CT、MRI和磁共振动脉成像对后循环缺血性眩晕的诊断价值

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...

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

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.