EJNMMI Physics

Table 3 Upper and lower limits of RCs and their ranges in EARL2 [26]

From: Variability in PET image quality and quantification measured with a permanently filled ⁶⁸Ge-phantom: a multi-center study

	Diameter of the hot sphere (mm)
	10	13	17	22	28	37
RC_max
Upper	0.88	1.22	1.38	1.32	1.26	1.29
Lower	0.52	0.85	1.00	1.01	1.01	1.05
Range (upper–lower)	0.36	0.37	0.38	0.31	0.25	0.24
RC_mean
Upper	0.61	0.86	0.97	0.99	0.97	1.00
Lower	0.39	0.63	0.76	0.80	0.82	0.85
Range (upper–lower)	0.22	0.23	0.21	0.19	0.15	0.15
RC_peak
Upper	0.41	0.70	0.99	1.10	1.10	1.10
Lower	0.27	0.45	0.75	0.90	0.90	0.90
Range (upper–lower)	0.14	0.25	0.24	0.20	0.20	0.20

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