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Insights From In-Vitro Flow Visualization Into the Mechanism of Systolic Anterior Motion of the Mitral Valve in Hypertrophic Cardiomyopathy Under Steady Flow Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Hypertrophic obstructive cardiomyopathy is a heart disease characterized by a thickened interventricular septum which narrows the left ventricular outflow tract, and by systolic anterior motion ...
Quantification of Mitral Regurgitation Using Corrected Doppler Measurements
Publisher: The American Society of Mechanical Engineers (ASME)
In-Vitro Fluid Dynamic Characteristics of the Abiomed Trileaflet Heart Valve Prosthesis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The need for better and longer lasting trileaflet valves has led to the design and development of the Abiomed polymeric trileaflet valve prosthesis. In-vitro fluid dynamic studies on sizes 25 ...
Quasisteady Behavior of Pulsatile, Confined, Counterflowing Jets: Implications for the Assessment of Mitral and Tricuspid Regurgitation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Mitral and tricuspid regurgitation create turbulent jets within the atria. Clinically, for the purpose of estimating regurgitant severity, jet size is assumed to be proportional to peak jet flow ...
Pulsatile Flow Computational Simulations of Mitral Regurgitation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The noninvasive quantification of mitral regurgitation remains an important clinical goal. Recently, the flow convergence method was developed to estimate the regurgitant flow rate. This study ...
Effect of Physiological Factors on Proximal Flow Convergence Upstream of an Incompetent Valve: An In-Vitro Study
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The flow (Q) through regurgitant valves may be quantified by multiplying the area of an isovelocity contour (isovel) by its velocity. This was tested computationally and experimentally (using ...
The Effects of Curvature on Fluid Flow Fields in Pulmonary Artery Models: Flow Visualization Studies
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In vitro pulsatile flow visualization studies were conducted to assess the effects of varying radii of curvature of the right ventricular outflow tract (RVOT) and main pulmonary artery (MPA) ...
In-Vitro Pulsatile Flow Visualization Studies in a Pulmonary Artery Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In-vitro pulsatile flow visualization studies were conducted in an adult-sized pulmonary artery model to observe the effects of valvular pulmonic stenosis on the flow fields of the main, left ...
Hemodynamics of the Fontan Connection: An In-Vitro Study
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Fontan operation is one in which the right heart is bypassed leaving the left ventricle to drive the blood through both the capillaries and the lungs, making it important to design an ...