TABLE 2

Region-of-interest analysis to quantify loss of radioactivity in the whole-body sections from freeze-drying the sections

Percent injected dose per gram (%ID/g) values calculated from the regions of interest drawn before drying the sections are shown on the left, and the approximate percent radioactivity remaining in the regions of interest after drying is shown on the right. Data are from one animal for each of the two time points.


Organ

15 Min

60 Min
%ID/g
% Remaining after Dehydration
%ID/g
% Remaining after Dehydration
Blood 0.31 21 0.11 87
Brain 0.15 39 0.09 87
Harderian gland 1.47 32 2.24 65
Heart 0.34 55 0.14 93
Kidney 0.54 53 0.29 100
Liver 0.39 42 0.33 99
Muscle 0.23 43 0.10 87
Pancreas 0.61 61 0.68 89
Preputial gland
1.00
7
1.01
19