Table 2.

Biodistribution of ^99mTc(CO)₃(PMG) (^99mTc-2) and co-injected ¹³¹I-OIH in normal rats at 10 and 60 minutes post-injection. * Results are expressed as %ID ± SD in blood, urine and selected organs.

	10 min		60 min
	99mTc-2	131I-OIH	99mTc-2	131I-OIH
Blood	8.6 ± 0.9	4.7 ± 0.5	2.8 ± 0.6	0.8 ± 0.4
Liver	4.2 ± 0.8	2.7 ± 0.5	3.9 ± 0.4	0.6 ± 0.2
Bowela	1.3 ± 0.1	1.5 ± 0.1	0.9 ± 0.2	1.1 ± 0.2
Spleen	0.1 ± 0.0	0.1 ± 0.0	0.1 ± 0.0	0.0 ± 0.0
Heart	0.2 ± 0.0	0.1 ± 0.0	0.1 ± 0.1	0.1 ± 0.1
Lung	0.6 ± 0.2	0.4 ± 0.1	0.3 ± 0.0	0.1 ± 0.0
Kidney	8.9 ± 1.2	6.1 ± 1.9	2.5 ± 1.0	1.2 ± 0.6
Urine	33.1 ± 6.9	53.0 ± 9.2	73.9 ± 4.3	88.1 ± 2.6
%Urineb	62 ± 3		84 ± 2

^*Data are presented as mean ± SD; 10 min n = 5, 60 min n = 4.

^a)Bowel includes intestines and stomach.

^b)%Urine is expressed as a ^99mTc-2/¹³¹I-OIH ratio.