摘要
本文报告应用直线加速器放射外科技术治疗深部脑肿瘤及脑血管畸形６３例。放射外科的基本方法是通过ＣＴ或ＤＳＡ立体定向确定靶点坐标，采用直线加速器的放射源及治疗床交叉旋转及等中心聚焦照射，达到破坏肿瘤细胞及促使血管闭塞的目的。这种技术对于手术难以达到的脑深部病变，特别是小型脑瘤及脑血管畸形具有独特的疗效。
ixty-three
patients with deep brain tumors andarteriovenous
mal1ormations(AVMs)of thebrain were treated with linear
accelerator(LINAC)in radiotherapy. The technique is based on
amultiple intersecting arc irradiation after the lession was
localaazated with CT and DSA. It hasbeen proved that it is a safe and
effective wav to inaccssible cerebral lesions in particular the
smalltumors andAvMs.
