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Dosimetry criteria
| TARGET VOLUMES | |
|---|---|
| PTV (GTV + 2 mm) | V23,1Gy ≥ 99% |
| Dmax ≤35Gy | |
| GTV | D98% ≥ 29Gy |
| ORGANS AT RISK | |
| Brain stem |
Dmax < 23,1Gy V18Gy < 0,5 cc |
| Optic chiasm | Dmax< 17,4Gy |
| Optic nerves | Dmax<15Gy |
| Spinal cord | Dmax<15Gy |
|
Healthy brain (cranial cavity – GTV) |
V23,1Gy < 7 cc |
| V18Gy < 20 cc | |
