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Proceedings Paper

Lesion detectability in digital radiography
Author(s): Robert M. Gagne; Jonathan S. Boswell; Kyle J. Myers; Guillaume Peter
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Paper Abstract

The usefulness of Fourier-based measures of imaging performance has come into question for the evaluation of digital imaging systems. Figures of merit such as detective quantum efficiency are relevant for linear, shift-invariant systems with stationary noise. However, no digital imaging system is shift invariant, and realistic images do not satisfy the stationarity condition. Our methods for task- based evaluation of imaging systems, based on lesion detectability, do not require such assumptions. We have computed the performance of Hotelling and nonprewhitening matched-filter observers for the task of lesion detection in digital radiography.

Paper Details

Date Published: 28 June 2001
PDF: 10 pages
Proc. SPIE 4320, Medical Imaging 2001: Physics of Medical Imaging, (28 June 2001); doi: 10.1117/12.430902
Show Author Affiliations
Robert M. Gagne, FDA Ctr. for Devices and Radiological Health (United States)
Jonathan S. Boswell, FDA Ctr. for Devices and Radiological Health (United States)
Kyle J. Myers, FDA Ctr. for Devices and Radiological Health (United States)
Guillaume Peter, FDA Ctr. for Devices and Radiological Health (United States)


Published in SPIE Proceedings Vol. 4320:
Medical Imaging 2001: Physics of Medical Imaging
Larry E. Antonuk; Martin Joel Yaffe, Editor(s)

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