MRI在Arnold－ChiariⅠ型畸形诊断中的应用（附50例分析）  

MRI Diagnosis in Arnold-Chiari I Malformation(An Analysis of 50 Cases)

作　　者：程敬亮[1] 李树新[1] 王秀玉[1] 任翠萍[1] 李荫太[1] 王建平[1] 腾军放[1] 

机构地区：[1]河南医科大学第一附属医院磁共振室,河南医科大学第一附属医院神经科

出　　处：《实用放射学杂志》1995年第4期195-198,共4页Journal of Practical Radiology

摘　　要：笔者对ＭＲＩ证实的５０例Ａｒｎｏｌｄ－ＣｈｉａｒｉＩ型畸形（ＡＣＭ－Ｉ）进行分析。依小脑扁桃体下疝程度不同分为１～１０ｍｍ（３０例）和１１～２３ｍｍ（２０例）两组。另有５０例ＭＲＩ证实为非Ｃｈｉａｒｉ畸形者为对照组。全部测定枕大孔前后径。结果表明，ＡＣＭ－Ｉ枕大孔前后径增大和脊髓空洞症发生率均与小脑扁桃体下疝程度成正相关。文内对Ｃｈｉａｒｉ畸形的病因和发病机制以及ＡＣＭ－Ｉ诊断标准等进行了讨论。An analysis of 50 patients with Arnold-Chiari I malformation(ACM-I)verified by MRIwas presented.According to the degree of cerebellartonsil downward herniation,they were divided into twogroups:1～10mm(30 cases)and 11～23mm(20 cases).50 cases of non-Chiari malformation verified byMRI were considered as controls. The anteroposterior diameter of the foramen magnum(APDFM)was mea-sured in all cases.The results demonstrated that there was a positive correlation between APDFM enlarge-ment or syringomyelia incidence in ACM-I and the degree of tonsil downward herniation. The pathogenesis,mechanism and diagnostic criteria of ACM-I were discussed.

关 键 词：脑 NMR 成像 后脑畸形 ACM-1 

分 类 号：R816.1[医药卫生—放射医学]