Artery Research

Volume 18, Issue C, June 2017, Pages 14 - 21

Viscoelastic mechanical measurement of the healthy and atherosclerotic human coronary arteries using DIC technique

Authors
Alireza Karimia, *, Ahmad Shojaeia, Reza Razaghib
aBasir Eye Health Research Center, Tehran 14186, Iran
bMechanical Engineering Department, University of Tabriz, Tabriz 51666, Iran
*Corresponding author. Department of Mechanical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan. Fax: +81 92 802 0001. E-mail address: karimia@outlook.com (A. Karimi).
Corresponding Author
Alireza Karimi
Received 3 May 2016, Revised 18 November 2016, Accepted 13 February 2017, Available Online 8 March 2017.
DOI
https://doi.org/10.1016/j.artres.2017.02.004How to use a DOI?
Keywords
Coronary artery, Atherosclerosis, Mechanical properties, Relaxation test, Quasilinear viscoelastic model
Abstract

Purpose: Atherosclerotic is a specific form of vascular disease showed to be in charge of the 30% of mortalities in the United States alone. Many studies so far have been reported on the linear and nonlinear mechanical properties of the human and animal coronary arteries. However, the Quasilinear Viscoelastic (QLV) mechanical behavior of the healthy and atherosclerotic human coronary arteries have not been well quantified in spite of the time-dependent mechanical behavior of the arterial walls. This study was aimed to set up a new relaxation viscoelastic tests to characterize the QLV parameters of the healthy and atherosclerotic human coronary arteries.

Methods: Ten healthy and atherosclerotic human coronary arteries were subjected to relaxation test and the QLV parameters were calculated by comparing the QLV model to that of stress-relaxation data.

Results: The findings showed the highest stress in the atherosclerotic coronary samples (292.02 ± 18.14 kPa) (Mean ± SD) which is found to be higher than that of the healthy ones (18.12 ± 2.88 kPa) (p < 0.05). In addition, the stress-relaxation diagrams showed that the healthy coronary arteries can reach to a balance in slightly a lower time (1400 ± 24.15 sec) compared to the atherosclerotic ones (1800 ± 38.12 sec) (p < 0.05).

Conclusions: These data might provide a deep understanding not only for the viscoelastic time dependent mechanical behavior of the healthy and atherosclerotic human coronary arteries but also for the biomechanical experts in different fields of research including, tissue engineering, intervention and bypass surgery and stenting.

Copyright
© 2017 Association for Research into Arterial Structure and Physiology. Published by Elsevier B.V. All rights reserved.
Open Access
This is an open access article distributed under the CC BY-NC license.

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Journal
Artery Research
Volume-Issue
18 - C
Pages
14 - 21
Publication Date
2017/03
ISSN (Online)
1876-4401
ISSN (Print)
1872-9312
DOI
https://doi.org/10.1016/j.artres.2017.02.004How to use a DOI?
Copyright
© 2017 Association for Research into Arterial Structure and Physiology. Published by Elsevier B.V. All rights reserved.
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - JOUR
AU  - Alireza Karimi
AU  - Ahmad Shojaei
AU  - Reza Razaghi
PY  - 2017
DA  - 2017/03
TI  - Viscoelastic mechanical measurement of the healthy and atherosclerotic human coronary arteries using DIC technique
JO  - Artery Research
SP  - 14
EP  - 21
VL  - 18
IS  - C
SN  - 1876-4401
UR  - https://doi.org/10.1016/j.artres.2017.02.004
DO  - https://doi.org/10.1016/j.artres.2017.02.004
ID  - Karimi2017
ER  -