Comparison of observer performance for real and simulated nodules in chest radiography

Ehsan Samei; Michael J. Flynn; Gordon H. Beute; Edward Peterson

doi:10.1117/12.236861

27 March 1996 Comparison of observer performance for real and simulated nodules in chest radiography

Ehsan Samei, Michael J. Flynn, Gordon H. Beute, Edward Peterson

Proceedings Volume 2712, Medical Imaging 1996: Image Perception; (1996) https://doi.org/10.1117/12.236861
Event: Medical Imaging 1996, 1996, Newport Beach, CA, United States

Abstract

Observer performance studies are frequently performed to evaluate and compare various radiographic techniques with regard to detection of subtle lung nodules using simulated nodules. The fidelity of the simulated nodules and their equivalency to the real lesions have not been investigated in prior studies. We have developed simulated Teflon nodules with contrast characteristics emulating real nodules found in a database of graded chest radiographs. This paper presents a summary of the method used to make the phantoms, describes our technique for positioning the phantoms in human subject studies, and reports the preliminary results of an observer performance study for detection of the simulated nodules compared to real lesions.

Citation Download Citation

Ehsan Samei, Michael J. Flynn, Gordon H. Beute, and Edward Peterson "Comparison of observer performance for real and simulated nodules in chest radiography", Proc. SPIE 2712, Medical Imaging 1996: Image Perception, (27 March 1996); https://doi.org/10.1117/12.236861

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