Evaluation of a method based on synthetic data inserted into raw data prior to reconstruction for the assessment of PET scanners

EJNMMI Physics

Table 4 Experimental and simulated RC values from OSEM algorithm for each SBR and sphere size

	OSEM
	Experimental series				Simulated series
	SBR 2:1	SBR 4:1	SBR 6:1	SBR 8:1	SBR 2:1	SBR 4:1	SBR 6:1	SBR 8:1
Sphere	Mean recovery coefficient: Average ± SD
13 mm	0.67 ± 0.04	0.65 ± 0.02	0.64 ± 0.01	0.60 ± 0.01	0.71 ± 0.03	0.66 ± 0.02	0.64 ± 0.01	0.63 ± 0.01
10 mm	0.65 ± 0.03	0.58 ± 0.02	0.57 ± 0.02	0.56 ± 0.01	0.69 ± 0.04	0.63 ± 0.02	0.61 ± 0.02	0.60 ± 0.01
8 mm	0.56 ± 0.04	0.45 ± 0.03	0.47 ± 0.01	0.45 ± 0.01	0.58 ± 0.04	0.53 ± 0.03	0.51 ± 0.03	0.50 ± 0.02
6 mm	0.43 ± 0.06	0.46 ± 0.01	0.40 ± 0.01	0.36 ± 0.03	0.49 ± 0.05	0.43 ± 0.03	0.40 ± 0.02	0.38 ± 0.02
5 mm	0.42 ± 0.08	0.32 ± 0.06	0.30 ± 0.02	0.29 ± 0.05	0.45 ± 0.06	0.35 ± 0.04	0.31 ± 0.02	0.30 ± 0.02
4 mm	0.42 ± 0.14	0.29 ± 0.03	0.32 ± 0.05	0.24 ± 0.05	0.40 ± 0.06	0.31 ± 0.06	0.26 ± 0.05	0.23 ± 0.04
Sphere	Maximum recovery coefficient: Average ± SD
13 mm	1.67 ± 0.29	1.22 ± 0.02	1.12 ± 0.02	0.99 ± 0.03	1.49 ± 0.08	1.26 ± 0.04	1.16 ± 0.04	1.11 ± 0.03
10 mm	1.46 ± 0.24	1.11 ± 0.06	1.05 ± 0.11	0.93 ± 0.06	1.49 ± 0.17	1.27 ± 0.13	1.16 ± 0.11	1.10 ± 0.09
8 mm	1.11 ± 0.08	0.83 ± 0.15	0.83 ± 0.03	0.87 ± 0.06	1.08 ± 0.23	0.92 ± 0.03	0.84 ± 0.04	0.75 ± 0.10
6 mm	0.70 ± 0.04	0.79 ± 0.13	0.70 ± 0.13	0.63 ± 0.03	0.98 ± 0.07	0.81 ± 0.03	0.74 ± 0.04	0.65 ± 0.11
5 mm	0.67 ± 0.23	0.48 ± 0.08	0.47 ± 0.05	0.42 ± 0.10	0.72 ± 0.06	0.55 ± 0.05	0.49 ± 0.06	0.44 ± 0.09
4 mm	0.55 ± 0.14	0.38 ± 0.07	0.41 ± 0.11	0.30 ± 0.08	0.62 ± 0.16	0.42 ± 0.08	0.34 ± 0.07	0.31 ± 0.05