RESUMO
Objective To study the application of contrast-enhanced ultrasonography (CEUS) in the evaluation of the stability of carotid atherosclerotic plaque (CAP).Methods 162 patients with CAP were selected as study group.Meanwhile,34 patients with carotid artery strong echo plaques were selected as control group.The color doppler ultrasound was used to observe the CAP.Results The proportions of lipid type,fiber type,calcification and ulcer plaque in the study group were 21.60%,33.33%,34.57% and 10.37%,which were higher than those of the control group (5.88%,2.94%,2.94% and 2.94%),the differences were statistically significant (χ2=4.537,12.859,13.629 and 3.855,all P0.05).The plaque diameter (4.13±0.75)mm diagnosed by CEUS was significantly larger than that of conventional ultrasound [(3.62±1.14)mm],the difference was statistically significant (t=4.757,P=0.000).Conclusion The CEUS can qualitatively detect the atherosclerotic plaque angiogenesis,can quantitatively assess plaque,evaluate the stability of the plaques,and the sensitivity is high.