Table 2.
Treatment characteristics (n = 23)
| Characteristics | No. (%) |
|---|---|
| Spinal region treated | |
| Cervical | 2 (9) |
| Thoracic | 18 (78) |
| Lumbar | 3 (13) |
| Initial dose to spinal cord | |
| 30 Gy/10 fr | 9 (39) |
| 40 Gy/20 fr | 6 (26) |
| 37.5 Gy/15 fr | 2 (9) |
| 40 Gy/16 fr | 2 (9) |
| Others | 4 (17) |
| Interval, month | |
| Median 13 (range, 2–75) | |
| <6 | 4 (17) |
| ≥6 | 19 (83) |
| GTV volume (cm3) | |
| Median 47.4 (range, 11.2–292.4) | |
| PTV volume (cm3) | |
| Median 69.8 (range, 11.2–316.7) | |
| Reirradiation dose (dose to 90% of the PTV) | |
| Median 24.5 Gy/5 fr (range, 14.7–50 Gy/3–25 fr) | |