Table 3.
The Dosimetric Parameter for the clinical target volume (PTV) in 6X_FF (Flattened Filter) & 6X_FFF (Flattened Filter Free) intensity-modulated radiation therapy (IMRT) plan.
| Variables | Treatment Plans | P-Value | |
|---|---|---|---|
| 6X_FF (Mean±SD) | 6X_FFF (Mean±SD) | ||
| Dmax (Gy) | 51.97±0.56 | 52.18±0.48 | 0.33 |
| Dmin (Gy) | 43.63±3.40 | 43.49±3.30 | 0.9 |
| Dmean (Gy) | 50.36±0.0 | 50.53 ±0.13 | 0.22 |
| D98% (Gy) | 49.16 ±56.01 | 48.60±85.36 | 0.08 |
| V95% (cc) | 401.49±199.63 | 400.90±198.89 | 0.99 |
| CI | 0.990±0.012 | 0.989±0.013 | 0.83 |
| HI | 0.042±0.018 | 0.055±0.018 | 0.13 |
FF: Flattened Filter, FFF: Flattened Filter Free, Dmax: Maximum Dose, Dmin: Minimum Dose, Dmean: Average dose, SD: Standard Deviation, D98%: Dose received by 98% volume, V95%= Volume receiving 95% dose in cc, CI: Conformity Index, HI: Homogeneity Index