The Application Research of Carotid Artery Severe Stenosis After Interventional Therapy by TCD and CDFI

Objective:To investigate the value of carotid artery severe stenosis after endovascular stenting by Doppler sonography(TCD) and Color Doppler flow Imaging(CDFI).Methods:38 cases with carotid artery severe stenosis were examined after interventional therapy by TCD and CDFI,in order to evaluate the Carotid artery morphology and hemodynamic.Results:38 cases with the carotid artery stenosis and the degree of stenosis of more than 70%,after endovascular stenting,the diemeters increased,the blood velocity decreased,The stenosis disappeared,Open lateral branch closed,Hemodynamic the parameters improved significantly by TCD and CDFI,the results which were examined by TCD and CDFI were consistent with the results by digital subtraction angiography(DSA).Conclusion:Diagnosis by CDFI had the higher the accuracy of the carotid artery severe stenosis.TCD combined with CDFI improve the accuracy of the diagnosis about carotid artery severe stenosis and become a very important method for assessing and following up curative effect of carotid artery stent.