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血动力学和基底动脉化中的斑块分布:计算流体动力学和高分辨率MRI研究

Dong Wang¹, Tao Zheng², Yating Han¹

¹Department of Neurology, Peking University People' Hospital, Beijing, China.

Medical physics

|February 17, 2026

概括

基底动脉化 (BAF) 创建了低壁剪压 (WSS) 区域,导致斑块积累. 高分辨率的MRI和CFD显示,WSS映射是BAF患者动脉样硬化风险的潜在生物标志物.

科学领域:

生物医学工程生物医学工程
放射学放射学是一门学科.
心血管研究研究心血管研究

背景情况:

高分辨率MRI (HRMRI) 能够进行详细的内动脉壁成像.
基底动脉化 (BAF) 呈现出独特的血液动力学影响斑块形成.
将HRMRI与计算流体动力学 (CFD) 集成,研究动脉样硬化生物力学.

研究的目的:

在使用HRMRI的BAF患者中描述斑块分布.
通过CFD阐明斑块分布的血液动力学相关物.
专注于墙壁剪切应力 (WSS) 调制的窗格形态.

主要方法:

对26名BAF患者的回顾性HRMRI分析.
盲人神经放射学家使用3D VISTA图像进行系统的斑块评估.
特定于患者的CFD模型来评估血液流动,WSS和振荡剪切指数 (OSI).

主要成果:

在BAF患者中,HRMRI显示出明显的斑块模式.
斑块主要局限于窗侧墙 (50%) 和下游侧墙 (71.4%).
CFD显示窗户侧墙上的WSS明显较低,与斑块部位相关.

结论:

BAF形态诱导侧壁的低WSS区域,容易形成斑块.
在理解血管生物力学方面,CFD-HRMRI集成有助于理解.
在解剖学变异中,WSS映射可能作为动脉样硬化风险的生物标志物.

关键词:

动脉样硬化是一种动脉样硬化.基底动脉的窗体化基底动脉的窗体化计算流体动力学的流体动力学.高分辨率的核磁共振成像墙壁剪切应力压力是什么

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