Diagnostic value of vascular ultrasonography in cervical carotid artery dissection |
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Citation of this paper:SHEN De-juan1,XIA Bing-lan1*,SUN Jun2.Diagnostic value of vascular ultrasonography in cervical carotid artery dissection[J].Chinese Journal of Clinical Medicine,2018,25(4):610-612 |
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Author Name | Affiliation | SHEN De-juan1,XIA Bing-lan1*,SUN Jun2 | 1.Department of Ultrasound, Subei People’s Hospital of Jiangsu Province, Yangzhou 225001, Jiangsu, China2.Department of Radiology, Subei People’s Hospital of Jiangsu Province, Yangzhou 225001, Jiangsu, China |
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Abstract:Objective:To investigate the imaging features and diagnostic value of vascular ultrasonography in cervical artery dissection (CAD). Methods:32 patients suspected of CAD were selected from Janaury 2016 to March 2017 in Subei People’s Hospital of Jiangsu Province. All patients detected by ultrasonography, high-resolution magnetic resonance imaging (HR-MRI) and (or) digital subtraction angiography. According to the results of HR-MRI and (or) DSA, the sensitivity, specificity and accuracy of vascular ultrasonography in CAD patients were determined. Results:19 patients with a total of 23 dissections (18 internal carotid arteries and 5 vertebral arteries) were confirmed. The direct ultrasound signs of CAD consisted of intramural hematoma(14), double lumens(5), aneurysmal dilatation(3), and intimal flap(1).Indirect ultrasound signs of CAD included stenosis/occlusion in a segment usually not affected by atherosclerosis, increased or decreased pulsatility upstream or downstream to the suspected arterial lesion, >50% difference in the blood flow velocity compared to the same segment of the artery on the unaffected side. Compared with HR-MRI and (or) DSA, the sensitivity of ultrasonography for CAD was 91.3%, the specificity was 89.5%, the accuracy was 90.5%. The ROC analysis showed the area under the curve was 0.904. There was a high level of agreement between ultrasonography and HR MRI (Kappa=0.808). Conclusions:Vascular ultrasonography can diagnose CAD effectively. It has the advantage of minimally invasive, and is useful to clinical practice. |
keywords:carotid artery disease aneurysm dissection ultrasonography |
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