Diagnostic Value of Neck Ultrasound and CT Angiography in Carotid Stenosis
Objective To explore the diagnostic value of neck color doppler ultrasound(CDUS)and CT angiography(CTA)in carotid stenosis.Methods A total of 70 patients with ischemic cerebrovascular disease who were treated in Songyuan Jilin Oilfield General Hospital from January 2021 to June 2023 were retrospectively selected,and their clinical data were sorted out and analyzed.All patients were examined by digital subtraction angiography(DSA),CDUS and CTA.The detection results of CDUS and CTA,diagnostic efficiency and hemodynamic parameters of the negative group and the positive group were compared,detection results of carotid plaque by two examination methods.And the typical cases were analyzed.Results A total of 70 patients with ischemic cerebrovascular disease were diagnosed as positive in 21 cases and negative in 49 cases after DSA examination.30 cases were positive and 40 cases were negative by CDUS,of which only 17 cases were diagnosed as carotid stenosis.After CTA examination,27 cases were positive and 43 cases were negative,of which only 20 cases were diagnosed as carotid stenosis.The accuracy of CTA was higher than that of CDUS.The detection rate of carotid plaque in CTA was higher than that in CDUS,the difference was statistically significant(P<0.05).There was no significant difference in sensitivity and specificity between the two diagnostic methods(P>0.05).According to the results of DSA examination,the patients were divided into the negative group and the positive group,49 cases and 21 cases respectively.Compared with the negative group,the peak systolic flow velocity of internal carotid artery(PSV)and end diastolic flow velocity(EDV)of the positive group were higher,and the arterial pulsation index(PI)and average blood flow velocity(Vm)were lower,the differences were statistically significant(P<0.05).Conclusion Compared with CDUS,CTA has higher detection accuracy and certain application advantages,but it needs injection of contrast agent,and its application scope is limited.The accuracy of CDUS is relatively low,but it has the advantages of good repeatability and non-invasive,and it can also detect the cerebral blood flow state of patients.The detection rate of carotid plaque by CTA is higher,but the accuracy of plaque classification is not high.Both of them have unique advantages and can be selected according to actual needs in clinical application.
carotid stenosisneck color doppler ultrasoundCT angiographydigital subtraction angiographycerebral blood flow statediagnostic value
万方数据
维普
