Table 1.
Comparison of dose parameters for the planning target volume between Tomotherapy and 3-dimensional conformal radiation therapy
| Parameters | Tomotherapy | 3D-CRT | p value |
|---|---|---|---|
| Mean dose (Gy) |
25.58 ± 0.35 |
25.19 ± 0.74 |
0.043 |
| V23.25Gy (%) |
99.45 ± 0.57 |
99.37 ± 0.86 |
0.225 |
| V26.25Gy (%) |
10.03 ± 25.66 |
10.28 ± 7.52 |
0.485 |
| V27.5Gy (%) |
0.26 ± 0.87 |
0.10 ± 0.12 |
0.414 |
| Dmin (Gy) |
17.97 ± 1.93 |
22.05 ± 2.76 |
< 0.001 |
| Dmax (Gy) |
27.28 ± 0.73 |
27.18 ± 0.38 |
0.588 |
| RCI |
1.01 ± 0.00 |
1.00 ± 0.00 |
0.120 |
| rDHI | 0.70 ± 0.01 | 0.83 ± 0.04 | < 0.001 |
RCI radiation conformality index.
rDHI radical dose homogeneity index.
Dmin minimum dose irradiated to the planning target volume.
Dmax maximum dose irradiated to the planning target volume.
VnGy percentage of the volume receiving radiation ≥ n Gy.
3D-CRT 3-dimensional conformal radiation therapy.