Abstract: The invention relates to a method for simulating the deformation of an IMD after implantation in a natural cavity, from a three-dimensional model of a wall of the cavity, comprising the steps of: determination of an intermediate deformation state of a numerical IMD, deformed as a function of a shape of the wall model while remaining included in said shape, calculation of a mechanical equilibrium state of the numerical IMD from the intermediate deformation state, comprising the calculation of mechanical stresses undergone by the numerical IMD in the intermediate deformation state which are a function of the mechanical behaviours of the numerical IMD and the wall model, and relaxation of said stresses, the behaviour of the wall model being taken as non-deformable rigid during the calculation of the mechanical equilibrium state, the mechanical behaviour of the numerical IMD, and/or the rest state of the numerical IMD, being different between the determination of the intermediate deformation state and the calcul

Abstract: A method for determining the positioning in deployed position of an expandable medical device type implant, including, from a three-dimensional image of a region of interest including the vascular structure, the following steps: determination of a centreline of the vascular structure, positioning of the IMD according to an initial position, around the centreline, simulation of the final position of the IMD after deployment, as a function of the stresses exerted by the walls of the vascular structure on the IMD, the determination of the centreline consisting in placing points so as to minimise a travel time of fluid along said points between an input point and an output point, the simulation of the final position of the IMD taking account of a level of longitudinal push-pull intended to be applied to the IMD during its implantation.