椎基底动脉供血不足性眩晕TCD和DSA的对比分析

目的探讨经颅多普勒超声（Transcranial Doppler TCD）与数字减影血管造影（digital sub-straction angiography DSA）在椎基底动脉供血不足（vertebrobasilar Insufficiency VBI）性眩晕中的应用价值，从而对眩晕的血管原因进行分析。方法共33例患者，男23例，女10例，年龄29—75岁，平均（56．2±6．7）岁，符合椎基底动脉供血不足诊断标准，所有患者于1周内行TCD和DSA检查。结果33例患者中TCD显示椎基底动脉系统异常29例（87．88％），DSA显示椎基底动脉异常12例（36．7％），颈内动脉系统异常14例（42．4％），无血管异常7例（21．2％）。结论椎基底动脉供血不足的原因可能是椎基底动脉系统病变，也可能是前循环缺血的表现或功能性因素，TCD对椎基底动脉供血不足具有重要诊断意义，DSA是诊断椎基底动脉供血不足的金标准。

Objective To study the value of TCD and CVA on diagnosing vertebrobasilar Insufficiency （VBI） ,then analyse the vascular reason of vertigo. Methods 33 cases patients which were diagnosed as VBI （ m 23 cases, f 10 cases） （SG. 2 ±6. 7 years old） were examed by TCD, DSA in one week. Results TCD showed vertebrobasilar artery abnormalitiesin 29 cases （87.88%）, DSA showed vertebrobasilar artery abnormalities in 12 cases （36. 36% ）. crotid artery system abnormalities 14cases （42. 42% ）, the others were normalities （21.21%）. Conclusion The reason of VBI is perhaps caused by vertebrobasilar artery disease or carotid artery disease, or functional disease. TCD have important role on diagnosising VBI, DSA is garden standard of diag- nosising VBI.