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Table 4 Results of the regression analysis between the recovery coefficient (RC) and surface area-to-volume (SA:V) ratio for the infinity, 10-to-1, 5-to-1, and pooled target-to-background ratios of all kidney phantoms in the study

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

  Infinity TBR 10:1 TBR 5:1 TBR Pooled
Equation of best fit RC [%] = 99.8 − 16.1 * SA:V [cm−1] RC [%] = 99.8 − 16.1 * SA:V [cm−1] RC [%] = 103.0 − 15.6 * SA:V [cm−1] RC [%] = 100.9 − 16.0 * SA:V [cm−1]
R2 0.96 0.97 0.98 0.95