TABLE 2

Paired Label Biodistribution of ¹⁸F-SFB-5F7 and ¹²⁵I-SGMIB-5F7 in Severe Combined Immunodeficiency Mice Bearing BT474M1 Xenografts

	%ID/g^*
	1 h		2 h
Tissue	¹²⁵I-SGMIB	¹⁸F-SFB	¹²⁵I-SGMIB	¹⁸F-SFB
Liver	2.02 ± 0.47	0.95 ± 0.21	2.18 ± 0.55	0.68 ± 0.13
Spleen	1.08 ± 0.33	0.67 ± 0.37	1.28 ± 0.22	0.52 ± 0.13
Lung	2.96 ± 0.39	2.31 ± 0.40	2.56 ± 0.70	2.00 ± 0.38^†
Heart	0.76 ± 0.20	0.62 ± 0.15	0.62 ± 0.13	0.54 ± 0.15^†
Kidney	102.50 ± 26.35	3.90 ± 1.13	93.00 ± 18.82	2.90 ± 0.77
Stomach	1.32 ± 1.17	1.43 ± 1.69^†	1.98 ± 1.12	3.21 ± 4.62^†
Small intestine	1.17 ± 0.55	0.69 ± 0.33	1.32 ± 0.46	0.59 ± 0.19
Large intestine	1.18 ± 0.47	0.69 ± 0.50	3.86 ± 5.47	1.22 ± 1.66^†
Muscle	1.14 ± 0.27	1.16 ± 0.37^†	1.21 ± 0.89	1.43 ± 1.20^†
Blood	0.96 ± 0.26	1.25 ± 0.29	0.67 ± 0.51	1.44 ± 0.88
Bone	0.88 ± 0.36	0.97 ± 0.55^†	0.51 ± 0.09	0.54 ± 0.08^†
Brain	0.07 ± 0.02	0.09 ± 0.02	0.08 ± 0.05	0.12 ± 0.06
Tumor	27.88 ± 8.08	23.94 ± 7.00	33.59 ± 6.24	29.59 ± 5.10

↵* Mean ± SD (n = 5).
↵† Difference in uptake not statistically significant.