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Table 2 Optimisation constraints

From: Hippocampal sparing radiotherapy for glioblastoma patients: a planning study using volumetric modulated arc therapy

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