Table 1. Planning directives for reference plan.
GTV, gross tumor volume; PTV, planning tumor volume; V95%, volume receiving 95% of the dose; Dmax, maximum point dose; Dmean, mean dose; V3000 cGy, volume receiving 3000 cGy dose
| Structure | Clinical goal | Priority | Reference plan |
| GTV_Phase I 54 Gy | V95% ≥ 95% | 1 | 100% |
| GTV_Phase II 5.4 Gy | V95% ≥ 95% | 1 | 99.9% |
| PTV_Phase I 54 Gy | V95% ≥ 95% | 1 | 87.5% |
| Dmax ≤ 105% | 1 | 0% | |
| PTV_Phase II 5.4 Gy | V95% ≥ 98-95% | 1 | 88.1% |
| Dmax ≤ 105% | 1 | 0% | |
| Both lungs | V2000 cGy < 20% | 2 | 8.6% |
| V500 cGy <50% | 2 | 34.8% | |
| Dmean ≤ 2000 cGy | 2 | 648 cGy | |
| Esophagus | Dmean ≤ 3400 cGy | 3 | 2459 cGy |
| Phase I Dmax < 5400 cGy | 1 | 5396 cGy | |
| Phase II Dmax < 540 cGy | 4 | 531 cGy | |
| Spinal canal | Dmax < 2500 cGy | 2 | 2170 cGy |
| Heart | Dmean ≤ 3000 cGy | 2 | 0% |
| V3000 cGy < 30% | 2 | 67 cGy | |
| Larynx | Dmean ≤ 4400 cGy | 3 | 122 cGy |
| Thyroid gland | Dmean ≤ 3000 cGy | 4 | 2823 cGy |