ABSTRACT
Objective To evaluate the effectiveness of color doppler ultrasound(CDU)in combination of computed tomographie angiography(CTA)in diagnosis of the arteriosclerosis occlusion.Methods:43 patients with arteriosclerosis occlusion were assessed by color doppler ultrasound,CTA and digital subtraction angiography(DSA).By using DSA as the reference standard,the results were compared.Results The sensitivity.specificity,positive and negative predictive values for CDU were 82.96%,95.2%,94.92%,83.8% respectively.Those for CTA were 88.89%,96.75%,96.77%,88.81% respectively,and for the two combination,were 94.81%,99.17%,99.22%,94.44% respectively.Conclusion The color doppler ultrasound combined with CTA is an effective way in diagnosing arteriosclerosis occlusion.
ABSTRACT
Objective:To study the early application of color duplex ultrasound in the evaluation of the arteriosclerosis occlusion after operation.Methods:we retrospectively divided the patients with atherosclerotic occlusion after open crossover surgery and endovascular treatment into groups 1( 12 patients ) and group 2( 13 patients ) respectively.In group 1,we assessed the relationship between the separated results of MG and the volume flow measurement in out-flow arteries before and after operation.In group 2,we assessed the relationship between the volume flow measurement in out-flow arter ies and the result of the DSA examination and all the data of group 2 is after treatment.Results:In group 1,the correlation of the separated results of MG and the increased amplitude of volume flow measurement in out-flow arteries was negative(P=0.0138,r=-0.6859).In group 2,the correlation of the volume flow measurement in out-flow arteries and the result of the DSA examination was negative(P=0.0316,r=-0.6198).In the patients after open crossover surgery and endovascular treatment,the MG and the volume of out-flow arteries were the significant hemodynamics index respectively.Conclusion:The color duplex ultrasonic early application is a perfect method in the follow-up of arteriosclerosis occlusion after operation.