An inverse finite element method for determining the tissue compressibility of human left ventricular wall during the cardiac cycle.

The determination of the myocardium's tissue properties is important in constructing functional finite element (FE) models of the human heart. To obtain accurate properties especially for functional modeling of a heart, tissue properties have to be determined in vivo. At present, there are only...

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Autores principales:	Abdallah I Hassaballah, Mohsen A Hassan, Azizi N Mardi, Mohd Hamdi
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b71d8a333ff24455bd496496ed02940c
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spelling	oai:doaj.org-article:b71d8a333ff24455bd496496ed02940c2021-11-18T08:41:11ZAn inverse finite element method for determining the tissue compressibility of human left ventricular wall during the cardiac cycle.1932-620310.1371/journal.pone.0082703https://doaj.org/article/b71d8a333ff24455bd496496ed02940c2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24367544/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203The determination of the myocardium's tissue properties is important in constructing functional finite element (FE) models of the human heart. To obtain accurate properties especially for functional modeling of a heart, tissue properties have to be determined in vivo. At present, there are only few in vivo methods that can be applied to characterize the internal myocardium tissue mechanics. This work introduced and evaluated an FE inverse method to determine the myocardial tissue compressibility. Specifically, it combined an inverse FE method with the experimentally-measured left ventricular (LV) internal cavity pressure and volume versus time curves. Results indicated that the FE inverse method showed good correlation between LV repolarization and the variations in the myocardium tissue bulk modulus K (K = 1/compressibility), as well as provided an ability to describe in vivo human myocardium material behavior. The myocardium bulk modulus can be effectively used as a diagnostic tool of the heart ejection fraction. The model developed is proved to be robust and efficient. It offers a new perspective and means to the study of living-myocardium tissue properties, as it shows the variation of the bulk modulus throughout the cardiac cycle.Abdallah I HassaballahMohsen A HassanAzizi N MardiMohd HamdiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 12, p e82703 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Abdallah I Hassaballah Mohsen A Hassan Azizi N Mardi Mohd Hamdi An inverse finite element method for determining the tissue compressibility of human left ventricular wall during the cardiac cycle.
description	The determination of the myocardium's tissue properties is important in constructing functional finite element (FE) models of the human heart. To obtain accurate properties especially for functional modeling of a heart, tissue properties have to be determined in vivo. At present, there are only few in vivo methods that can be applied to characterize the internal myocardium tissue mechanics. This work introduced and evaluated an FE inverse method to determine the myocardial tissue compressibility. Specifically, it combined an inverse FE method with the experimentally-measured left ventricular (LV) internal cavity pressure and volume versus time curves. Results indicated that the FE inverse method showed good correlation between LV repolarization and the variations in the myocardium tissue bulk modulus K (K = 1/compressibility), as well as provided an ability to describe in vivo human myocardium material behavior. The myocardium bulk modulus can be effectively used as a diagnostic tool of the heart ejection fraction. The model developed is proved to be robust and efficient. It offers a new perspective and means to the study of living-myocardium tissue properties, as it shows the variation of the bulk modulus throughout the cardiac cycle.
format	article
author	Abdallah I Hassaballah Mohsen A Hassan Azizi N Mardi Mohd Hamdi
author_facet	Abdallah I Hassaballah Mohsen A Hassan Azizi N Mardi Mohd Hamdi
author_sort	Abdallah I Hassaballah
title	An inverse finite element method for determining the tissue compressibility of human left ventricular wall during the cardiac cycle.
title_short	An inverse finite element method for determining the tissue compressibility of human left ventricular wall during the cardiac cycle.
title_full	An inverse finite element method for determining the tissue compressibility of human left ventricular wall during the cardiac cycle.
title_fullStr	An inverse finite element method for determining the tissue compressibility of human left ventricular wall during the cardiac cycle.
title_full_unstemmed	An inverse finite element method for determining the tissue compressibility of human left ventricular wall during the cardiac cycle.
title_sort	inverse finite element method for determining the tissue compressibility of human left ventricular wall during the cardiac cycle.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/b71d8a333ff24455bd496496ed02940c
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An inverse finite element method for determining the tissue compressibility of human left ventricular wall during the cardiac cycle.

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