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Table 1 Phantom recovery data for unfiltered images

From: Impact of point spread function modelling and time of flight on FDG uptake measurements in lung lesions using alternative filtering strategies

  Sphere size Background voxel COV
  10 mm 13 mm 17 mm 22 mm 28 mm 37 mm
OSEM (%) 106 (19.5) 136 (20.2) 155 (19.8) 168 (18.0) 184 (9.5) 186 (8.2) 46.3 (0.51)
TOF (%) 90 (12.0) 123 (11.2) 132 (7.2) 144 (11.0) 157 (11.4) 167 (13.7) 37.4 (0.48)
HD (%) 99 (13.7) 155 (7.2) 144 (6.2) 145 (5.3) 144 (7.1) 147 (6.0) 18.2 (0.32)
UHD (%) 103 (9.0) 151 (8.8) 141 (5.9) 136 (4.5) 135 (5.9) 138 (5.6) 14.9 (0.46)
  1. SUVmax in each of the image quality spheres expressed as a percentage of the true activity concentration, and voxel COV in the phantom background. Data are shown for all four reconstruction algorithms with no post-filtering applied. Values are mean and standard deviation (SD) obtained from the replicates, with the latter shown in parentheses. For clarity, the SD shown is the SD across the replicates expressed as a percentage of the true activity concentration in the sphere.