Related Experiment Video
Updated: May 11, 2026
Optical Coherence Tomography Based Biomechanical Fluid-Structure Interaction Analysis of Coronary Atherosclerosis Progression
Published on: January 15, 2022
Simulation of blood flow coronary artery with consecutive stenosis and coronary-coronary bypass
Seyed Esmail Razavi1, Ramin Zanbouri, Omid Arjmandi-Tash
1School of Mechanical Engineering, University of Tabriz, Tabriz, Iran.
Introduction:
In this research the behavior of coronary arteries has been studied with symmetric and asymmetric consecutive stenosis, and grafted vessels.
Methods:
The incompressible Navier-Stokes and energy equations were discretized with second-order upwind method. Assumptions such as Newtonian fluid, wall rigidity and steady-flow were used.
Results:
All the calculations showed the same results with Newtonians and non- Newtonian fluids. It was found that the possibility of stenosis be reduced by increasing the graft angle. However, there exists further stenosis possibility. Among the three graft angles 20, 30 ˚ and 40, the 30 ˚ was found to be the reliable ones.
Conclusion:
Based on these findings, it can be deduced that there would be a high risk of further atherosclerosis when the first stenose has the maximum percentage.
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