ORBi: Moorhead K. T. - A Simplified Rotational Spring Model for Mitral Valve Dynamics

Reference : A Simplified Rotational Spring Model for Mitral Valve Dynamics


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Human health sciences : Cardiovascular & respiratory systems Engineering, computing & technology : Multidisciplinary, general & others
	To cite this reference:	http://hdl.handle.net/2268/92554

Title :	A Simplified Rotational Spring Model for Mitral Valve Dynamics
Language :	English
Author, co-author :	Moorhead, K. T. []
	Hann, C. E. [> >]
	Chase, J. Geoffrey [> >]
	Paeme, Sabine [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Thermodynamique des phénomènes irréversibles >]
	KOLH, Philippe [Université de Liège - ULg > Département des Sciences biomédicales et précliniques > Service de biochimie et de physiologie générales, humaines, normales et pathologiques > >]
	Dauby, Pierre [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Thermodynamique des phénomènes irréversibles >]
	Desaive, Thomas [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Thermodynamique des phénomènes irréversibles >]
Publication date :	7-Sep-2010
Main document title :	Proceedings of control 2010
On invitation :	Yes
Audience :	International
Event name :	UKACC International Conference on CONTROL 2010
Event date :	du 7 septembre 2010 au 10 septembre 2010
Event place (city) :	Coventry
Event country :	United Kingdom
Keywords :	[en] cardiac cycle ; mitral valve ; non linear rotational spring
Abstract :	[en] A simple non-linear rotational spring model has been implemented to model the motion of mitral valve, located between the left atrium and ventricle. A measured pressure difference curve was used as the input into the model, which represents an applied torque to the valve chords. Various damping and hysteresis states were investigated to find a model that best matches reported animal data of chord movement during a heartbeat. The study is limited by the use of one dataset from the literature, however results clearly highlight some physiological issues such as the damping and chord stiffness changing within one cardiac cycle. Very good correlation was achieved between modeled and experimental valve angle, indicating good promise for future simulation of cardiac dysfunction, such as mitral regurgitation or stenosis.
Funders :	University of Liege ; the University of Canterbury ; he French Community of Belgium (Actions de Recherches Concertées Académie Wallonie-Europe)
Permalink :	http://hdl.handle.net/2268/92554

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