Analysis of blood flow, pressure and velocity in a Stented Abdominal Aortic Aneurysm model

Abstract

This paper describes the analysis of blood flow, pressure and velocity in the abdominal aortic aneurysm (AAA) model, with and without stent graft (SG) placement. The aim of this study is to investigate the effectiveness of using stent graft (SG) in treating abdominal aortic aneurysm (AAA) and to protect the weak wall of an aneurysm sac from rupture. Two 3Dabdominal aortic aneurysm (AAA) models were constructed with and without a linear stent-graft using a computer aided software, Solidworks 2005. Computational fluid dynamic software has been employed to solve for blood flow, sac pressure and velocity of blood in the aneurysm sac and SG. Simulation results indicate that implanting a SG in an AAA can significantly reduce the sac pressure, increase velocity of blood and restore normal blood flow.