Table 3.
Characteristics of reirradiation
| Characteristic | |
|---|---|
| Months from the first irradiation | n (%) |
| <6 | 8 (19) |
| ≥6, <12 | 14 (33) |
| ≥12 | 20 (48) |
| Months from the first irradiation, median (range) | Months |
| 11.1 (0.6–131.1) | |
| Gy | |
| Dmax of the spinal cord, median (range) | 19.3 (15.3–25.0) |
| D1 cc of the spinal cord, median (range) | 14.9 (8.9–24.4) |
| Gy | |
| BEDa of the spinal cord, median (range) | 56.7 (38.8–87.8) |
| Cumulative BED of the spinal cord, median (range) | 131.2 (79.5–176.3) |
aBiologically equivalent dose assuming α/β = 2 Gy.