Lesion detectability in digital radiography

Robert M. Gagne; Jonathan S. Boswell; Kyle J. Myers; Guillaume Peter

doi:10.1117/12.430902

28 June 2001 Lesion detectability in digital radiography

Robert M. Gagne, Jonathan S. Boswell, Kyle J. Myers, Guillaume Peter

Proceedings Volume 4320, Medical Imaging 2001: Physics of Medical Imaging; (2001) https://doi.org/10.1117/12.430902
Event: Medical Imaging 2001, 2001, San Diego, CA, United States

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.

Citation Download Citation

Robert M. Gagne, Jonathan S. Boswell, Kyle J. Myers, and Guillaume Peter "Lesion detectability in digital radiography", Proc. SPIE 4320, Medical Imaging 2001: Physics of Medical Imaging, (28 June 2001); https://doi.org/10.1117/12.430902

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