is to use numerical simulation of the hemodynamics of the aortic valve in the specific case of the Ross procedure, which consists in replacing the aortic valve by the patient’s own pulmonary valve. Despite well-identified advantages of this surgery operation in terms of quality-of-life improvements, long-term post-surgery issues still need to be characterized and better understood in a large context involving both clinical aspects, hemodynamics and biomechanical properties of the valve. The unsteady velocity and pressure fields of blood within one and many cardiac cycles, as well as the wall shear stress distributions in pathological conditions will be analyzed to improve the current operative techniques of surgical replacement of the aortic valve in the context of the Ross procedure.
A dedicated numerical simulation tool will be used, based on the numerical methods developed at M2P2 in the context of the numerical simulation of complex geometries immersed in biological fluids (Immersed boundary methods and lattice Boltzmann method). This thesis will be performed between the medical-surgical pediatric and congenital cardiology of the Timone (AP-HM) and the laboratory of Mechanics Modeling (M2P2, UMR CNRS) Aix Marseille University. Close interactions with experts in numerical simulations and surgeons (working at M2P2 and AP-HM) are expected.
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