Research Article
Lyophilized Kit for the Preparation of the PET Perfusion Agent [68Ga]-MAA
Table 1
Decay corrected organ biodistribution (DC-ID/o) of 68Ga-MAA, free 68Ga, 99mTc-MAA, and hydrolyzed 99mTc.
| Organ | Free 68Ga |
68Ga-MAA |
99mTc-MAA | Hydrolyzed 99mTc | 2 hours | 4 hours | 2 hours | 4 hours | 2 hours | 4 hours | 2 hours | 4 hours |
| Spleen | 0.6 ± 0.5 | 1.6 ± 0.1 | 0.1 ± 0.0 | 0.1 ± 0.0 | 0.1 ± 0.0 | 0.1 ± 0.0 | 7.2 ± 1.1 | 11.8 ± 0.7 | Blood | 84.9 ± 4.5 | 63.1 ± 3.9 | 0.8 ± 0.8 | 0.8 ± 0.0 | 0.9 ± 0.2 | 0.9 ± 0.0 | 1.3 ± 1.2 | 0.4 ± 0.0 | Rib | 0.5 ± 0.4 | 1.3 ± 0.4 | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | Urine | 6.8 ± 2.9 | 14.0 ± 1.7 | 0.1 ± 0.0 | 0.1 ± 0.0 | 7.6 ± 1.3 | 12.3 ± 1.2 | 6.1 ± 4.0 | 0.6 ± 0.2 | Right kidney | 0.5 ± 0.5 | 1.6 ± 0.4 | 0.0 ± 0.0 | 0.0 ± 0.0 | 2.1 ± 0.1 | 3.3 ± 0.1 | 0.6 ± 0.1 | 0.4 ± 0.0 | Left kidney | 0.5 ± 0.5 | 1.4 ± 0.2 | 0.0 ± 0.0 | 0.0 ± 0.0 | 2.2 ± 0.2 | 3.4 ± 0.2 | 0.6 ± 0.1 | 0.4 ± 0.0 | Heart | 0.7 ± 0.7 | 1.5 ± 0.2 | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.1 ± 0.0 | 0.2 ± 0.0 | 0.2 ± 0.0 | Lungs | 3.1 ± 2.9 | 8.4 ± 0.3 | 98.6 ± 0.7 | 98.6 ± 0.1 | 86.6 ± 0.7 | 79.2 ± 1.5 | 39.5 ± 1.5 | 45.2 ± 10.9 | Liver | 2.3 ± 1.9 | 7.2 ± 1.2 | 0.4 ± 0.2 | 0.4 ± 0.1 | 0.5 ± 0.0 | 0.9 ± 0.0 | 44.6 ± 2.8 | 40.9 ± 11.7 |
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