Journal
MEDICAL ENGINEERING & PHYSICS
Volume 47, Issue -, Pages 2-12Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.medengphy.2017.06.045
Keywords
Transcatheter aortic valve implantation; Patient-specific modeling; Finite element analysis
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Funding
- Cariplo Foundation [2013-1779]
- Lombardy Region [42938382, 46554874]
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In the last few years, several studies, each with different aim and modeling detail, have been proposed to investigate transcatheter aortic valve implantation (TAVI) with finite elements. The present work focuses on the patient-specific finite element modeling of the aortic valve complex. In particular, we aim at investigating how different modeling strategies in terms of material models/properties and discretization procedures can impact analysis results. Four different choices both for the mesh size (from 20k elements to 200k elements) and for the material model (from rigid to hyperelastic anisotropic) are considered. Different approaches for modeling calcifications are also taken into account. Post-operative CT data of the real implant are used as reference solution with the aim of outlining a trade-off between computational model complexity and reliability of the results. (C) 2017 IPEM. Published by Elsevier Ltd. All rights reserved.
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