Left Ventricular Flow Dynamics during a Cardiac Cycle Comparison between Numerical and Hydromechanical Models
Cardiac performance is intimately connected with the blood dynamics and resultant flow pattern in the left ventricle. This dynamics remains a controversial subject considering the interpretation of phenomena which are observed in ultrasonic echocardiographic and X ray cineangiographic clinical investigations. Moreover, analysis of flow patterns in human cardiac chambers with a bi-directional ultrasonic pulsed Doppler technique through a transcutaneous approach, has been recently shown to be feasible /1, 2/. Nevertheless, in spite of an increasing amount of human clinical data, both under normal and pathological conditions, mitral and aortic valve leaflet kinetics and myocardium mechanical behavior are not fully well understood with reference to their interactions with the intracardiac blood flow.
KeywordsPrimary Vortex Filling Phase Ejection Phase Pinch Effect Cavity Entrance
Unable to display preview. Download preview PDF.
- 1.P. Brun, C. Oddou, P. Dantan, J.P. Laporte, F. Laurent, P. Perrot Blood flow dynamics during the human left ventricular filling phase. In “Cardiac dynamics”, J. Baan, A.C. Arntzenius, E.L. Yellin, eds, Martinus Nijhoff Publishers, The Hague (1980).Google Scholar
- 3.B.J. Bellhouse, The fluid mechanics of heart valves, in “Cardiovascular fluid dynamics”, D.H. Bergel, ed., Academic Press(1972).Google Scholar
- 8.C. Oddou, P. Brun, P. Dantan, E. Beraldo, A. Kulas, F. de Vernejoul, Fluid mechanics in the human left ventricle during cardiac filling phase, in “Cardiovascular and Pulmonary Dynamics”, M.Y. Jaffrin, ed., Euromech 92 (1977).Google Scholar