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RISA New Method for Evaluation of Cavitation Near Mechanical Heart Valves
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Evaluation of cavitation in vivo is often based on recordings of high-pass filtered random high-frequency pressure fluctuations. We hypothesized that cavitation signal components are more appropriately ...
Mechanism of Incomplete Mitral Leaflet Coaptation—Interaction of Chordal Restraint and Changes in Mitral Leaflet Coaptation Geometry: Insight from In Vitro Validation of the Premise of Force Equilibrium
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Clinically observed incomplete mitral leaflet coaptation was reproduced in vitro by altering the balance of the chordal tethering and chordal coapting force components. Mitral leaflet coaptation ...
An In Vivo Method for Measuring Turbulence in Mechanical Prosthesis Leakage Jets
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work introduces a method for the in vivo measurement and analysis of turbulence within the leakage of a mechanical heart valve. Several analysis techniques were applied to ultrasound ...