生物医学工程研究2023，Vol.42Issue(4)：305-312,8.DOI:10.19529/j.cnki.1672-6278.2023.04.01
端侧吻合与侧侧吻合的自体动静脉内瘘的数值模拟分析
Numerical simulation analysis of autogenous arteriovenous fistula with end-to-side anastomosis and side-to-side anastomosis
摘要
Abstract
In order to analyze the hemodynamic characteristics of stenosis in the arteriovenous fistula.Based on computer-aided technology,the arteriovenous fistula models under end-to-side anastomosis and side-to-side anastomosis were established and the he-modynamic characteristics at different moments were analyzed by computational fluid dynamics analysis software.The results showed that the worst hemodynamic characteristics of two fistula models were at the proximal end of the fistula,especially on the inner wall of the vein,the low-velocity region and low wall shear stress region were concentrated.Compared to the side-to-side arteriovenous fistu-la,the vortex occurring near the fistula was reduced in the end-to-side arteriovenous fistula,but excessive wall shear stress was pres-ent during systole,and the area of high oscillatory shear stress index was larger.This may cause arteriovenous fistula lesions and loss of work.The results of the computational fluid dynamics analysis can provide a reference for the design and selection of the anastomosis scheme of the arteriovenous fistula.关键词
动静脉内瘘/计算流体力学/端侧吻合/侧侧吻合Key words
Arteriovenous fistulas/Computational fluid dynamics/End-to-side anastomosis/Side-to-side anastomosis分类
医药卫生引用本文复制引用
张嘉惠,齐天成,张怀新..端侧吻合与侧侧吻合的自体动静脉内瘘的数值模拟分析[J].生物医学工程研究,2023,42(4):305-312,8.基金项目
上海交通大学"交大之星"计划医工交叉研究基金(YG2019QNA29) （YG2019QNA29）
国家自然科学基金资助项目(52171316). （52171316）
