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Proceedings Paper

Characteristics of suspicious features in CT lung-cancer screening images
Author(s): Philip F. Judy; Yoshiko Kanasaki; Francine L. Jacobson; Chiara Del Frate
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Paper 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.

Paper Details

Date Published: 17 March 2008
PDF: 8 pages
Proc. SPIE 6915, Medical Imaging 2008: Computer-Aided Diagnosis, 69151J (17 March 2008); doi: 10.1117/12.770260
Show Author Affiliations
Philip F. Judy, Brigham and Women's Hospital and Harvard Medical School (United States)
Yoshiko Kanasaki, Tottori Univ. (Japan)
Francine L. Jacobson, Brigham and Women's Hospital and Harvard Medical School (United States)
Chiara Del Frate, Univ. degli Studi di Udine (Italy)

Published in SPIE Proceedings Vol. 6915:
Medical Imaging 2008: Computer-Aided Diagnosis
Maryellen L. Giger; Nico Karssemeijer, Editor(s)

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