Table 2 Optimisation constraints
OAR | Dose constraint |
|---|---|
Lenses | Maximum dose ≤ 5Gy |
Eyes | Mean dose ≤ 30Gy |
Optic nerves | Maximum dose ≤ 54Gy (5 mm expansion: ≤ 56Gy) |
Chiasm | Maximum dose ≤ 54Gy (3 mm expansion: ≤ 56Gy) |
Brainstem | Maximum dose ≤ 54Gy (3 mm expansion: ≤ 56Gy) |
Cochlea | Maximum dose ≤ 54Gy/60Gy |
Hippocampus | Chosen individually for each patient |