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Table 2 Deviation between the activity concentration calculated from SPECT/CT images and the real activity concentration inside the bottle to simulate a kidney

From: Implementation of patient dosimetry in the clinical practice after targeted radiotherapy using [177Lu-[DOTA0, Tyr3]-octreotate

OSEM reconstruction corrections Number of iterations (i) and subsets (ss) Filter Calculated activity concentration (MBq/ml) Real activity concentration (MBq/ml) Deviation (%)
AC + RR + SC 4i*5ss None 0.506 0.537 − 5.88
4i*10ss 0.495 − 7.88
6i*10ss 0.502 − 6.55
8i*10ss 0.503 − 6.33
16i*10ss 0.502 − 6.55
32i*10ss 0.507 − 5.66
4i*5ss Gaussian 0.11 cm 0.507 − 5.66
4i*10ss 0.494 − 88.0
6i*10ss 0.509 − 5.22
8i*10ss 0.507 − 5.66
16i*10ss 0.505 − 66.0
  1. AC attenuation correction, RR recovery resolution, SC scatter correction