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Chiffres clefs

217 personnes travaillent au LJLL

83 personnels permanents

47 enseignants chercheurs

13 chercheurs CNRS

9 chercheurs INRIA

2 chercheurs CEREMA

12 ingénieurs, techniciens et personnels administratifs

134 personnels non permanents

85 doctorants

16 post-doc et ATER

5 chaires et délégations

12 émérites et collaborateurs bénévoles

16 visiteurs


Chiffres janvier 2014


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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