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189 personnes travaillent au LJLL

86 permanents

80 chercheurs et enseignants-chercheurs permanents

6 ingénieurs, techniciens et personnels administratifs

103 personnels non permanents

74 doctorants

15 post-doc et ATER

14 émérites et collaborateurs bénévoles


Chiffres janvier 2022


Activité électrique du coeur

Our interest in cardiac electrical activity has led us to model the heart as follows : first a reconstruction of the geometry is performed (restricted here to two ventricules) and a 3D mesh is then constructed ; then the electrical signal propagation is described by Aliev-Panfilov 2-variables set of equations which are discretized by a finite element method.

The chosen model is able to reproduce an action potential quite accurately, qualitatively close to the physiological one.

The simulation presented here (Medit) shows a signal initiated at the level of the sinusal node, propagating faster along its bundle (bundle of Hiss), and reaching rapidly both of the cardiac chambers.

A. Franchitti & Y. Maday

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