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作者用6MeV直线加速器对60例64个复发性或不能手术的颅内肿瘤作立体定向放射外科治疗,对其结果和证实有并发症的14例回顾分析。64个肿瘤中61个的计算机治疗计划可供参考,对肿瘤体积与CT确定的所有邻近正常组织用非一致的近7500个剂量点随机样品计算了积分剂量体积直方图,估计体积的随机误差为2%～4%,也计算了最大肿瘤量、最大正常组织量、肿瘤量不均匀、平均剂量以及在直方图上7500个剂量点的肿瘤体积。中数随
The authors used six MeV linear accelerator on 64 cases of 64 recurrent or inoperable intracranial tumors for stereotactic radiosurgery, and its results and confirmed the complications of 14 cases of retrospective analysis. Sixty-four of 64 tumors were included in the computerized treatment plan for reference, and all adjacent normal tissue with tumor volume and CT were calculated using a non-uniform random sample of nearly 7500 dose points to calculate the dose-dose histogram. The estimated random error of the volume was From 2% to 4%, the maximum tumor amount, the maximum normal tissue amount, the uneven tumor amount, the average dose, and the tumor volume at the 7500 dose points on the histogram were also calculated. With the number of