A two phase harmonic model for left ventricular function

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A two phase harmonic model for left ventricular function.

A minimal model for mechanical motion of the left ventricle is proposed. The model assumes the left ventricle to be a harmonic oscillator with two distinct phases, simulating the systolic and diastolic phases, at which both the amplitude and the elastic constant of the oscillator are different. Taking into account the pressure within the left ventricle, the model shows qualitative agreement wit...

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Here we shall introduce the concept of harmonic balls in subdomains of Rn, through a mean value property for a sub-class of harmonic functions on such domains. In the complex plane, and for analytic functions, a similar concept fails to exist due to the fact that analytic functions can not have prescribed data on the boundary. Nevertheless, a two-phase version of the problem does exists, and gi...

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Normal left ventricular function.

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Subodh Verma, Donald A.G. Mickle, Katrina L. Watson, Carlo V. Hojilla, William Cruz, Paul W.M. Fedak, David S. Smookler, Zamaneh Kassiri, Nobuhisa Ohno, Kevin J. Leco, TIMP-3 Deficiency Leads to Dilated Cardiomyopathy Print ISSN: 0009-7322. Online ISSN: 1524-4539 Copyright © 2004 American Heart Association, Inc. All rights reserved. is published by the American Heart Association, 7272 Greenvill...

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ژورنال

عنوان ژورنال: Medical Engineering & Physics

سال: 2007

ISSN: 1350-4533

DOI: 10.1016/j.medengphy.2006.10.015