Abstract
Partial Volume Effects (PVE) represent a major source of degradation in PET imaging, introducing large biases especially for small structures. To correct for these effects, numerous methods have been proposed, working on reconstructed images or incorporated within the reconstruction process. For the latest case, most existing studies focus on the accurate determination of the system point spread function (PSF), using either direct physical measurements [1] or analytical [2] and Monte Carlo based estimations [3]. Within this implementation convolution by the PSF is performed either at the projection step only [4], or at both projection and backprojection steps [3].
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