Table 2.

The spatial resolution values of the NEMA point sources in a warm background for the WT-PET and the Quadra-like TB-PET

Scanner	Source position (cm)		FWHM (mm)			FWTM (mm)
			x	y	z	x	y	z
WT-PET	Center	(1, 0, 0)	1.20	1.62	1.30	2.87	4.14	3.06
		(10, 0, 0)	1.16	1.90	1.12	2.81	4.83	2.89
		(20, 0, 0)	1.17	1.94	1.19	2.60	4.36	2.81
	3/8 of AFOV	(1, 0, 39.75)	1.14	2.13	1.24	2.86	5.22	3.20
		(10, 0, 39.75)	1.21	2.48	1.29	3.19	7.11	3.06
		(20, 0, 39.75)	1.26	2.52	1.05	2.08	5.58	2.08
	Center	(0, 1, 0)	1.18	1.75	1.34	2.43	3.79	2.54
		(0, 10, 0)	1.22	1.92	1.33	2.54	4.20	2.54
		(0, 20, 0)	1.32	2.25	1.41	2.71	7.08	2.71
	3/8 of AFOV	(0, 1, 39.75)	1.29	2.24	1.16	2.58	5.71	2.59
		(0, 10, 39.75)	1.52	2.71	1.46	2.91	6.54	3.35
		(0, 20, 39.75)	1.65	3.36	1.88	3.76	8.18	3.96
Quadra-like TB-PET 322 MRD	Center	(1, 0, 0)	2.55	2.62	2.85	5.68	6.45	7.03
		(10, 0, 0)	3.76	3.27	2.95	7.24	7.98	7.78
		(20, 0, 0)	5.24	3.97	3.62	10.39	9.39	8.03
	3/8 of AFOV	(1, 0, 39.75)	2.09	2.35	2.24	4.76	5.70	4.68
		(10, 0, 39.75)	2.78	3.14	2.89	5.85	7.64	5.03
		(20, 0, 39.75)	4.63	3.31	3.20	8.61	6.81	5.76
Quadra-like TB-PET 85 MRD	Center	(1, 0, 0)	2.62	2.70	2.72	5.02	5.66	4.82
		(10, 0, 0)	2.86	2.72	2.78	6.66	6.43	5.86
		(20, 0, 0)	5.24	3.40	2.94	9.27	9.71	5.79
	3/8 of AFOV	(1, 0, 39.75)	2.22	2.44	2.40	4.80	5.71	4.84
		(10, 0, 39.75	3.31	3.02	2.71	6.35	6.67	5.95
		(20, 0, 39.75)	4.29	2.66	2.23	8.55	10.78	5.82