Fig. 3
From: Optimization of brain PET imaging for a multicentre trial: the French CATI experience
Jaszczak phantom results. Recovery coefficients (RC) obtained with routine and optimized acquisition and reconstruction parameters for the two smallest hot spheres, for all centres (upper row) and for the subset of 18 centres without PSF modelling (lower row). P values represent the significant test results either for comparison of means (Wilcoxon test) or for comparison of standard deviations (Pitman test)