Analytical scatter estimation for cone-beam computed tomography
SPIE ProceedingsMedical Imaging 2009: Physics of Medical Imaging(2009)
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.
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Key words
computed tomography,monte carlo simulation
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