空军总医院与天坛医院合作从1992年1月开始,用等中心直线加速器开展立体定向放射性外科治疗(SRS).到1992年11月底已治疗各类颅内疾病126例,其中3例为脑转移瘤.单次照射肿瘤边缘剂量为28~35cGy,均收到满意近期疗效.CT检查3例转移灶于18周内完全消失,神经系统症状得到迅速改善.其中2例于SRS后5个月和6个月分别死于全身转移,另1例已健康存活13个月.作者在讨论中强调SRS配合全脑常规放疗的重要性. Air Force General Hospital and Tiantan Hospital began collaborating with Tiantan Hospital to conduct stereotactic radiosurgery (SRS) with an isocentric linear accelerator from January 1992. By the end of November 1992, 126 cases of various types of intracranial diseases had been treated, of which 3 were brain metastases Tumor.The single dose of 28 ~ 35cGy at the edge of tumor showed satisfactory short-term curative effect.CT in 3 cases completely disappeared in 18 weeks and the symptoms of the nervous system were rapidly improved.Of the 2 cases, 6 months died of systemic metastases, and the other one has been healthy for 13 months. The author in the discussion stressed the importance of SRS with whole-brain conventional radiotherapy.