Abstract
A very fast Monte Carlo algorithm for the calculation of the scatter contribution in cone beam computed tomography, implemented within the EGSnrc framework, is presented. Based on the combination of several variance reduction techniques, an efficiency improvement of three orders of magnitude over an analog simulation is obtained. A denoising algorithm applied to the computed scatter distribution is shown to further increase the efficiency of the calculation by about a factor of 10. An iterative scatter correction algorithm is proposed and its feasibility is demonstrated on three different phantoms.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
