TABLE 1

Biodistribution of ⁴⁴Sc-cm09 in KB Tumor–Bearing Female Nude Mice

	⁴⁴Sc-cm09 (% injected dose per gram tissue^*)
Organ	2 h after injection	4 h after injection	8 h after injection	20 h after injection
Blood	3.74 ± 0.88	2.67 ± 0.35	1.77 ± 0.10	0.87 ± 0.08
Lung	2.29 ± 0.42	1.84 ± 0.21	1.40 ± 0.10	0.90 ± 0.12
Spleen	1.05 ± 0.19	0.90 ± 0.12	0.77 ± 0.01	0.70 ± 0.14
Kidneys	19.21 ± 1.70	22.61 ± 4.52	21.30 ± 4.62	22.22 ± 1.94
Stomach	1.19 ± 0.17	1.01 ± 0.06	0.81 ± 0.03	0.58 ± 0.02
Intestines	0.59 ± 0.16	0.53 ± 0.09	0.38 ± 0.05	0.36 ± 0.12
Liver	3.63 ± 0.19	3.12 ± 0.38	3.56 ± 0.55	2.31 ± 0.15
Salivary glands	6.49 ± 0.52	6.48 ± 0.29	4.51 ± 0.53	3.48 ± 0.57
Muscle	1.07 ± 0.03	1.30 ± 0.61	1.12 ± 0.37	0.76 ± 0.28
Bone	0.98 ± 0.04	1.04 ± 0.16	0.92 ± 0.0.9	0.68 ± 0.05
Tumor	8.37 ± 0.41	12.51 ± 1.74	12.43 ± 1.04	14.05 ± 2.29
Tumor to blood	2.50 ± 0.59	3.79 ± 1.88	7.03 ± 0.64	16.07 ± 1.71
Tumor to liver	2.31 ± 0.11	3.25 ± 1.62	3.34 ± 0.43	6.07 ± 0.72
Tumor to kidney	0.44 ± 0.03	0.45 ± 0.23	0.59 ± 0.06	0.63 ± 0.07