Table 2.

Residence times of source organs determined by whole-body imaging with [¹¹C]K-2 in male subjects.

370 MBq of [11C]K-2		555 MBq of [11C]K-2
Source organ	Residence time (h)	Source organ	Residence time (h)
Brain	0.0246 ± 0.0034	Brain	0.0218 ± 0.0034
Thyroid	0.0001 ± 0.0000	Thyroid	0.0001 ± 0.0000
Lung	0.0238 ± 0.0049	Lung	0.0266 ± 0.0070
Heart	0.0028 ± 0.0010	Heart	0.0037 ± 0.0010
Spleen	0.0015 ± 0.0012	Spleen	0.0018 ± 0.0008
Liver	0.1188 ± 0.0148	Liver	0.1117 ± 0.0203
Stomach	0.0027 ± 0.0009	Stomach	0.0027 ± 0.0010
Kidney	0.0268 ± 0.0037	Kidney	0.0243 ± 0.0057
Pancreas	0.0012 ± 0.0006	Pancreas	0.0015 ± 0.0006
Gall bladder	0.0002 ± 0.0001	Gall bladder	0.0003 ± 0.0002
Small intestine	0.0114 ± 0.0036	Small intestine	0.0081 ± 0.0004
Urinary bladder	0.0431 ± 0.0194	Urinary bladder	0.0352 ± 0.0157
Red marrow	0.0155 ± 0.0011	Red marrow	0.0164 ± 0.0023
Remainder	0.2174 ± 0.0127	Remainder	0.2358 ± 0.0276

Values are mean ± SD of six subjects.