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Amico et al. Physics of Fluids 38, 021916 (2026)
The ViVitro Pulse Duplicator enabled a physiologically relevant, ISO 5840-aligned test environment for direct comparison of event-based imaging velocimetry (EBIV) and conventional PIV in a left-heart simulator with a transcatheter mitral valve. The study examined whether EBIV could quantify intraventricular flow with accuracy comparable to PIV under two cardiac-output conditions. Using synchronized, phase-locked acquisitions, the authors showed that EBIV reproduced the main hemodynamic features measured by PIV, including velocity fields, diastolic vortex structures, circulation, Lagrangian trajectories, pulsatile kinetic energy, and dominant POD modes. The work positions EBIV as a data-efficient, high-dynamic-range alternative for cardiac flow analysis, while underscoring the value of the ViVitro platform in delivering realistic, reproducible bench testing for device assessment and translational cardiovascular research.
Other Products Cited: Analysis and Computational Modeling Flow Visualization Heart Valve Testing Pulsatile Flow Simulation Pulse Duplicator
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