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Updated: Jan 7, 2026

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异常下关节动脉的血液动力学影响:一个CFD调查

Edoardo Ugolini¹, Giorgio La Civita², Marco Ferraresi³

¹Industrial Engineering Department, University of Bologna, 40126 Bologna, Italy.

Journal of personalized medicine

|December 24, 2025

概括

异常的关节底动脉 (ASA) 与血液流动动态的改变有关,包括更高的壁切应力 (WSS) 和拖动力 (DF),可能导致Komerell分流器. 计算流体动力学 (CFD) 有助于理解这些机制.

科学领域:

心血管成像和血液动力学
生物机械工程生物机械工程
遗传性血管异常遗传性血管异常

背景情况:

异常关节下动脉 (ASA) 是最常见的大动脉形异常,通常与Komerell分离器有关.
这种情况带来破裂和剖析的风险,怀疑其发展的血液动力学变化.
计算流体动力学 (CFD) 提供了一种非侵入性的方法来研究血管异常中的生物力学压力.

研究的目的:

使用CFD调查ASA和Kommerell分离器患者的血液动力学变化.
为了将特定的血液动力学指标与解剖学变异和疾病进展相关联.
评估CFD在了解疾病机制和指导内血管规划方面的有用性.

主要方法:

对六名患有ASA和六名对照患者的胸部CT血管扫描扫描的分析.
使用OpenFOAM进行的CFD模拟,具有标准化的边界条件.
在定义的大动脉弧区域中评估墙壁剪切应力 (WSS),振荡剪切指数 (OSI),拖拉力 (DF) 和流粘度比率 (TVR).

主要成果:

与对照组相比,ASA患者在1-3区显示出明显的血液动力学变化 (增加WSS,OSI,DF,TVR)
观察到最明显的异常是在2-3区,靠近异常船的起源,流动模式受到干扰.
在特定情况下,远距离门中提升的阻力和TVR与远距离动脉瘤和右侧门相关.

结论:

异常的血液动力学有助于Komerell分离体的形成和ASA的进展.
对于澄清疾病机制和描述这些异常中的流动模式,CFD是可行的.
通过确定血液动力学上有利的着陆区域,CFD可以为内血管规划提供信息.

关键词:

在 CFD 交易中,我们可以看到 CFD.异常动脉是一种异常动脉.胸部动脉瘤是什么意思胸部大动脉的胸部大动脉

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