Absorbed Fractions of Emitted Energy (φ) in Rat Femur Tumor Model for 90Y, 111In, and 177Lu
| Source | Target (%) | |||||
|---|---|---|---|---|---|---|
| Tumor | Femur | Marrow | ||||
| Tumor | 90Y | 51 | 3.7 | 0.5 | ||
| 111In (γ-rays) | 0.9 | 0.3 | 0.0 | |||
| 111In (Au/IC e−) | 96 | 0.2 | 0.0 | |||
| 177Lu (β-rays) | 94 | 0.3 | 0.0 | |||
| 177Lu (γ-rays) | 0.9 | 0.4 | 0.0 | |||
| 177Lu (Au/IC e−) | 98 | 0.1 | 0.0 | |||
| Femur | 90Y | 4.6 | 36 | 7.5 | ||
| 111In (γ-rays) | 0.1 | 1.0 | 0.1 | |||
| 111In (Au/IC e−) | 2.0 | 53 | 11 | |||
| 177Lu (β-rays) | 2.1 | 51 | 11 | |||
| 177Lu (γ-rays) | 0.1 | 1.2 | 0.1 | |||
| 177Lu (Au/IC e−) | 1.7 | 57 | 10 | |||
| Marrow | 90Y | 1.7 | 43 | 27 | ||
| 111In (γ-rays) | 0.1 | 1.1 | 0.4 | |||
| 111In (Au/IC e−) | 0.0 | 9.0 | 91 | |||
| 177Lu (β-rays) | 0.0 | 12 | 87 | |||
| 177Lu (γ-rays) | 0.1 | 1.2 | 0.4 | |||
| 177Lu (Au/IC e−) | 0.0 | 3.3 | 97 | |||
Auger (Au) and internal conversion (IC) electron part of 111In and 177Lu emissions was considered (for 111In: 14.8 Au/IC e−/decay with Emean = 2.3 keV; for 177Lu: 0.25 Au/IC e−/decay with Emean = 30 keV).