EJNMMI Physics

Table 2 Quantification error results for spheres simulated in a cylindrical phantom with and without partial volume corrections (PVCs)

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

Object	Quantification error (%)
Object	Without PVC	With PVC	Without PVC	With PVC
Sphere	Sphere-CF	Sphere-CF-RC	Cylinder-CF	Cylinder-CF-RC
15.6 ml	− 4.56	3.32	− 20.08	3.28
24.4 ml	− 3.40	0.19	− 19.11	0.19
33.5 ml	− 2.05	− 0.43	− 17.98	− 0.43
65.4 ml	1.60	0.83	− 14.93	0.86
Average	− 2.10 ± 2.67	0.98 ± 1.64	− 18.03 ± 2.23	0.98 ± 1.62

CF Calibration factor; PVC Partial volume correction, RC Recovery coefficient

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