Simulation of Hemodynamic Behavior of Blood Flow in the Aorta Before an‎d After Surgery

12/21/2025 12:00:00 AM

The aorta is the bodyʹs most important blood vessel. Various diseases threaten this vessel. One of these diseases is aneurysm. Different types of stents are used to treat these diseases. One of the less invasive methods of treatment is a conventional surgery called endovascular aortic repair. The goal of treating an aortic aneurysm is to prevent the aneurysm from growing an‎d rupturing. In endovascular repair, the surgeon inser‎ts a thin, flexible tube (catheter) into a blood vessel, usually in the groin, an‎d guides it to the aorta. A metal mesh tube called a stent graft is placed at the end of the catheter at the site of the aneurysm. This graft strengthens the weak part of the aorta to prevent the aneurysm from rupturing. In this study, the interaction an‎d interaction of these two has been investigated by simulation using computational fluid dynamics tools an‎d coupling the two computational domains of fluid (blood) an‎d solid (vein wall). The simulation has been performed for a real patient in two states before an‎d after surgery. First, the geometry of the vessel has been extracted from CT scan images using Mimics software. Then, the simulation has been performed using ANSYS software. Parameters such as velocity an‎d hemodynamic indices (TAWSS, OSI, HOLMES) have been used for the final analysis. By comparing the mentioned hemodynamic parameters with each other, it is possible to examine the possible areas of growth an‎d re-rupture. These results provide a better perspective to the physician for future decision-making. The challenges to achieve a model that can have sufficient accuracy to provide a more accurate insight continue.

شبيه سازي , رگ آئورت , استنت , ديناميك سيالات محاسباتي , پارامترهاي هموديناميكي , ترميم اندووسكولار آئورت

Simulation , Aorta , Stent , Computational Fluid Dynamics , Hemodynamic Parameters , Endovascular Aortic Repair

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