颅内转移瘤是指身体其他部位的恶性肿瘤转移到颅内,一般统计颅内转移瘤发生率为25%～30%,在各种癌症中,肺癌,胃肠道癌和乳腺癌的致死数和发生颅内转移数最多[1],如果没有治疗,脑转移瘤患者的生存期仅为一个月[2],所以如何积极开展脑转移瘤患者的治疗,提高疗效已越来越为神经外科医生所关注。由于目前全身恶性肿瘤有手术、放疗、化疗等方法,均不能达到对肿瘤 Intracranial metastasis refers to the transfer of malignant tumors in other parts of the body to the brain, the general incidence of intracranial metastases was 25% to 30%, in a variety of cancers, lung cancer, gastrointestinal cancer and breast cancer deaths And the highest number of intracranial metastases [1], if not treated, the survival of patients with brain metastases is only one month [2], so how to actively carry out the treatment of patients with brain metastases to improve efficacy has become more and more neurosurgical Doctor’s attention. Due to the current systemic malignant surgery, radiotherapy, chemotherapy and other methods, can not reach the tumor