Molecular Imaging of Mesothelioma with ^99mTc-ECG and ⁶⁸Ga-ECG

Table 1

Biodistribution of ⁶⁸Ga-ECG in mesothelioma-bearing rats.

	Percentage of injected dose per gram of tissue weight (𝑛=3/time, interval, iv)^1
	15 min	30 min	60 min
Blood	1.66±0.06	1.54±0.02	1.38±0.03
Heart	0.51±0.04	0.39±0.04	0.40±0.03
Lung	1.07±0.02	0.94±0.04	0.80±0.04
Thyroid	0.88±0.07	0.96±0.11	0.83±0.05
Pancreas	0.29±0.02	0.28±0.03	0.29±0.03
Liver	0.77±0.05	0.71±0.07	0.78±0.04
Spleen	0.41±0.03	0.44±0.07	0.49±0.01
Kidney	1.53±0.06	0.75±0.04	0.70±0.02
Stomach	0.29±0.07	0.37±0.02	0.40±0.04
Intestine	0.31±0.04	0.35±0.05	0.53±0.01
Uterus	0.87±0.19	0.81±0.04	0.77±0.10
Tumor	0.70±0.06	0.72±0.06	0.92±0.08
Muscle	0.18±0.01	0.14±0.01	0.14±0.02
Bone	0.27±0.02	0.51±0.09	0.46±0.02
Brain	0.05±0.01	0.07±0.01	0.08±0.01
Tumor/blood	0.42±0.03	0.47±0.04	0.67±0.07
Tumor/muscle	3.84±0.52	5.63±1.03	7.00±1.42
Tumor/brain	11.68±1.87	8.81±1.54	13.20±2.78
Tumor/lung	0.64±0.05	0.78±0.10	1.15±0.08

¹Values represent the mean ± standard deviation of data from 3 animals.