Table 3.

The impact of different reconstruction methods on SUVs of small pulmonary nodules before/after PVC.

Groups	Size (mm)	SUVmax					SUVmean
		OSEM	TOF	TOF-PSF	Q.Clear	P value	OSEM	TOF	TOF-PSF	Q.Clear	P value
≤ 10 mm
n = 57	5.03 ± 1.79	1.58 ± 0.82	2.26 ± 1.07	2.76 ± 1.39	4.32 ± 2.46	0.000	1.18 ± 0.53	1.45 ± 0.69	1.63 ± 0.76	2.50 ± 1.32	0.000
10–25 mm
n = 18	15.12 ± 4.32	5.52 ± 3.56	6.13 ± 3.44	7.23 ± 4.24	8.77 ± 5.65	0.128	3.04 ± 1.70	3.31 ± 1.68	3.76 ± 2.00	4.92 ± 2.90	0.050

Groups	Size (mm)	Corr SUVmax					Corr SUVmean
		OSEM	TOF	TOF-PSF	Q.Clear	P value	OSEM	TOF	TOF-PSF	Q.Clear	P value
≤ 10 mm
n = 57	5.03 ± 1.79	6.78 ± 3.01	6.66 ± 2.16	7.17 ± 2.78	8.64 ± 4.47	0.004	4.24 ± 2.44	4.33 ± 1.54	4.27 ± 1.54	5.04 ± 2.56	0.024
10–25 mm
n = 18	15.12 ± 4.32	9.36 ± 5.99	9.51 ± 5.64	11.04 ± 6.90	11.75 ± 8.03	0.649	5.25 ± 3.05	5.16 ± 2.85	5.76 ± 3.29	6.60 ± 4.14	0.559

All P values were generated from Kruskal Wallis H test among the four reconstruction algorithms.