Particle image velocimetry for flow analysis in mechanical artificial heart valves

Paolo Castellini; Marcos Pinotti; Lorenzo Scalise

doi:10.1117/12.446676

24 October 2001 Particle image velocimetry for flow analysis in mechanical artificial heart valves

Paolo Castellini, Marcos Pinotti, Lorenzo Scalise

Author Affiliations +

Proceedings Volume 4434, Hybrid and Novel Imaging and New Optical Instrumentation for Biomedical Applications; (2001) https://doi.org/10.1117/12.446676
Event: European Conferences on Biomedical Optics, 2001, Munich, Germany

Abstract

Red blood cell damage (hemolysis) and thromboemblism are the main complications associated to the implantation of mechanical artificial heart valves. In the last decades a great number of in vitro studies have been conducted to improve the design and to understand the transvalvular flow patterns under steady state and pulsatile conditions. Steady state tests are useful to study the flow established upstream and downstream the valve prosthesis in the moment of the peak flow rate. In the present study, Particle Image Velocimetry (PIV) technique was employed to visualise the flow patterns in a pre-commercial model of bi-leaflet mechanical heart valve prosthesis in a steady state flow. PIV technique and a convenient test rig have provided good conditions to investigate the whole flowfield upstream and downstream the valve.

Citation Download Citation

Paolo Castellini, Marcos Pinotti, and Lorenzo Scalise "Particle image velocimetry for flow analysis in mechanical artificial heart valves", Proc. SPIE 4434, Hybrid and Novel Imaging and New Optical Instrumentation for Biomedical Applications, (24 October 2001); https://doi.org/10.1117/12.446676

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