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目的：提高Ｘ刀治疗脑转移瘤的认识。方法：用Ｘ刀治疗脑转移瘤３１ 例并随访２～２４月，其中单发病灶１４例，多发病灶１７例。共７２ 个病灶。结果：脑转移瘤较小者，完全缓解率高，较大者（＞ ４ ｃｍ ）经分次治疗也有较高的缓解率。结论：单发病灶经Ｘ刀治疗后半年，１年存活率高。对多发病灶更显优越。需配合全脑放疗及化疗。否则易产生新病灶。
Objective: To improve X knife treatment of brain metastases awareness. Methods: Thirty-one patients with brain metastases were treated with X knife and followed up for 2-24 months. There were 14 cases of single lesions and 17 cases of multiple lesions. A total of 72 lesions. Results: The patients with smaller brain metastases had a higher complete remission rate. The larger ones (> 4 cm) had higher remission rates after fractionated treatment. Conclusion: Single-stage lesion treated by X-knife after six months, 1-year survival rate. Multiple lesions more superior. Need to cooperate with whole brain radiotherapy and chemotherapy. Otherwise easy to produce new lesions.