听神经瘤的MRI诊断与治疗方法选择  

The Choice of Therapeutic Methods and MRI Diagnosis of Acoustic Neuroma

作　　者：杨纪周 王建坤[1] 皇甫幼田 薛鹏[1] 弓莉[1] 

机构地区：[1]郑州市第五人民医院放射科,河南郑州450003

出　　处：《实用放射学杂志》2005年第10期1027-1029,共3页Journal of Practical Radiology

摘　　要：目的探讨听神经瘤的MRI诊断与治疗方法的合理选择.方法搜集60例听神经瘤的临床及MRI影像资料,其中48例手术治疗,12例保守及伽玛刀治疗,随访时间1～4年.结果肿瘤单侧58例,双侧2例,共62个肿瘤, T1WI呈均匀略低信号28个,低等混杂信号30个,等信号4个;T2WI呈略高信号38个,高信号24个;病侧Ⅶ、Ⅷ脑神经增粗32例,48例(50个肿瘤)Gd-DTPA增强后肿瘤呈均匀强化24个,不均匀或环状强化26个;手术切除仍是听神经瘤治疗的主要选择.结论 MRI是诊断听神经瘤最有效的手段,能指导临床治疗方案的选择与实施.Objective To evaluate the choice of therapeutic methods and MRI diagnosis of acoustic neuroma. Methods The MRI imaging and clinical materials of 6 0 patients with acoustic neuroma were analyzed , 4 8 eases were underwent an operation , 1 2 eases were treated conservatively or gamma knife treatment , follow - up ranged from 1 to 4 years . Results There were 6 2 tumors round the internal auditory canal . There were 5 8 eases with single acoustic neuroma and two eases with couples acoustic neuroma . 2 8 tumors demonstrated hypointense and 30 tumors demonstrated hypo - and isointense signals on Tt weighted image . 38 tumors demonstrated hyperintense and 24 tumors demonstrated hyper - and isointense signals on T2 weighted image . The Ⅶ , Ⅷ nerves affected side were thickened than that of opposite side in 32 patients. After Gd - DTPA administration 24 tumors were homogeneously enhanced, 26 tumors were inhomogeneously or circularly enhanced in 50 acoustic neuromas of 48 eases. Operation was still the main election for acoustic neuroma. Conclusion MRI is an effective method in the diagnosis of acoustic neuroma,and providing advice for clinics in making therapeutic programs.

关 键 词：听神经瘤 磁共振成像 治疗方法 

分 类 号：R739.41[医药卫生—肿瘤] R445.2[医药卫生—临床医学]