Table 3 Dose Constraints for Planning.
From: Dosimetric impact of target definitions on normal structures in head and neck cancer
| Structure | Maximum | Minimum |
|---|---|---|
| PTV-HD | <20% volume >110% Rx |
<1% volume <93% Rx >95% volume >100% Rx |
| PTV-ID |
<1% volume <93% Rx >95% volume >100% Rx | |
| PTV-ED |
<1% volume <93% Rx >95% volume >100% Rx | |
| Parotid |
Mean dose <26 Gy or 50% volume <30 Gy | |
| Cord | <0.03 cc >48 Gy |