脑胶质瘤伽玛刀术后MR影像学分析(附106例分析)  

Study on MR Imaging of Gliomas Treated by Gamma Knife( An Analysis of 106 Cases )

作　　者：郭轶虹[1] 吴锡标[1] 何咏[1] 

机构地区：[1]广州医学院第二附属医院伽玛刀中心,广东广州510260

出　　处：《实用放射学杂志》2004年第5期401-403,共3页Journal of Practical Radiology

摘　　要：目的　评价脑胶质瘤伽玛刀疗效及放射反应特点。方法　分类型分阶段对 10 6例脑胶质瘤患者伽玛刀术后复查的 189份MR资料进行归纳分析。结果　室管膜瘤及少枝胶质疗效最好 ,其次为星形细胞瘤Ⅰ～Ⅱ级 ,星形细瘤Ⅲ～Ⅳ级疗效欠佳。星形细胞瘤Ⅰ～Ⅱ级术后 1年内有效率高于术后 2～ 3年。术后第 2年是灶周水肿及特征性的放射性强化发生的高峰期。结论　伽玛刀是治疗胶质瘤的一种有效方法 ,尤其是室管膜瘤、少枝胶质瘤及星形细胞瘤Ⅰ～Ⅱ级。其放射反应性的灶周水肿及病灶强化具有可逆性。Objective To evaluate the effectiveness of gamma knife and radioactive effect for glioma.Methods MR images of 106 cases with glioma treated by gamma knife were analysed based on classified.Results The effectiveness of gamma knife was the best for ependyoma and oligodendroglioma,the secondly for astocytoma (Ⅰ～Ⅱ) .The effectiveness for astrocytoma( Ⅲ～Ⅳ)was not well.The effective rate in 1 year after treament for astocytoma(Ⅰ～Ⅱ)was far higher than 2～3 years later.The 2nd year after treatment was the peak time for edema around tumor and the special radioactive contrast enhancement on MR.Conclusion Gamma knife is a effective therapy for glioma,especially for ependyoma,oligodendroglioma and astocytoma(Ⅰ～Ⅱ).The radioactive effect showed as edema and radioactive contrast enhancement on MR can become smaller or disappear 2 years later after treament.

关 键 词：脑胶质瘤 伽玛刀 术后诊断 影像学检查 磁共振成像 

分 类 号：R739.41[医药卫生—肿瘤] R730.4[医药卫生—临床医学]