Table 3.
Number of Fractions and Doses
| Number of fractions of the first treatment (SBRT) | Number | Percent |
|---|---|---|
| Single Fraction | ||
| 30 Gy/ 1 fr | 11 | 42 |
| 23 Gy/1 fr | 3 | 11 |
| Multiple Fractions | ||
| 45 Gy/ 3fr | 3 | 11 |
| 50 Gy/5 fr | 3 | 11 |
| 60 Gy/ 30 fr a | 5 | 18 |
| 30 Gy/ 10 fr b | 2 | 7 |
| Number of fractions of the re-irradiation (SBRT) | ||
| Single Fraction | ||
| 30 Gy/ 1 fr | 4 | 15 |
| 23 Gy/1 fr | 3 | 11 |
| Multiple Fractions | ||
| 54 Gy/ 3 fr | 3 | 11 |
| 45 Gy / 3fr | 5 | 18 |
| 50 Gy/ 5fr | 8 | 30 |
| 30Gy/fr 5 | 4 | 15 |
| Medium biological effective dose (10Gy) (BED10) | Dose | Range |
| I Treatment | 97,2 Gy | 40–120 |
| Re-Irradiation | 100,6 Gy | 48–151,2 |
| Medium equivalent dose in 2 Gy (10 Gy) (EQD2) | DOSES | RANGE |
| I treatment | 81 Gy | 32,5–100 Gy |
| Re-Irradiation | 93,8 Gy | 40–126 Gy |
| Cumulative medium BED (10) | 197,8 Gy | 88–271,2 Gy |
| Cumulative medium EQD2 (10) | 164,8 Gy | 72,5–226 Gy |
| Median biological effective dose (10Gy) (BED10) | Doses | Range |
| I Treatment | 112,5 Gy | 40–120 Gy |
| Re-Irradiation | 100 Gy | 48–151,2 Gy |
| Median equivalent dose in 2 Gy (10 Gy) (EQD2) | Doses | Range |
| I treatment | 93,8 Gy | 32,5–100 Gy |
| Re-Irradiation | 83,3 Gy | 40–126 Gy |
| Cumulative median bed (10) | 200 Gy | 88–271,2 Gy |
| Cumulative median EQD2 (10) | 166,7 Gy | 72,5.226 Gy |
aTreatment done by IMRT technique
b Treatment done by 3D technique