Parameters | HT | VMAT | IMRT | 3D-CRT | p-Value | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|
HT VS. VMAT | HT VS. IMRT | HT VS. 3D-CRT | VMAT VS. IMRT | VMAT VS. 3D-CRT | IMRT VS. 3D-CRT | ||||||
Optic chiasm | Dmax (Gy) | 48.48 ± 1.52 | 47.13 ± 1.33 | 46.50 ± 1.17 | 48.13 ± 0.94 | 0.016 | 0.020 | 0.761 | 0.174 | 0.340 | 0.162 |
Dmean (Gy) | 38.01 ± 2.95 | 37.75 ± 2.44 | 37.77 ± 1.57 | 40.75 ± 1.60 | 0.880 | 0.908 | 0.210 | 0.984 | 0.108 | 0.046 | |
Left optic nerve | Dmax (Gy) | 49.43 ± 2.42 | 46.62 ± 3.12 | 47.01 ± 3.31 | 46.87 ± 3.37 | 0.007 | 0.033 | 0.053 | 0.264 | 0.724 | 0.834 |
Dmean (Gy) | 45.56 ± 2.86 | 41.81 ± 3.59 | 38.01 ± 3.66 | 36.92 ± 4.98 | 0.002 | 0.000 | 0.012 | 0.007 | 0.049 | 0.609 | |
Right optic nerve | Dmax (Gy) | 50.32 ± 0.75 | 48.02 ± 1.02 | 48.23 ± 1.09 | 49.08 ± 1.22 | 0.002 | 0.018 | 0.281 | 0.774 | 0.300 | 0.272 |
Dmean (Gy) | 45.95 ± 1.83 | 42.02 ± 2.23 | 37.85 ± 2.73 | 36.70 ± 4.39 | 0.001 | 0.002 | 0.024 | 0.058 | 0.152 | 0.570 | |
Left eye | Dmax (Gy) | 45.74 ± 2.81 | 45.39 ± 4.24 | 44.15 ± 3.79 | 51.35 ± 3.12 | 0.859 | 0.329 | 0.003 | 0.264 | 0.005 | 0.000 |
Dmean (Gy) | 21.36 ± 2.23 | 22.43 ± 2.64 | 15.15 ± 2.17 | 22.01 ± 5.09 | 0.550 | 0.008 | 0.881 | 0.001 | 0.914 | 0.072 | |
Right eye | Dmax (Gy) | 44.90 ± 2.17 | 43.56 ± 2.31 | 39.78 ± 4.19 | 49.71 ± 3.45 | 0.213 | 0.090 | 0.084 | 0.116 | 0.007 | 0.000 |
Dmean (Gy) | 20.49 ± 2.12 | 19.94 ± 2.37 | 13.34 ± 2.34 | 19.45 ± 5.10 | 0.745 | 0.005 | 0.805 | 0.000 | 0.881 | 0.070 | |
Left lens | Dmax (Gy) | 8.00 ± 1.09 | 10.90 ± 1.15 | 7.75 ± 0.70 | 15.27 ± 6.30 | 0.043 | 0.815 | 0.303 | 0.001 | 0.511 | 0.254 |
Dmean (Gy) | 5.41 ± 0.67 | 8.93 ± 0.72 | 6.39 ± 0.52 | 11.40 ± 6.65 | 0.002 | 0.228 | 0.404 | 0.000 | 0.719 | 0.460 | |
Right lens | Dmax (Gy) | 7.43 ± 0.89 | 9.33 ± 0.44 | 7.00 ± 0.49 | 13.92 ± 6.53 | 0.118 | 0.693 | 0.373 | 0.000 | 0.488 | 0.301 |
Dmean (Gy) | 4.83 ± 0.41 | 8.05 ± 0.46 | 5.92 ± 0.46 | 10.98 ± 6.54 | 0.000 | 0.083 | 0.382 | 0.000 | 0.662 | 0.450 | |
Spinal cord | Dmax (Gy) | 18.94 ± 4.76 | 21.67 ± 5.46 | 19.02 ± 4.30 | 19.65 ± 5.36 | 0.236 | 0.968 | 0.806 | 0.086 | 0.615 | 0.852 |
Dmean (Gy) | 2.70 ± 0.76 | 2.43 ± 0.67 | 2.20 ± 0.63 | 2.23 ± 0.51 | 0.363 | 0.060 | 0.191 | 0.024 | 0.438 | 0.895 | |
Brainstem | Dmax (Gy) | 30.60 ± 4.41 | 38.46 ± 1.70 | 35.56 ± 1.73 | 33.74 ± 4.21 | 0.044 | 0.168 | 0.090 | 0.000 | 0.189 | 0.601 |
Dmean (Gy) | 19.15 ± 3.27 | 25.98 ± 1.48 | 25.24 ± 1.62 | 20.72 ± 3.05 | 0.097 | 0.081 | 0.652 | 0.471 | 0.191 | 0.181 | |
Left parotid | Dmax (Gy) | 29.48 ± 4.46 | 26.34 ± 5.31 | 25.78 ± 4.60 | 34.16 ± 6.78 | 0.031 | 0.010 | 0.212 | 0.622 | 0.015 | 0.039 |
Dmean (Gy) | 14.51 ± 3.02 | 11.51 ± 2.97 | 10.87 ± 2.72 | 13.66 ± 4.05 | 0.007 | 0.000 | 0.577 | 0.230 | 0.256 | 0.133 | |
Right parotid | Dmax (Gy) | 25.27 ± 4.77 | 22.38 ± 5.59 | 23.68 ± 5.51 | 28.48 ± 7.38 | 0.031 | 0.232 | 0.454 | 0.095 | 0.110 | 0.156 |
Dmean (Gy) | 12.20 ± 4.06 | 11.08 ± 3.53 | 10.31 ± 3.14 | 13.14 ± 4.63 | 0.372 | 0.280 | 0.578 | 0.243 | 0.220 | 0.144 |