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Table 2 Clinical OAR dose constraints

From: Evaluation of a new foetal shielding device for pregnant brain tumour patients

Critical structure

Dose constraint

Chiasm

Dmax < 55 Gy to whole structure (< 3%)

Left optic nerve

Dmax < 55 Gy to whole structure (< 3%)

Right optic nerve

Dmax < 55 Gy to whole structure (< 3%)

Brainstem

Dmax < 54 Gy to whole structure (< 5%)

Left eye

Dmax < 15 Gy to whole structure

Right eye

Dmax < 15 Gy to whole structure

Left hippocampus

Dmax < 12 Gy to 20% of structure

Right hippocampus

Dmax < 12 Gy to 20% of structure