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Table 1 The recovery coefficient (RC) values for the sphere and kidney volumes generated for the sphere and cylinder calibration factors (CFs)

From: The effect of calibration factors and recovery coefficients on 177Lu SPECT activity quantification accuracy: a Monte Carlo study

Objects Sphere-RC Cylinder-RC % difference
Kidneys
L-K: 159 ml 1.18 0.99 16.1
R-K: 169 ml 1.18 0.99 16.1
Spheres
15.6 ml 0.92 0.77 16.3
24.4 ml 0.96 0.81 15.6.
33.5 ml 0.98 0.82 16.3
65.4 ml 1.00 0.84 16.0
   Average 16.1 ± 0.26
  1. L-K Left kidney, R-K Right kidney, RC Recovery coefficient