Fig. 3From: Noise reduction using a Bayesian penalized-likelihood reconstruction algorithm on a time-of-flight PET-CT scannerComparison in terms of contrast recovery as a function of sphere size between (top) TOF-OSEM (3 iterations, 16 subsets, post-filter 5.0 mm and PSF) and (bottom) BSREM with β = 750 (including TOF and PSF) for different counting statistics and contrast ratiosBack to article page