Patient-specific CFD simulations using MPTT rheological model with 4D cardiovascular MRI validation

Abstract

23rd Congress of the European Society of Biomechanics, SEVILLE, ESPAGNE, 02-/07/2017 - 05/07/2017Cardiovascular diseases are the leading cause of death worldwide. Their analysis leads to multidisciplinary problems that require diversity, transversal and complementary approaches. This contribution is part of a research project in Computer Aided Surgery and intends to contribute to the improvement of TEVAR procedures in terms of accuracy and optimization of the operating strategy. It aims to virtually simulate the whole endovascular stent graft procedure for an aortic aneurysm. An image correlation technique was used during an expansion test and a uniaxial tensile test to calculate strains on the aortic arch. Simulations of blood flow in the thoracic aorta were then performed in a healthy patient using a Modified Phan-Thien and Tanner rheological model. A fluid-structure coupling validates the results by approaching the dynamic imaging conditions