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Finite element modelling of the tricuspid valve: A preliminary study by Marco Stevanella; Emiliano Votta; Massimo Lemma; Carlo Antona; Alberto Redaelli is a Medicine article available to read on EtoBox.

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The incomplete efficacy of current surgical repair procedures of the tricuspid valve (TV) demands a deeper comprehension of the physiological TV biomechanics. To this purpose, computational models can provide quantitative insight into TV biomechanical response and allow analysing the role of each TV substructure. We present here a three-dimensional finite element model of the tricuspid valve that takes into account most of its peculiar features. Experimental measurements were performed on human and porcine valves to obtain a more detailed TV anatomical framework. To overcome the complete lack of information on leaflets mechanical properties, we performed a sensitivity analysis on the parameters of the adopted non-linear hyperelastic constitutive model, hypothesizing three different parameter sets for three significant collagen fibre distributions. Results showed that leaflets' motion and maximum principal stress distribution were almost insensitive to the different material parameters considered. Highest stresses (about 100kPa) were located near the annulus of the anterior and septal leaflets, while the posterior leaflet experienced lower stresses (about 55kPa); stresses at the com

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Author

Marco Stevanella; Emiliano Votta; Massimo Lemma; Carlo Antona; Alberto Redaelli

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1350-4533)

Published

2010

Language

EN

Field

Medicine (Health Sciences)