Table 3 All differences among three methods with regard to the DVH-parameters
| Â | P value | |||
|---|---|---|---|---|
| Â | Overall | IMRT vs 3DCRT | IMRT vs RA | RA vs 3DCRT |
CTV | Â | Â | Â | Â |
V95% (%) | 1.00 | -- | -- | -- |
PTV | Â | Â | Â | Â |
V95% (%) | 1.00 | -- | -- | -- |
V100% (%) | 1.00 | -- | -- | -- |
V107% (%) | 0.016 | -- | RA < IMRT * | RA < 3DCRT * |
CI | 0.004 | IMRT < 3DCRT * | RA < IMRT * | RA < 3DCRT * |
HI | 0.69 | -- | -- | -- |
Normal liver | Â | Â | Â | Â |
Dmean (Gy) | 0.001 | IMRT < 3DCRT * | IMRT < RA * | -- |
V40 Gy (%) | 0.004 | IMRT < 3DCRT ** | -- | RA < 3DCRT * |
V30 Gy (%) | 0.004 | IMRT < 3DCRT ** | -- | RA < 3DCRT * |
V20 Gy (%) | 0.004 | IMRT < 3DCRT ** | IMRT < RA * | -- |
V10 Gy (%) | 0.007 | -- | IMRT < RA ** | 3DCRT < RA * |
NTCP | 0.002 | IMRT < 3DCRT ** | -- | RA < 3DCRT * |
Stomach Dmean (Gy) | 0.121 | IMRT < 3DCRT * | -- | -- |
Left Kidney Dmean (Gy) | 0.085 | IMRT < 3DCRT * | -- | -- |
Right Kidney Dmean (Gy) | 0.217 | -- | -- | -- |
Spinal Cord D1% (Gy) | 0.236 | -- | -- | -- |
MU | 0.001 | 3DCRT < IMRT ** | RA < IMRT ** | -- |