Biomechanical characterization of the ascending thoracic aortic aneurysms
type: Dataset
description: Epidemiology of aortic aneurysms is a major public health issue that affects a significant proportion of the population in industrialized countries and can cause the death of the patient in case of rupture of the aneurysm.Currently the only criteria for surgery are based on the morphology of the aneurysm, and there are problems to accurately assess the risk of rupture for each patient.The aim of this thesis was to develop a method to identify the mechanical properties of the arterial wall in a personalized way to refine the criteria for surgery.Inflation tests, full-field measurements and a methodology developed were used in order to quantify experimentally the stress distribution of aneurysms. It was possible to highlight the appearance of localized weakening in the wall which will let us predict the location of the rupture on the aneurysm. Then a method was developed to identify the mechanical properties of the aortic tissue. It was possible to highlight the heterogeneity of arterial tissue and locate the places where the rupture of the tissue may occur.The identification of the aneurysm’s mechanical properties from experimental data will improved arterial numerical models used today. In addition, the methodology developed for the analysis of the rupture of aneurysms during this thesis opens the door to a step that aims to develop the in vivo mechanical characterization by the use of medical imaging. The ultimate goal will be to assess the risk of rupture of the aneurysm of each patient in a noninvasive manner.
identifier: NNT: 2014EMSE0727
issued: 2026-05-05T10:39:52.066122
language: fr
modified: 2026-05-05T10:39:52.066128
contact point: Organization
  fn: CCSD
keyword: aneurysm
keyword: aorte-thoracique-ascendante
keyword: ascending-thoracic-aorta
keyword: biomechanical-characterization
keyword: caracterisation-biomecanique
keyword: identification-des-lois-de-comportement
keyword: infoeu-reposemanticsdoctoralthesis
keyword: mechanical-properties-identification
keyword: sdvsalife-sciences-q-bioagricultural-sciences
keyword: theses
landing page: https://theses.hal.science/tel-00994236

Biomechanical characterization of the ascending thoracic aortic aneurysms
type: Distribution
format: HTML
issued: 2026-05-05T10:39:52.069642
modified: 2026-05-05T10:39:52.052465
access URL: https://theses.hal.science/tel-00994236

test_moissonnage_selune
type: Agent