Effective and Biologic Half-Lives Determined from Monoexponential Fits Through Tumors and Normal Organs
| Region | Effective half-life (h) | Biologic half-life (h) |
| Kidneys | 5.4 (4.5–5.9) | 51.5 (18.6–511.5) |
| Liver | 5.4 (4.6–5.8) | 51.0 (20.2–136.0) |
| Spleen | 5.3 (4.9–5.9) | 47.6 (27.8–333.5) |
| Thyroid | 4.6 (4.0–4.9) | 19.7 (11.9–26.0) |
| Tumors | 5.3 (4.8–6.0) | 47.9 (24.1–1,800) |
Data are median, followed by range in parentheses.