Fluid-structure interaction assessment of blood flow hemodynamics and leaflet stress during mitral regurgitation

Saeed Adham Esfahani, Kamran Hassani, Daniel Espino

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4 Citations (Scopus)
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Abstract

The aim of this study is to simulate the Mitral Regurgitation (MR) disease progression from mild to severe intensity. A Fluid Structure Interaction (FSI) model was developed to extract the hemodynamic parameters of blood flow in mitral regurgitation (MR) during systole. A two-dimensional (2D) geometry of the mitral valve was built based on the data resulting from Magnetic Resonance Imaging (MRI) dimensional measurements. The leaflets were assumed to be elastic. Using COMSOL software, the hemodynamic parameters of blood flow including velocity, pressure, and Von Mises stress contours were obtained by moving arbitrary Lagrange-Euler mesh. The results were obtained for normal and MR cases. They showed the effects of the abnormal distance between the leaflets on the amount of returned flow. Furthermore, the deformation of the leaflets was measured during systole. The results were found to be consistent with the relevant literature.
Original languageEnglish
JournalComputer Methods in Biomechanics and Biomedical Engineering
Early online date31 Dec 2018
DOIs
Publication statusE-pub ahead of print - 31 Dec 2018

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