Abstract
In this work, we first investigated the hemodynamic parameters in the case of a normal aortic arch anatomy and in the case of aortic coarctation anatomy, both generated by using CFX-ICEM-ANSYS simulations. Then, we compared these results with those obtained for a proposed model without and with aortic coarctation, while introducing a real tridimensional magnetic resonance imaging geometry in the simulation process. The conclusion is that our proposed model reproduces, with a high agreement, the real case obtained from imaging data.
Highlights
One of the main goals for numerical investigations of the blood flow in the thoracic aorta, and in particular in the aortic arch, is to well understand changes flow patterns and associated pressures in the presence of aortic pathologies, such as aortic coarctation or atherosclerotic diseases
Aortic coarctation induces an internal geometry deformation of the aortic wall, which induces at its turn significant changes in the hemodynamic characteristics of the flow
We found many experimental and computational investigations of blood flow in the human aortic arch, [4]-[7]
Summary
One of the main goals for numerical investigations of the blood flow in the thoracic aorta, and in particular in the aortic arch, is to well understand changes flow patterns and associated pressures in the presence of aortic pathologies, such as aortic coarctation or atherosclerotic diseases. We were interested in studying the simulation of the blood flow in thoracic aorta, by using some imported recent tridimensional magnetic resonance imaging data of a real healthy aorta and a real aorta in presence of coarctation, provided by “Laboratoire d’Imagerie Médicale-Université de Pierre et Marie Curie” (LIB-UPMC), in the context of a specific CFD software (ANSYS-ICEM-CFX), to build a meshing and elaborate an adapted geometry, and to examine the obtained results of the realized computational simulation. We used the LIB-UPMC imaging data concerning a healthy aorta and an aorta with a coarctation as well as data concerning the blood flow (aorta section, velocity and flow-rate) Using these imaging data, we constructed geometries of these two real aortas and performed on them the same computational simulation as used on our models, in order to compare results. We use the blood flow imaging data to characterize aorta section, velocity and flow rate as well as the pressure field
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
