立体定向放射外科是一种微侵袭性的神经外科新技术，在治疗脑血管畸形和功能性疾病小起着重要作用，颇受国内外学者的重视，目前立体走向放对外村在临床应用较多的有＿刀和等中心直线加速器放射外十（X一刀）。已得到医疗界的普遍重视，但由于＿刀价格昂贵．操作复杂，难以在临 Stereotactic radiosurgery is a new and minimally invasive neurosurgical technique that plays an important role in the treatment of small cerebrovascular malformations and functional diseases. It is well received by scholars at home and abroad. At present, there are more clinical applications There are _ knife and isocentric linear accelerator X (X-knife). Has received universal attention in the medical community, but because _ knife expensive. Complex operation, difficult to come