CT、MRI和磁共振动脉成像对后循环缺血性眩晕的诊断价值  

Diagnostic values of CT,MRI,MRA in assessment of posteriorcirculation ischemia vertigo

作　　者：路虹[1] 王团[1] 张燕卓[1] 徐鸥[1] 高国栋[1] 朱庆文[1] 

机构地区：[1]河北医科大学第二医院耳鼻咽喉科,河北石家庄050000

出　　处：《中国耳鼻咽喉头颈外科》2011年第11期581-584,共4页Chinese Archives of Otolaryngology-Head and Neck Surgery

摘　　要：目的探讨CT、MRI和磁共振动脉成像(magnetic resonance angiography,MRA)对后循环缺血性眩晕的诊断价值。方法采用GE Light Speed 4层或1 6层螺旋CT扫描仪、Signa Excite3.0T超导磁共振成像设备对32例后循环缺血性眩晕患者行CT、MRI和MRA检查,并对其影像学资料进行分析。结果 32例患者当中,CT与MRI检查结果两个对比组之间的差异具有显著性意义(χ~2=14.076,P=0.000)。11例眩晕患者发病24 h内行CT检查以及MRI检查。CT与MRI检查结果两个对比组之间的差异具有显著性意义(χ~2=12.034,P=0.001)。M RA检查结果为两侧椎动脉:A型34条,B型5条,C型7条,D型7条,B型合并有C型改变的2条,A型合并有B型改变的6条,无异常者3条。基底动脉:A型22条,B型3条,C型3条,A型合并有B型改变的2条,无异常者2条。结论磁共振检查对后循环缺血性眩晕的病因诊断、预后估计及治疗方案的选择都有重要的临床意义。OBJECTIVE To assess the values of CT,MRI and MRA in posterior circulation ischemia vertigo （PCIV） diagnosis.METHODS The imaging data of 32 patients with vertigo,which included the results of CT, MRI and MRA using GE Light Speed 4 or 16 layers MSCT scanner or Signa Excite HD 3.0T high field MR scanner, were studied.RESULTS Significant difference between the results of CT and MRI（x^2=14.076,P=0.000） were detected in this study.11 cases with cerebral infarction were made the CT and MRI inspection in the 24 hours, and the results of CT and MRI consists significant difference（x^2=12.034,P=0.001）.MRA test results showed that the type of arteria vertebralis included 34 cases of type A,5 cases of type B,7 of type C and 7 of type D.2 cases showed the common features of type B and C,6 cases showed the common features of type A and B,as well as 3 cases showed no abnormalities. The morphology of arteria basilarisshowed that,22 cases accorded with type A,3 of type B and 3 of type C2 cases showed the common features of type A and B as well as 2 cases showed no abnormalities.CONCLUSION The magnetic resonance plays an important roles in the clinical diagnosis,prognosis and the estimated treatment plan choice of the PCIV.

关 键 词：眩晕 中枢神经系统疾病 磁共振波谱学 体层摄影术 X线计算机 

分 类 号：R816.1[医药卫生—放射医学]