Analytical scatter estimation for cone-beam computed tomography

Harry R. Ingleby; Idris A. Elbakri; Daniel W. Rickey; Stephen Pistorius

doi:10.1117/12.813804

13 March 2009 Analytical scatter estimation for cone-beam computed tomography

Harry R. Ingleby, Idris A. Elbakri, Daniel W. Rickey, Stephen Pistorius

Proceedings Volume 7258, Medical Imaging 2009: Physics of Medical Imaging; 725839 (2009) https://doi.org/10.1117/12.813804
Event: SPIE Medical Imaging, 2009, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

We are investigating methods for computational scatter estimation for scatter correction in cone-beam computed tomography. We have developed an analytical method for estimating single scatter. The paper discusses our analytical method and its validation using Monte Carlo simulations. The paper extends previous results to include both Compton and Rayleigh single scatter interactions. The paper also discusses the potential for hybrid scatter estimation, in which empirical measurements of the total scatter signal in the collimator shadow may be used to augment computational single scatter estimates and thus account for multiple scatter.

Citation Download Citation

Harry R. Ingleby, Idris A. Elbakri, Daniel W. Rickey, and Stephen Pistorius "Analytical scatter estimation for cone-beam computed tomography", Proc. SPIE 7258, Medical Imaging 2009: Physics of Medical Imaging, 725839 (13 March 2009); https://doi.org/10.1117/12.813804

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