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脑干星状细胞瘤3年生存率很低,手术对颈段脊髓囊性及外生性肿瘤有价值,常规放疗能控制75％～90％内生性脑干胶质瘤的生长,但5年生存率仅25％～43％。有人推荐对不能手术切除、经组织学证实的低恶性脑干胶质瘤作~(192)Ir或~(125)I组织间放疗。为证实这种立体定向放疗的效果,作者分析了1974～1985年89例经组织学证实不能手术切除的低恶性脑干星状细胞瘤。其中男49例,
3-year survival rate of brain stem astrocytoma is very low, the operation of cervical spinal cord cystic and exogenous tumors of value, conventional radiotherapy can control 75% to 90% of endogenous brain stem glioma growth, but 5-year survival The rate is only 25% ~ 43%. It is recommended for non-surgical resection, histologically proven low-grade brain stem glioma for ~ (192) Ir or ~ (125) I tissue between the radiotherapy. To confirm the efficacy of this stereotactic radiotherapy, the authors analyzed 89 patients with histologically confirmed, unresectable, low-grade benign astrocytoma from 1974 to 1985. 49 cases of male,