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 |