@Article{AAMM-1-151, author = {D. and Valdez-Jasso and and 20603 and and D. Valdez-Jasso and H. T. and Banks and htbanks@ncsu.edu and 20604 and and H. T. Banks and M. A. and Haider and and 20605 and and M. A. Haider and D. and Bia and and 20606 and and D. Bia and Y. and Zocalo and and 20607 and and Y. Zocalo and R. L. and Armentano and and 20608 and and R. L. Armentano and M. S. and Olufsen and and 20609 and and M. S. Olufsen}, title = {Viscoelastic Models for Passive Arterial Wall Dynamics}, journal = {Advances in Applied Mathematics and Mechanics}, year = {2009}, volume = {1}, number = {2}, pages = {151--165}, abstract = {

This paper compares two models predicting elastic and viscoelastic properties of large arteries. Models compared include a Kelvin (standard linear) model and an extended 2-term exponential linear viscoelastic model. Models were validated against in-vitro data from the ovine thoracic descending aorta and the carotid artery. Measurements of blood pressure data were used as an input to predict vessel cross-sectional area. Material properties were predicted by estimating a set of model parameters that minimize the difference between computed and measured values of the cross-sectional area. The model comparison was carried out using generalized analysis of variance type statistical tests. For the thoracic descending aorta, results suggest that the extended 2-term exponential model does not improve the ability to predict the observed cross-sectional area data, while for the carotid artery the extended model does statistically provide an improved fit to the data. This is in agreement with the fact that the aorta displays more complex nonlinear viscoelastic dynamics, while the stiffer carotid artery mainly displays simpler linear viscoelastic dynamics.

}, issn = {2075-1354}, doi = {https://doi.org/}, url = {http://global-sci.org/intro/article_detail/aamm/8363.html} }