Table 1 Estimated risk of radiation-induced cancer by radiation delivery technique following spinal irradiation for childhood medulloblastoma
| Radiation delivery technique | Risk of radiation-Induced cancer, % |
|---|---|
| Intensity modulated x-ray beam | 30 |
| Electron beam | 21 |
| Conventional x-ray beam | 20 |
| Intensity modulated electron beam | 15 |
| Intensity modulated proton beam | 4 |