Table 2.
Details of dosimetry
| Min | Max | Median | |
|---|---|---|---|
| PTV (% of prescription dose) | |||
| D2% | 104.4 | 135.2 | 108.1 |
| D98% | 86.0 | 99.3 | 98.8 |
| D50% | 101.7 | 128.0 | 104.5 |
| GTV (% of prescription dose) | |||
| D50% | 101.8 | 133.8 | 105.9 |
| Normal brain (Gy) | |||
| Dmean | 1.0 | 32.9 | 10.4 |
| Brain stem (Gy) | |||
| D2% | 0.1 | 45.0 | 20.2 |
| Dmean | 0.0 | 28.7 | 8.7 |
| Optic nerve (Gy) | |||
| D2% | 0.1 | 33.6 | 7.2 |
| Dmean | 0.1 | 25.1 | 4.8 |
| Optic chiasm (Gy) | |||
| D2% | 0.1 | 34.7 | 9.4 |
| Dmean | 0.1 | 31.1 | 6.5 |
| Eye (Gy) | |||
| D2% | 0.0 | 23.2 | 6.0 |
| Dmean | 0.0 | 12.4 | 3.2 |
| Lens (Gy) | |||
| D2% | 0.0 | 10.2 | 3.6 |
| Dmean | 0.0 | 9.2 | 2.6 |
D2% = dose to 2% of the volume, D98% = dose to 98% of the volume, D50% = dose to 50% of the volume, Dmean = mean dose of the volume.