Assessment of lesion detectability of Monte Carlo modeling of digital radiography systems

Jonathan S. Boswell; Aldo Badano; Robert M. Gagne; Brandon D. Gallas; Kyle J. Myers

doi:10.1117/12.465612

3 May 2002 Assessment of lesion detectability of Monte Carlo modeling of digital radiography systems

Jonathan S. Boswell, Aldo Badano, Robert M. Gagne, Brandon D. Gallas, Kyle J. Myers

Proceedings Volume 4682, Medical Imaging 2002: Physics of Medical Imaging; (2002) https://doi.org/10.1117/12.465612
Event: Medical Imaging 2002, 2002, San Diego, California, United States

Abstract

Previously we used a simple 2-D model to evaluate the imaging performance of a digital radiographic system while varying input parameters such as transducer blur and signal size. We extend this work using a realistic phosphor simulation to explore the effect of the incident x-ray spectrum and the depth dependence of the point spread function and optical collection efficiency. Initially we investigate one Swank screen type representative of modern powder phosphor design. Images resulting from these simulations are used to get an estimate of the impact of these factors on lesion detectability. Results show that the simple 2-D model gives optimistic estimates of detectability.

Citation Download Citation

Jonathan S. Boswell, Aldo Badano, Robert M. Gagne, Brandon D. Gallas, and Kyle J. Myers "Assessment of lesion detectability of Monte Carlo modeling of digital radiography systems", Proc. SPIE 4682, Medical Imaging 2002: Physics of Medical Imaging, (3 May 2002); https://doi.org/10.1117/12.465612

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