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1991年5月至1992年12月,作者用γ刀治疗颅内病变600余例,其中观察六个月以上的脑膜瘤患者共40例,42个肿瘤。男13例,女27例,30～91岁,平均55.1岁。肿瘤平均径11.1～46.1mm(横径·纵径·前后径)~(1/3)。平均27.2mm。其中25例经手术后病理确诊,15例据临床及放射学确诊。肿瘤多位于鞍旁、岩骨、斜坡、小脑幕等部位。先用头架固定患者头部行Gd—DTPA增强MRI,T_1加权像的轴位、冠状位像,确定肿瘤部位,在瘤内确定一至数个靶点,计算照射量及腺量分布后用γ刀照射。一般采取局麻,儿童用全麻。次日出院。每三个
From May 1991 to December 1992, the author used γ knife to treat more than 600 cases of intracranial lesions, of which 40 cases of meningiomas and 42 tumors were observed over 6 months. 13 males and 27 females, 30 to 91 years old, with an average of 55.1 years old. Tumor average diameter of 11.1 ~ 46.1mm (diameter · vertical diameter · anteroposterior diameter) ~ (1/3). Average 27.2mm. Among them, 25 cases were diagnosed by pathology after operation and 15 cases were diagnosed by clinical and radiology. Tumors are located in the side of the saddle, rock, slope, tentorium and other parts of the cerebrum. Gd-DTPA-enhanced MRI and T_1-weighted images of the head of the patient were used to fix the head of the patient to determine the tumor site. One to several target sites were determined in the tumor, and the dose and gland distribution were calculated and compared with γ Knife irradiation. General anesthesia, children with general anesthesia. Discharged the next day. Every three