The Clinical Research Of Doppler Ultrasound, DSA Detection With Carotid Arteries Atherosclerosis Patients

ObjectiveTo observe the carotid stenosis in isehemic cerebrovascular disease, analyze the ultrasound characteristic of symptomatic and sympotmatic carotid stenosis.And assess the association between it and the character of carotid atherosclerosis plaque.To compare the result of two dimensional color Doppler ultrasound and DSA,and evaluate the value of Doppler ultrasound monitoring carotid stenosis.MethodsTo detect both 50 carotid atherosclerosis patients and 20 subjects of normal-control group with the doppler ultrasonography.Describe the carotid atherosclerosis plaque,IMT and the stricture of carotid artery. To detect both 50 carotid atherosclerosis patients with DSA.Describe the stricture of carotid artery.Compare the result of stricture of carotid artery with the two different test.Find the relationship from the carotid atherosclerosis plaque,the stricture and the ischemic cerebrovascular disease.Results:1.Find 67 carotid anomaly.61 ones of these are plaques.25 high-echo plaques,10 low-echo plaques,26 combination plaques;9 of combination plaques are ulcer.2.The ultrasound found 13 ulcer plaques,the DSA found 15 ulcer plaques. There is no difference between the two way in Statistically3.Compared with DSA and color Doppler ultrasound,the sensitivity is 80.8%,specificity is 91.1%.4.low-echo plaques initiationCI(100%) in low-grade narrow,combination plaques initiation more CI in serious narrow(66.7%).5.ET shows that the combination plaques' IMT(1.21±0.28mm) are higher than other plaques(p＜0.05).6.ET shows cerebrovascular disease patients' Ep,β,AI,PWVβare higher than normal,AC is lower than normal.Conclusions:1.Combination ultrasound has the well discernment for ulcer plaques.2.The Doppler ultrasound has good diagnostic accuracy in carotid arteries atherosclerosis3.Combination plaques plaque is marriage with the ulcer plaque.4.Low-echo plaques and combination plaques are high danger risk for the ischemic cerebrovascular disease.5.Carotid arteries atherosclerosis patients' carotid elasticity is broken down.6.The combination plaques' IMT are higher than other plaques.