Simulation du mouvement des organes de l’abdomen : application aux déformations du foie et de ses vascularisations en vue de d’une reconstitution en temps réel lors d’une chirurgie mini-invasive

Abstract : Numerical models used for surgical application require simultaneously a precision close to the millimeter, high speed resolution and to account for the patient variabilities. In the present study, we develop a numerical model of the liver, which relies on hyper-elastic mechanical behavior completed with the vascularization impact on the macroscopic level. Once completed and implemented, the model is treated with model reduction and learning tools in order to provide a real-time response. Mechanical properties are extracted from numerical indentations and homogeneised to build a model accounting for the impact of the vascularization. Once validated on a real sample, simulated deformations are used as input to a learning solution to build a functional solution. Finally, the function is integrated in a surgical tool, to provide a quick and precise representation of the liver deformations.
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Michaël Kugler. Simulation du mouvement des organes de l’abdomen : application aux déformations du foie et de ses vascularisations en vue de d’une reconstitution en temps réel lors d’une chirurgie mini-invasive. Mécanique des matériaux [physics.class-ph]. Université de Strasbourg, 2018. Français. ⟨NNT : 2018STRAD018⟩. ⟨tel-02159441⟩

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