Table 3.
Comparison of mean EQD2 for tumor and selected normal tissues of unadapted and adapted 66 Gy plans.
| Unadapted 66 Gy (SD) | Adapted 66 Gy (SD) | p-values | |
|---|---|---|---|
| D95% CTV PT | 53.5 (1.1) | 54.3 (1.1) | p<0.01 |
| D95% ITV PT | 53.7 (1.5) | 54.3 (1.3) | p>0.05 |
| D95% CTV LN | 53.4 (1.3) | 53.3 (2.2) | p>0.05 |
| D95% ITV LN | 53.7 (1.8) | 54.1 (1.6) | p>0.05 |
| Lungs mean | 12.6 (2.6) | 12.6 (2.7) | p>0.05 |
| Heart mean | 5.7 (6.8) | 5.7 (6.8) | p>0.05 |
| Esophagus mean | 14.7 (6.3) | 15.0 (6.1) | p>0.05 |
| Spinal cord max | 16.3 (4.2) | 16.5 (3.2) | p>0.05 |
| Aorta max | 67.2 (3.6) | 67.4 (4.1) | p>0.05 |
| Airways max | 71.0 (2.4) | 71.6 (2.2) | p>0.05 |
CTV: clinical target volume; D95% dose in 95% of the volume; ITV: internal target volume; NTD: EQD2: dose equivalent to 2 Gy dose.