Table 1 Treatment planning objectives
Regions of interest | Dose level in Gy | Volume in % | Dose volume objective type | Weight |
|---|---|---|---|---|
Brain | 20 | 20 | Maximum dose volume | 300 |
| Â | 30 | 10 | Maximum dose volume | 300 |
| Â | 40 | 5 | Maximum dose volume | 300 |
Brainstem | 51.4 | 0 | Maximum dose | 500 |
Chiasm | 50 | 0 | Maximum dose | 300 |
Lens | 15 | 0 | Maximum dose | 30 |
Bulb | 35 | 50 | Maximum dose volume | 100 |
Lacrimal gland | 20 | 50 | Maximum dose volume | 30 |
Parotid | 30 | 50 | Maximum dose volume | 100 |
Outline | 51.4 | 0 | Maximum dose | 5000 |
|  | 49.4–25.0 |  | Surrounding dose falloff, distance 1 cm | 3000 |
PTV | 49.9 | 100 | Minimum dose | 3000 |
| Â | 51.4 | 0 | Maximum dose | 3000 |
| Â | 50.4 | Â | Uniform dose | 1000 |