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Table 1 Reconstructed spatial resolution

From: Reconstructed spatial resolution and contrast recovery with Bayesian penalized likelihood reconstruction (Q.Clear) for FDG-PET compared to time-of-flight (TOF) with point spread function (PSF)

 Mean ± SD
SBR 8:1
 Q.Clear1503.7 ± 0.2  
 Q.Clear3004.3 ± 0.2  
 Q.Clear4504.7 ± 0.2  
 PSF+TOF4/16 4.2 ± 0.2 
 PSF+TOF2/17 5.1 ± 0.2 
 PSF+TOF4/8 7.0 ± 0.2 
 OSEM+TOF4/16  4.8 ± 0.2
 OSEM+TOF2/17  5.2 ± 0.3
 OSEM+TOF2/8  8.2 ± 0.2
SBR 4:1
 Q.Clear1504.4 ± 0.6  
 Q.Clear3005.0 ± 0.5  
 Q.Clear4505.6 ± 0.4  
 PSF+TOF4/16 4.7 ± 0.2 
 PSF+TOF2/17 5.7 ± 0.6 
 PSF+TOF4/8 7.5 ± 0.4 
 OSEM+TOF4/16  5.1 ± 0.3
 OSEM+TOF2/17  5.8 ± 0.7
 OSEM+TOF2/8  8.8 ± 0.3
SBR 2:1
 Q.Clear1505.1 ± 0.7  
 Q.Clear3005.9 ± 0.8  
 Q.Clear4506.4 ± 0.6  
 PSF+TOF4/16 5.1 ± 0.5 
 PSF+TOF2/17 6.2 ± 0.7 
 PSF+TOF4/8 7.6 ± 0.5 
 OSEM+TOF4/16  5.4 ± 0.7
 OSEM+TOF2/17  6.0 ± 0.9
 OSEM+TOF2/8  9.2 ± 0.6
  1. Mean ± SD of the reconstructed spatial resolution (FWHM) for the three largest spheres is displayed (i.e., diameter of 22, 28, and 37 mm). Increasing SD mirror increasing noise with decreasing SBR