Physics – Instrumentation and Detectors
Scientific paper
2005-07-25
Dans Open international conference on modeling and simulation (2005) 415-429
Physics
Instrumentation and Detectors
15 pages, 9 figures, 2 tables
Scientific paper
In Single Photon Emission Computed Tomography (SPECT), 3D images usually reconstructed by performing a set of bidimensional (2D) analytical or iterative reconstructions can also be reconstructed using an iterative reconstruction algorithm involving a 3D projector. Accurate Monte Carlo (MC) simulations modeling all the physical effects that affect the imaging process can be used to estimate this projector. However, the accuracy of the projector is affected by the stochastic nature of MC simulations. In this paper, we study the accuracy of the reconstructed images with respect to the number of simulated histories used to estimate the MC projector. Furthermore, we study the impact of applying the bootstrapping technique when estimating the projector
Bitar Z. El
Breton Vincent V.
Buvat I.
Hill David
Lazaro D.
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