Table 1 Dosimetric parameters describing the differences between the standard parallel-opposed pair beam arrangement vs. the proposed esophageal-sparing ES-IMRT plans
Parameter | Parallel-opposed pair plan | ES-IMRT esophagus sparing plan |
|---|---|---|
D99 (GTV) | 28.0 ± 1.0 Gy | 24.7 ± 1.4 Gy |
D95 (GTV) | 28.9 ± 8.8 Gy | 28.8 ± 4.8 Gy |
D5 (GTV) | 34.0 ± 14 Gy | 32.9 ± 7.4 Gy |
D99 (PTV) | 26.5 ± 2.5 Gy | 22.0 ± 0.8 Gy |
D95 (PTV) | 28.1 ± 4.6 Gy | 25.9 ± 3.6 Gy |
D5 (PTV) | 33.8 ± 12 Gy | 32.7 ± 4.4 Gy |