IMPT type | Site | Minimum dose | Maximum dose | Mean dose | |||
cGy (RBE) | % | cGy (RBE) | % | cGy (RBE) | % | ||
SFO | CTV | 84.1 ± 14.4 | 2.2 ± 0.4 | 95.1 ± 18.3 | 1.5 ± 0.3 | 71.6 ± 0.7 | 1.3 ± 0.0 |
Brainstem | 3.7 ± 0.8 | 42.3 ± 8.6 | 91.6 ± 1.6 | 1.6 ± 0.2 | 48.5 ± 13.2 | 4.0 ± 1.7 | |
Chiasma | 54.2 ± 15.2 | 8.5 ± 6.0 | 75.6 ± 8.1 | 1.4 ± 0.2 | 74.2 ± 18.0 | 2.1 ± 0.5 | |
Left optic nerve | 45.4 ± 7.0 | 4.1 ± 1.0 | 67.5 ± 11.6 | 1.3 ± 0.2 | 56.3 ± 6.8 | 1.8 ± 0.2 | |
Right optic nerve | 20.8 ± 4.0 | 33.9 ± 20.0 | 88.7 ± 28.2 | 5.4 ± 2.1 | 53.8 ± 15.8 | 12.3 ± 6.0 | |
MFO | CTV | 54.0 ± 23.1 | 1.2 ± 0.5 | 96.4 ± 29.4 | 1.6 ± 0.5 | 61.4 ± 12.8 | 1.1 ± 0.2 |
Brainstem | 2.4 ± 1.3 | 38.9 ± 14.7 | 81.1 ± 21.0 | 1.5 ± 0.4 | 50.3 ± 9.1 | 5.2 ± 0.9 | |
Chiasma | 56.0 ± 22.5 | 13.9 ± 7.7 | 68.4 ± 14.1 | 1.3 ± 0.3 | 86.6 ± 8.4 | 2.6 ± 0.2 | |
Left optic nerve | 40.9 ± 4.6 | 5.1 ± 0.9 | 58.4 ± 2.1 | 1.2 ± 0.1 | 60.0 ± 8.1 | 2.1 ± 0.4 | |
Right optic nerve | 16.7 ± 4.3 | 46.1 ± 21.0 | 114.1 ± 30.8 | 8.3 ± 2.6 | 64.8 ± 4.1 | 19.3 ± 5.6 |