TABLE 4

Quantitative Assessment of Biodistribution for Different Uptake Times

	SUV_mean						SUV_mean ratio
Organ	Time 1	Time 2	Time 3	Time 4	P¹	P²	Time 1	Time 2	Time 3	Time 4	P¹	P²
Background	0.57 ± 0.07	0.54 ± 0.09	0.53 ± 0.06	0.53 ± 0.09	0.017^*	0.006^*	—	—	—	—	—	—
Blood pool	2.01 ± 0.45	1.90 ± 0.37	1.81 ± 0.40	1.63 ± 0.32	<0.001	<0.001	3.54 ± 0.72	3.56 ± 0.54	3.48 ± 0.79	3.09 ± 0.48	0.001^†	0.015^†
Lung	0.68 ± 0.16	0.64 ± 0.15	0.64 ± 0.14	0.57 ± 0.11	0.020^*	0.005^*	1.20 ± 0.29	1.21 ± 0.24	1.22 ± 0.28	1.10 ± 0.28	0.091	0.153
Kidney	26.81 ± 6.76	29.08 ± 7.37	29.21 ± 7.39	30.13 ± 9.01	0.093	0.008	48.09 ± 14.63	55.80 ± 17.17	55.98 ± 16.53	58.95 ± 22.37	0.010	0.001
Bladder	2.25 ± 1.28	2.84 ± 2.29	2.80 ± 1.42	4.22 ± 2.71	<0.001	<0.001	3.94 ± 2.16	5.48 ± 5.22	5.38 ± 2.79	8.22 ± 5.71	<0.001	<0.001
Bone	1.06 ± 0.27	1.12 ± 0.27	1.13 ± 0.28	1.20 ± 0.43	0.322	0.052	1.90 ± 0.51	2.12 ± 0.55	2.17 ± 0.59	2.34 ± 0.10	0.043	0.004
Parotid	15.21 ± 3.66	14.50 ± 4.72	15.05 ± 4.12	16.94 ± 4.52	0.048	0.108	27.10 ± 7.41	27.65 ± 10.19	28.94 ± 8.23	32.87 ± 10.07	0.012	0.003
SMG⁺	16.31 ± 3.16	16.28 ± 3.70	16.75 ± 4.86	18.71 ± 4.32	0.048	0.031	29.16 ± 7.28	30.96 ± 8.23	32.32 ± 9.93	36.20 ± 9.71	0.006	<0.001
Liver	8.50 ± 2.30	7.94 ± 2.28	8.29 ± 2.75	6.60 ± 2.18	0.007	0.005	15.13 ± 4.38	15.09 ± 4.74	15.92 ± 5.38	12.87 ± 4.86	0.090	0.204
Spleen	9.67 ± 3.77	8.70 ± 3.10	9.47 ± 3.56	8.84 ± 3.12	0.476	0.313	17.30 ± 7.35	16.38 ± 5.78	18.21 ± 7.27	16.99 ± 6.26	0.525	0.176
Duodenum	7.20 ± 2.46	6.47 ± 2.27	7.37 ± 2.92	7.31 ± 3.39	0.293	0.498	12.86 ± 4.59	12.28 ± 4.50	14.20 ± 5.89	13.91 ± 6.03	0.384	0.167
Pancreas	2.403 ± 0.85	2.09 ± 0.53	2.13 ± 0.75	2.07 ± 0.57	0.094	0.014	4.31 ± 1.68	3.99 ± 1.21	4.09 ± 1.58	3.99 ± 1.46	0.742	0.148

↵* Normally distributed variable.
↵† Unequal variances across group.
P¹ = group comparisons from ANOVA, Welch ANOVA, or Kruskal–Wallis test; P² = trend test from linear contrast test or Jonckheere–Terpstra test; SMG = submandibular gland.