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Table 4 FWHM defined before reconstruction for intrinsic spatial resolution along all dimensions for five transverse positions, for both simulated (Sim.) and experimental (Exp.) data

From: Monte Carlo simulation of digital photon counting PET

Position (cm) Sim. FWHM (mm) Exp. FWHM (mm) Abs. diff. (mm)
  X Y Z X Y Z X Y Z
(0,1,0) 1.73 1.48 1.91 1.93 1.71 2.37 − 0.20 − 0.23 − 0.46
(0,10,0) 1.87 1.97 2.81 1.97 2.09 3.51 − 0.10 − 0.12 − 0.70
(0,20,0) 1.77 2.19 2.99 1.90 2.18 3.37 − 0.13 0.01 − 0.38
(10,0,0) 1.82 1.69 2.76 1.95 1.87 3.50 − 0.13 − 0.18 − 0.74
(20,0,0) 1.77 1.73 3.01 1.89 1.90 3.40 − 0.13 − 0.17 − 0.40
  1. The columns to the right give their absolute difference