| Structure | Constraint | |
|---|---|---|
| PTV | D95% | ≥94% |
| PTV | V95% | ≥94% |
| PTV | D05% | ≤115% |
| Lung | V20Gy to contralateral lung | 7% of contralateral volume |
| V5Gy to contralateral lung | 25% of contralateral lung volume | |
| Mean contralateral lung dose | 8 Gy | |
| Combined lungs | V20Gy | 37–40% |
| NTCP | 25% | |
| Mean dose | 20 Gy | |
| Cord | Max point dose | 50 Gy |
| Heart | V30Gy | <50% of total volume |
| Esophagus | V60Gy | 17% |
| Mean dose | 34 Gy | |
| Bowel | Max point dose | 55 Gy |
| D05% | 45Gy | |
| Liver | V30Gy | 50% of volume |
| Stomach | Mean dose | 30 Gy |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.