Open loop hybrid circulatory model: the effect of the arterial lumped parameter loading structure on selected ventricular and circulatory variables

• Autorzy: Kozarski M. , Ferrari G. , Zieliński K. , Górczyńska K. , Pałko K. J. , Tokarz A. , Darowski M.
• Języki publikacji: EN

Abstrakty

EN

Different combinations of the artero-ventricular coupling design (numerical, physical and hybrid) and the arterial system structure (four-element standard, simplified, modified and three-element three-lump "ladder" Windkessel) have been applied in an open loop circulatory model to test their influence on selected ventricular and circulatory variables. Numerical investigations have shown that a four-element Windkessel with an introduced in series lumped inertance can evoke some numerical problems e.g. when combined with the simplified ventricular model containing "ideal" zero switching time heart valves or constant valve resistance during opening. The four-element Windkessel structure modification i.e. replacing the in series inertance by the parallel one, considerably improves the network match. Also the three-element three-lump "ladder" Windkessel has been found very useful in the blood circulation modelling thanks to relatively small input inertance and high input capacitance of its first lump.

Słowa kluczowe

EN

hybrid numerical-physical model; lumped parameter model; Windkessel model; ventricular loading

PL

model numeryczny; model hybrydowy; model o parametrach skupionych; model Windkessel'a; obciążenie komorowe

• Wydawca: Nałęcz Institute of Biocybernetics and Biomedical Engineering of the Polish Academy of Sciences ; Elsevier
• Czasopismo: Biocybernetics and Biomedical Engineering
• Rocznik: 2008
• Tom: Vol. 28, no. 1
• Strony: 17--27
• Opis fizyczny: Bibliogr. 19 poz., rys., tab., wykr.

Twórcy

autor

Kozarski M.

autor

Ferrari G.

autor

Zieliński K.

autor

Górczyńska K.

autor

Pałko K. J.

autor

Tokarz A.

autor

Darowski M.

• Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, ul. Ks. Trojdena 4, 02-109 Warsaw, Poland,

Bibliografia

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