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首页> 外文期刊>Journal of Biomechanics >Study of the evolution of the shear stress on the restenosis after coronary angioplasty.
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Study of the evolution of the shear stress on the restenosis after coronary angioplasty.

机译：切应力对冠状动脉成形术后再狭窄的演变的研究。

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In this article, we analyze the influence of fluid dynamics variables on the development of obstructive coronary artery disease in the medium term after percutaneous coronary intervention with stent implantation. We have analyzed a group of seven patients and the study is focused on the mid-right coronary artery. In these patients we have studied the relationship between wall shear stress and arterial wall thickness both immediately after stent implantation and six months later. The realistic three-dimensional (3D) reconstruction of the arteries is performed with the data obtained with intravascular ultrasound (IVUS) and angiography. The commercial code Fluent is used to solve the Navier-Stokes equations. Special attention is paid to the shear stress on the wall arteries and the corresponding thickness. The results show that there is a negative correlation for most of the cases between the wall shear stress and increase in wall thickness. A model is proposed to study the instability at the wall, and qualitative agreement is found.
机译：在本文中，我们分析了在支架植入物经皮冠状动脉介入治疗后中期的流体动力学变量对阻塞性冠状动脉疾病发展的影响。我们分析了一组七名患者，研究集中在右中冠状动脉。在这些患者中，我们研究了支架植入后和六个月后壁切应力与动脉壁厚度之间的关系。用血管内超声（IVUS）和血管造影术获得的数据执行动脉的逼真的三维（3D）重建。商业代码Fluent用于求解Navier-Stokes方程。要特别注意壁动脉的切应力和相应的厚度。结果表明，在大多数情况下，壁切应力与壁厚增加之间存在负相关关系。提出了一个模型来研究墙体的不稳定性，并找到了定性的一致性。

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