Color Doppler flow imaging in diagnosis of carotid artery stenosis
10.3760/cma.j.cn115354-20200221-00098
- VernacularTitle:彩色多普勒超声在颈动脉狭窄诊断中的应用价值分析
- Author:
Yuan PAN
1
;
Xiu SHANGGUAN
;
Fan YANG
;
Tao XIN
;
Li DU
Author Information
1. 解放军海军第九七一医院神经外科，青岛 266071
- Keywords:
Carotid artery stenosis;
Color Doppler flow imaging;
Diagnosis
- From:
Chinese Journal of Neuromedicine
2020;19(11):1149-1152
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the accuracy and application value of color Doppler flow imaging (CDFI) in diagnosis of carotid artery stenosis.Methods:A retrospective analysis was performed on the clinical data of 172 patients with cerebral infarction or transient ischemic attack (TIA) underwent both CDFI and cerebral digital subtraction angiography (DSA) in our hospital from January 2013 to July 2019. The carotid arteries from these patients were classified into 6 categories: normal type, mild stenosis (stenosis degree<30%), moderate stenosis (stenosis degree: 30%-69%), severe stenosis (stenosis degree: 70%-94%), subtotal occlusion (stenosis degree: 95%-99%), and total occlusion (stenosis degree: 100%). The detection rates of carotid artery stenosis by CDFI and DSA were compared; and using DSA result as the gold standard, the accuracy of CDFI in diagnosing carotid artery stenosis was discussed. Kappa analysis was used to evaluate the consistency of the two detection methods.Results:A total of 344 carotid arteries were detected in the 172 patients. CDFI examinations showed that 179 were normal, 15 were with mild stenosis, 66 were with moderate stenosis, 61 were with severe stenosis, 13 were with subtotal occlusion, and 10 were with total occlusion. DSA showed that 160 were normal, 32 were with mild stenosis, 84 were with moderate stenosis, 45 were with severe stenosis, 14 were with subtotal occlusion, and 9 were with total occlusion. The vascular stenosis detection rate of DSA was 53.5% (184/344), and that of CDFI was 48.0% (165/344), without significant difference ( P>0.05). Using DSA result as the gold standard, the accuracy, sensitivity and specificity of CDFI in diagnosing carotid stenosis were 94.5%, 89.7% and 100% respectively. Consistency analysis showed that Kappa was 0.846, and the consistency of DSA and CDFI detection results was high. Conclusions:CDFI is a non-invasive and cost-effective method for diagnosing carotid artery stenosis, enjoying high consistency with DSA. CDFI can be used as the first choice for preoperative screening and postoperative follow-up of carotid artery stenosis.
