Table 3. Doses to critical organ structures associated with base-of-skull treatment of recurrent paranasal sinus tumors and adenoid cystic carcinoma of the nasopharynx.
| Radiation Dose to Organs at Risk, in Gy(RBE) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Patient | Brain- stem (max) | Spinal Cord (max) | Right Optic Nerve (max) | Left Optic Nerve (max) | Optic Chiasm (max) | Right Cochlea (mean) | Left Cochlea (mean) | Right Parotid (mean) | Left Parotid (mean) |
| 11 | 54.4 | 45.8 | 47.5 | 48.5 | 55.0 | 19.8 | 35.5 | 18.6 | 46.2 |
| 12 | 56.7 | 40.6 | 25.0 | 23.3 | 34.3 | 62.0 | 63.1 | 24.3 | 24.4 |
| 13 | 59.0 | 38.3 | 48.4 | 29.8 | 54.2 | 72.3 | 33.8 | 24.4 | 8.6 |
| 14 | 22.8 | 7.3 | 51.7 | 50.4 | 51.2 | 30.6 | 15.2 | 34.0 | 21.5 |
| 15 | 18.6 | 5.8 | 0.0 | 24.6 | 38.6 | 64.4 | 7.1 | 14.9 | 9.6 |