings reported on 5 or 6 occasions, while the CAD system identified 40%. The radiologist exam report missed 80% to 50% of suspicious, retrospectively identified in CT lung cancer images. Many were less than 4 mm. Radiologists can use a lenient criterion in experiments of previously read screening cases.

Citation Download Citation

Philip F. Judy, Yoshiko Kanasaki, Francine L. Jacobson, and Chiara Del Frate "Characteristics of suspicious features in CT lung-cancer screening images", Proc. SPIE 6915, Medical Imaging 2008: Computer-Aided Diagnosis, 69151J (17 March 2008); https://doi.org/10.1117/12.770260

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