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14:40
20 mins
In vitro PIV analysis of flow dynamics in a left ventricle model equipped with a physiological transcatheter mitral valve prosthesis
Manuel Zannone, Elena Torta, Daniele Pecchio, Diego Gallo, Umberto Morbiducci
Session: PIV/PTV methods and applications V
Session starts: Thursday 06 November, 14:20
Presentation starts: 14:40
Room: Lecture room A
Manuel Zannone (Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy)
Elena Torta (Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy)
Daniele Pecchio (Affluent Medical Sa, Aix-en-Provence, France)
Diego Gallo (Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy)
Umberto Morbiducci (Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy)
Abstract:
This study presents an in vitro characterization of intraventricular flow induced by a physiological transcatheter mitral valve prosthesis using two-dimensional Particle Image Velocimetry (PIV). Experiments were conducted in a silicone left ventricle phantom under physiological flow conditions. Phase-averaged velocity fields were analyzed to quantify vortex formation, circulation, and energy dissipation. The results show that the prosthesis generates a stable, clockwise vortex, with peak circulation and total viscous energy dissipation comparable to native valve function. Kinetic energy decomposition reveals that flow is dominated by organized, phase-correlated motion. Future measurements will be conducted on a plane perpendicular to the one presented here. This will enable a more detailed analysis of the three-dimensional structure of the vortex.