Fig. 5

Comparison of noise levels in patient studies. a.) Representative ¹⁸F-FDG PET/CT patient study reconstructed by OSEM+PSF and BPL with a β of 450, 550 and 700. The two BPs are indicated at which acquisition time changes from 1 min/bed (BP2) to 2½ min/bed (BP3). b.) Noise levels per slice at the BPs of the study shown in A.). Indicated are the BPs and overlap regions. c.) Averaged noise levels of multiple patient studies (N = 8) at the transition of BPs taken at 1 min/bed (BP1 & BP2) to 2½ min/bed (BP3)