Fig. 7

a Regional mean values (RMVs) measured for a lesion in the simple cylindrical phantom with 36 mm radius, TBR = 10, positioned centrally in FOV, for different image reconstruction update numbers. Note that the uncorrected noise-free and noisy datasets overlay each other. b Deviation in RMV from ground truth (in %) following STC with perturbation-estimated PSF or the non-specific PSF, for off-centre lesions and a range of lesion sizes. All lesions had TBR=10, and all images used 200 reconstruction updates