Assessment of calcified aortic valve leaflet deformations and blood flow dynamics using fluid-structure interaction modeling
نویسندگان
چکیده
منابع مشابه
A Fluid Structure Interaction Model of Native Aortic Valve with Physiologic Blood Pressure and Tissue Properties
The kinematics and dynamics of the aortic valve (AV) are highly dependent on the combined mechanical properties of the valve and the aortic root (AR), as well as the blood flow. Previous numerical models of physiological AV and AR, that included coaptation under the full cardiac cycle, ignored the influence of the blood flow (performing “dry” simulations). This study presents a full fluid-struc...
متن کاملFluid-structure Interaction in Blood Flow
This is a joint work with Andro Mikelić (University of Lyon 1, France), Josip Tambača (University of Zagreb, Croatia), Giovanna Guidoboni (University of Houston, USA), Dr. Craig Hartley (Baylor College of Medicine, USA), Dr. Doreen Rosenstrauch (Texas Heart Institute and The University of Texas Health Science Center at Houston, USA), and Dr. Z. Krajcer (Texas Heart Institute and St. Luke’s Epis...
متن کاملFluid-Structure Interaction in the Aortic Heart Valve
Introduction The opening and closing behavior of the valve is a delicate interaction between blood flow and geometrical and stiffness properties of the heart valve leaflets and aortic root. Numerical analysis of the opening and closing behavior is complicated by the three-dimensional finite motion of the very flexible leaflets in a compliant system of fluid and structure. Fluid-structure intera...
متن کاملFluid-structure interaction modeling of aortic valve stenosis at different heart rates.
PURPOSE This paper proposes a model to measure the cardiac output and stroke volume at different aortic stenosis severities using a fluid-structure interaction (FSI) simulation at rest and during exercise. METHODS The geometry of the aortic valve is generated using echocardiographic imaging. An Arbitrary Lagrangian-Eulerian mesh was generated in order to perform the FSI simulations. Pressure ...
متن کاملRemodelling of material structure in aortic valve leaflet.
PURPOSE The goal of this study is to model changes in fibre content in aortic valve leaflet material due to mechanical stimuli. METHODS The fibre remodelling process is associated with the redistribution of the internal forces acting in the shell. The process is characterized by the occurrence of extreme stresses and strains. The load distribution function is asymmetrical. The optimization pr...
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ژورنال
عنوان ژورنال: Informatics in Medicine Unlocked
سال: 2017
ISSN: 2352-9148
DOI: 10.1016/j.imu.2017.09.001