Table 4.
The dosimetric indices for the organs at risk (OARs).
| Variables | Treatment Plans | P-Value | |
|---|---|---|---|
| 6X_FF (Mean±SD) | 6X_FFF (Mean±SD) | ||
| Spinal Cord (Dmax) (Gy) | 37.97±4.89 | 34.24±4.60 | 0.06 |
| Lungs V5Gy (%) | 77.97±17.03 | 75.97±16.82 | 0.77 |
| Lungs V10Gy (%) | 60.95±13.42 | 56.44±13.15 | 0.41 |
| Lungs V20Gy (%) | 24.96±9.65 | 22.08±8.65 | 0.44 |
| Lungs Mean (Gy) | 15.00±2.94 | 12.62±2.53 | 0.04 |
| Heart V20% (%) | 46.46±22.86 | 40.51±20.20 | 0.5 |
| Heart V30% (%) | 23.17±11.80 | 19.54±10.45 | 0.43 |
| Heart V40% (%) | 11.45±5.57 | 9.16±4.26 | 0.27 |
| Heart Mean (Gy) | 20.87±7.95 | 18.52±7.02 | 0.45 |
FF: Flattened Filter, FFF: Flattened Filter Free, SD: Standard Deviation, Dmax: Maximum Dose, Vxx: XX Gy dose received by % of the volume