From: Simultaneous Tc-99m and I-123 dual-radionuclide imaging with a solid-state detector-based brain-SPECT system and energy-based scatter correction
Compartment
Volume (ml)
Tc-99m (kBq/ml)
I-123 (kBq/ml)
Target ratio of Tc:I
1
120
295
95
3:1
2
0
372
0:4
3
411
4:0
4
100
201
186
2:2
5
0:0
6
96
278
1:3