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Table 2 Recovery coefficients (RCs) for the cortex-only kidney phantoms, three different target-to-background ratios, and two different SPECT reconstruction iteration numbers

From: The magnitude of the partial volume effect in SPECT imaging of the kidneys: a phantom study

Cortex-only phantom name Recovery coefficients [%]
36 iterations
Recovery coefficients [%]
72 iterations
Target-to-background ratio Target-to-background ratio
Infinity 10:1 5:1 Infinity 10:1 5:1
Pat1L 56.1 54.2 57.4 57.2 56.3 59.5
Pat1R 60.8 58.8 61.9 60.6 60.9 64.2
Pat2L 45.7 45.0 49.6 47.1 46.7 51.3
Pat2R 43.5 43.9 47.7 46.3 45.8 50.0
Pat3L 37.9 37.4 42.4 38.8 38.8 43.6
Pat3R 36.3 39.1 48.4 38.0 40.2 49.5
Pat4L 53.8 52.5 57.1 54.3 53.9 59.0
Pat5R 51.8 52.0 55.1 54.2 53.0 56.6
Pat6L 49.8 49.8 52.9 51.3 51.5 54.5
AVG ± SD 48.4 ± 8.3 48.0 ± 7.2 52.5 ± 6.0 49.8 ± 7.9 49.7 ± 7.4 54.2 ± 6.3
  1. The AVG ± SD row denotes the averages plus/minus one standard deviation of all cortex-only phantom RCs. Values were obtained for LEHR collimation and the radionuclide 99mTc