体积较大的脑膜瘤行单次X刀治疗后容易出现瘤周水肿,导致颅内高压,病人不能忍受,治疗失败,需再次开颅手术减压。为此分两次行X刀治疗,减少单次照射体积, 分开瘤周水肿高峰出现的时间,是X刀治疗大脑膜瘤新兴的手段。我院用X刀治疗脑膜瘤共5例,获得满意的疗效。本文总结经验,探讨该手段对大脑膜瘤的治疗价值。 Larger meningioma after a single X-knife treatment prone to peritumoral edema, leading to intracranial hypertension, the patient can not stand, treatment fails, need to re-craniotomy decompression. To do this in two X-knife treatment to reduce the volume of a single shot, the peak time of peritumoral edema, the X knife is a new means of treatment of meningioma. X-knife treatment of meningioma in a total of 5 cases, to obtain satisfactory results. This article summarizes the experience to explore the means of treatment of meningioma value.