经颅多谱勒对正常人Willis环侧支代偿潜能的评估  

Evaluating Potential Ability of Collateral Compensation to the Circle of Willis in Normal People by Transcrianal Dopple

作　　者：陈颖贤[1] 潘锡榜[1] 姚璐[1] 

机构地区：[1]中山大学第一附属医院,广东广州510080

出　　处：《实用医技杂志》2008年第29期4009-4011,共3页Journal of Practical Medical Techniques

摘　　要：目的:应用经颅多谱勒(TCD)了解正常人Willis环侧支循环并评估其代偿潜能。方法:336例健康体检者行常规TCD检测并作颈总动脉压迫试验,观察压迫前后的大脑中动脉、大脑前动脉和大脑后动脉的血流动力学变化。结果:Willis环的5个代偿类型中以前后循环完整的Ⅰ型为主(65.2%),其次是前循环与部分后循环的Ⅱ型(16.6%),其后依次是后循环完整的Ⅳ型(12.5%)、单纯前循环的Ⅲ型(4.8%)和部分后循环的Ⅴ型(0.9%)。代偿潜能以Ⅰ型最好,前循环代偿好于后循环,仅有后循环参与的Ⅳ型、Ⅴ型代偿较差。结论:TCD可以了解Willis环侧支代偿,但代偿功能不仅依赖环的完整性,还取决于侧支的潜在代偿能力。Objective To observe the potential compensation patterns and ability of the circle of Willis by Transcranial Dopple(TCD). Methods Three hundred and thirty-six healthy objectives were examinated and compressed common carotid artery test by TCD to assess the collateral compensation of the circle of Willis. Results The compensatory types of the circle of Willis were classified as Ⅰ: Entire complete anterior and posteriors (65.2%); Ⅱ: Anterior and partial posterior (16.6%); Ⅲ: Separate anterior (4.8%); Ⅳ: Compl...

关 键 词：经颅多普勒 WILLIS环 代偿潜能 

分 类 号：R445.1[医药卫生—影像医学与核医学]