Title: Application value of color Doppler ultrasound in carotid artery stenting
Abstract: Objective To explore the effect of color Doppler ultrasound(CDU) in treatment of extracranial carotid artery atherosclerotic stenosis with stent placement.Methods Forty-nine patients with self-expanding carotid artery stenting(CAS) because of extracranial carotid atherosclerotic stenosis were examined by CDU.The preoperative diameter and stenosis rate were measured,and the results were compared with those of digital subtraction angiography(DSA).One month and 12 months after operation,the diameter of stenosis,the peak systolic velocity(PSV),the end-diastolic velocity(EDV) and the resistance index(RI) were measured,and the results were compared with preoperative parameters.Results There was no significant difference of diameters of stenosis and stenosis rate between DSA and color Doppler ultrasound(P0.05).There was no significant difference of diameters of stenosis,PSV,EDV and RI after one month and after 12 months(P0.05).Compared with before operation,the diameters of stenosis was significantly increased(P0.05),and PSV,EDV and RI were significantly decreased(P0.05).One patient was found restenosis in 12 months follow-up after operation which was confirmed by DSA,then CAS was performed again.Conclusion Color Doppler ultrasound has high accuracy in diagnosis of extracranial carotid atherosclerotic stenosis,it could be used for preoperative initial selection,postoperative effect assessment and follow-up.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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