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Simulation and analysis of aortas with aneurysm using finite element method

Kyparissis Konstantinos

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Summary

The development of technology has opened up new horizons in healthcare by transforming the way we manage medical information and one of the keys to this development is the global trend towards the creation of digital patient twins, a complete digital medical record of patients. The topic of this thesis aims to create such a digital replica and focuses on the analysis of methods for the diagnosis of aneurysmal aortas in a collaboration between computational engineering and medicine. The demands and needs of people suffering from this very serious pathological condition are great and can have devastating consequences if not treated in time and effectively. For this reason, the use of simulations can help us to better understand how an aneurysmal aorta behaves, to develop new methods of prevention and treatment, to better understand the factors that influence its dynamics and to assess more clearly the situation of each patient.This thesis deals with the analysis of data, using computational mechanics, collected from MRI scans of patients diagnosed with aneurysm. The 3D geometries are imported into a simulation environment for modelling and the finite element and shell element method with linear static analysis is used. This research aims to understand the structure and behavior of aneurysmal aortas under pressure conditions, with the aim of identifying the regions where the maximum stresses and deformations develop on their surfaces. The use of simulation and analysis methods is a critical tool for the successful application of the finite element method in this area of research effort. The goal is to create reliable digital models, which can eventually lead to digital twins, and computational mechanics is one of the tools that will assist us in this effort to explore how it can help prevent and address this dangerous phenomenon.

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