【摘要】 目的探讨CT、磁共振动脉成像(MRA)检查对于后循环缺血性眩晕的诊断价值。方法选取临床表现为后循环缺血性眩晕的患者40例接受CT、MRA及数字减影血管造影(DSA)检查,以DSA检查结果作为金标准,探讨CT、MRA诊断后循环缺血眩晕的诊断学价值。结果40例后循环缺血性眩晕患者,CT检查发现脑梗死病灶患者11例,检出率为27.50%。MRA检查,双侧椎动脉A型44条,B型8条,C型9条,D型9条,正常14条;基底动脉:A型24条,B型4条,C型6条,正常6条;MRA诊断后循环缺血性眩晕的灵敏度为93.27%,特异度为81.25%,漏诊率为6.73%,误诊率为18.75%;CT诊断后循环缺血性眩晕的灵敏度为27.78%,特异度为75.00%,漏诊率为72.22%,误诊率为25.00%。结论 MRA检查对于后循环缺血性眩晕具有较高的诊断价值,且具有无创性的优点。更多还原

【Abstract】 Objective To investigate the diagnostic value of CT and magnetic resonance angiography(MRA)in patients with posterior circulation ischemic vertigo.Methods Forty patients with posterior circulation ischemic vertigo from February 2016 to December 2016 were selected in this study.All patients received the CT,MRA and digital subtraction angiography(DSA)examination.Based on the DSA examination results(gold standard),we evaluated the diagnostic value of CT and magnetic resonance angiography(MRA)in patients with posterior circulation ischemic vertigo.Results CT found that cerebral infarction in patients with a total of 11 cases;the detection rate was 27.50%.MRA examination revealed 44 type A,8 type B,9 type C,9 type D and 14 normal type of bilateral vertebral arteries;24 type A,4 type B,6 type C and 6 normal basilar arteries;The sensitivity of MRA diagnosis of pciv was 93.27%,the specificity is 81.25%,the miss rate was 6.73%,the misdiagnosis rate was 18.75%;the sensitivity of CT diagnosis of pciv was 27.78%,the specificity was 75%,the miss rate was 72.22%,the misdiagnosis rate was 25%.Conclusion MRA examination has a high diagnostic value for posterior circulation.更多还原