Table 1 Dosimetric results of the four treatment plans.
Treatment Plan | Two opposite photons | VMAT | 4-MeV electron arc | 6-MeV electron arc |
|---|---|---|---|---|
Target mean dose (Gy) | 30.00 | 30.00 | 30.00 | 30.00 |
Target maximum dose (Gy) | 31.84 | 34.20 | 41.54 | 47.64 |
D2%,PTV (Gy) | 30.85 | 31.72 | 38.57 | 37.16 |
D5%,PTV (Gy) | 30.85 | 31.26 | 37.62 | 35.83 |
Target minimum dose (Gy) | 26.41 | 24.23 | 0.34 | 15.15 |
D98%,PTV (Gy) | 28.90 | 28.32 | 15.78 | 23.35 |
D95%,PTV (Gy) | 29.24 | 28.72 | 19.50 | 24.97 |
HI (D2%,PTV/D98%,PTV) | 1.12 | 1.08 | 2.44 | 1.59 |
HI (D5%,PTV/D95%,PTV) | 1.09 | 1.06 | 1.93 | 1.44 |
CI (V95%/Target volume) | 0.99 | 0.97 | 0.65 | 0.67 |
Maximum dose to soft tissue (Gy) | 31.84 | 34.06 | 33.06 | 39.48 |
Mean dose to soft tissue (Gy) | 29.76 | 21.94 | 7.05 | 15.3 |
Maximum dose to bones (Gy) | 31.52 | 33.52 | 30.62 | 36.21 |
Mean dose to soft bones (Gy) | 29.63 | 20.96 | 1.03 | 7.8 |
