Naslov
A FOUR ELEMENT VISCO-ELASTIC WINDKESSEL MODEL OF THE ARTERIAL TREE

Autori
Virag, Zdravko ; Lulić, Fabijan ; Korade, Ivan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 29th Danubia-Adria-Symposium on Advances in Experimental Mechanics / Ognjanović, Miloslav ; Stanković, Miloš ; Ristić, Miloš - Beograd : PLANETA - PRINT, 2012, 42-43

ISBN
978-86-7083-762-1

Skup
29th Danubia-Adria-Symposium on Advances in Experimental Mechanics

Mjesto i datum
Beograd, Srbija, 26.09.2012. - 29.09.2012

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
visco-elastic; windkessel model; arterial tree; WK4

Sažetak
The simplest lumped model of the arterial tree can be represented by a viscoelastic chamber: with the heart at the inlet and capillary bed at outlet. The arterial wall impedance follows from a constitutive pressure-diameter relationship and depending on the model of this relationship, different lumped model can be derived. The goal is to derive a new four-element windkessel model and to compare it to the popular four-element windkessel model (WK4), in terms of their ability to mimic the measured arterial input impedance. The proposed model and WK4 model have been applied to the measured aortic root pressure and aortic valve flow in three typical subjects of different ages. Model parameters were identified by minimizing RMSE between measured and calculated pressure by prescribing measured aortic valve flow. In all cases the proposed model results in lower RMSE and during diastole reconstructs better the measured pressure than the WK4 model.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA