常规血管超声与微血管成像技术诊断颈动脉狭窄的对比研究
2016-07-26袁嘉勇强张蕾穆洁刘海芳
袁嘉,勇强,张蕾,穆洁,刘海芳
常规血管超声与微血管成像技术诊断颈动脉狭窄的对比研究
袁嘉,勇强,张蕾,穆洁,刘海芳
摘要
目的:探讨常规血管超声与微血管成像技术(SMI)在评价颈动脉狭窄中的价值。
方法:选取2014-08至2015-03我院住院的颅外段颈动脉狭窄患者37例(共70条血管),以数字减影血管造影(DSA) 检查为金标准,对常规血管超声及SMI对颈动脉狭窄检出情况进行对比研究。
结果:常规超声诊断颈动脉狭窄的准确性、敏感性、特异性分别为 81.42 %、83.33 %、80.95 %。SMI诊断颈动脉狭窄的准确性、敏感性、特异性分别为 91.43 %、92.16 %、89.47 %。
结论:常规血管超声与SMI在评估颈动脉血管狭窄程度上具有较好的一致性,但SMI对颈动脉狭窄诊断准确性、敏感性及特异性均优于常规血管超声,SMI能更准确判定颈动脉狭窄程度,有望成为一种更可靠评价颈动脉斑块及狭窄程度的检查方法。
关键词 颈动脉狭窄; 微血管成像技术;超声检查;血管造影术,数字减影
Objective: To assess the values of conventional vascular ultrasound (US) and superb micro vascular imaging (SMI) for diagnosing carotid artery stenosis in relevant patients.
Methods: A total of 37 patients of extra cranial carotid stenosis (with 70 blood vessels) treated in our hospital from 2014-08 to 2015-03 were retrospectively studied. Digital subtraction angiography (DAS) examination was used as golden standard, the diagnostic efficacies for carotid artery stenosis by US and by SMI were compared.
Results: The accuracy, sensitivity and specificity for diagnosing carotid stenosis by US were 81.42%, 83.33% and 80.95%; by SMI were 91.43%, 92.16% and 89.47% respectively.
Conclusion: US and SMI showed good agreement for diagnosing carotid artery stenosis, while SMI was superior to US for accurately assess the degree of carotid stenosis, it might be used as a more reliable method for evaluating carotid plaque and stenosis in relevant patients.
Key words Carotid artery stenosis; Superb micro vascular imaging; Ultrasonography; Angiography, digital, subtraction
(Chinese Circulation Journal, 2016,31:601.)
颈动脉狭窄是引起缺血性脑梗死的重要原因之一,重度颈动脉狭窄是手术治疗适应证之一,准确诊断颈动脉狭窄程度对于明确病因和治疗均有非常重要的临床意义。脑血管造影检查是诊断颅内外动脉狭窄的“金标准”[1]。但其有创,价格昂贵,辐射量大,不能用于颈动脉狭窄筛查。颈动脉超声检查无创,能准确诊断颈动脉狭窄程度。微血管成像技术(SMI)是基于彩色多普勒原理基础发展起来一种新的超声血流显像技术,较传统彩色血流显像技术有更高敏感性及分辨率,能更敏感捕捉真实血流。……
