From: Spinal radiosurgery - efficacy and safety after prior conventional radiotherapy

Parameter | Value |
---|---|

Prescription dose (Gy) 70% isodose | |

Median | 18 |

Mean | 18.1 |

Range | 10-28 |

95% C.I. | 17-18 |

Dose maximum (GTV) | |

Median | 25.7 |

Mean | 26.8 |

Range | 20-43 |

95% C.I. | 23.9-28.6 |

Dose minimum (GTV) | |

Median | 12.2 |

Mean | 12 |

Range | 3.8-20.3 |

95% C.I. | 11.4-12.7 |

Peripheral isodose (%) | |

Median | 70 |

Mean | 67 |

Range | 50-80 |

95% C.I. | 65-70 |

No. of beams/site or lesion | |

Median | 215 |

Mean | 207 |

Range | 64-341 |

95% C.I. | 182-239 |

10 Gy irradiated volume (cc) | |

Median | 95 |

Mean | 120 |

Range | 0.6-479 |

95% C.I. | 63-132 |

> 8 Gy volume of spinal cord (cc) | |

Median | 0.74 |

Mean | 1.4 |

Range | 0-9.3 |

95% C.I. | 0.4-1.2 |