Site | Median | Maximum | Organ at risk | Volume (cm3) | Volume (cm3) |
---|---|---|---|---|---|
dose | dose | volume | receiving | receiving | |
(Gy) | (Gy) | (cm3) | a dose > 25.0 Gy | a dose > 27.5 Gy | |
Cavernous sinus | 18.5 | 29 | 1.9 (1.44-2.52) | 1.7 (1.41-2.4) | 0.52 (0.2-1.9) |
Optic nerve | 13.5 | 28.5 | 0.93 (0.71-1.26) | 0.08 (0.01-0.5) | 0.026 (0.005-0.08) |
Optic chiasm | 5.5 (12*) | 28.5 | 0.48 (0.33-0.71) | 0.13 (0.03-0.28)* | 0.022 (0.01-0.06)* |