Table 3.
Dose-volume characteristics.
| Dose-volume characteristics | Median (interquartile range) |
|---|---|
| HR-CTV volumea | 24.4 cm3 (14.1) |
| Dose to 90% of the volume (D90) | 77.2 Gy (2.8) |
| Volume receiving 100% of the prescribed dose (V100%)a | 92.8% (4.2) |
| Volume receiving 100% of the prescribed dose (V100cc)a | 23.9 cm3 (11.5) |
| Volume receiving 150% of the prescribed dose (V150%)a | 56.1% (5.4) |
| Volume receiving 150% of the prescribed dose (V150cc)a | 14.7 cm3 (7.9) |
| Volume receiving 200% of the prescribed dose (V200%)a | 37.0% (6.1) |
| Volume receiving 200% of the prescribed dose (V200cc)a | 9.8 cm3 (5.0) |
| Bladder D2cc | 59.0 Gy (5.9) |
| Rectum D2cc | 58.4 Gy (4.0) |
| Sigmoid D2cc | 51.6 Gy (7.0) |
a
The HR-CTV volume included the vaginal cylinder thus over-represents the true HR-CTV volume and respective V100, V150, and V200. HR-CTV = high risk clinical target volume. Cc = cubic centimeters. Gy = Gray D2cc = Dose to 2 cm3. All presented doses represent the equivalent dose at 2Gy per fraction (EQD2Gy).