Patient-specific simulation of stent-graft deployment within an abdominal aortic aneurysm

TL;DR

This paper presents a patient-specific finite element simulation of stent-graft deployment in abdominal aortic aneurysm, enabling rapid and accurate pre-operative planning based on real patient data.

Contribution

It introduces a realistic, efficient simulation method for stent-graft deployment that closely matches post-operative outcomes, advancing predictive surgical planning.

Findings

Simulation results agree with post-operative imaging

Deployment simulation completed in less than 2 hours

Method enables personalized pre-surgical planning

Abstract

In this study, finite element analysis is used to simulate the surgical deployment procedure of a bifurcated stent-graft on a real patient's arterial geometry. The stent-graft is modeled using realistic constitutive properties for both the stent and most importantly for the graft. The arterial geometry is obtained from pre-operative imaging exam. The obtained results are in good agreement with the post-operative imaging data. As the whole computational time was reduced to less than 2 hours, this study constitutes an essential step towards predictive planning simulations of aneurysmal endovascular surgery