Fiche publication
Date publication
novembre 2010
Auteurs
Membres identifiés du Cancéropôle Est :
Pr MARESCAUX Jacques
,
Pr SOLER Luc
Tous les auteurs :
Hostettler A, George D, Remond Y, Nicolau SA, Soler L, Marescaux J
Lien Pubmed
Résumé
This article presents a method of predictive simulation, patient-dependant, in real time of the abdominal organ positions during free breathing. The method, that considers both influence of the abdominal breathing and thoracic breathing, needs a tracking of the patient skin and a model of the patient-specific modification of the diaphragm shape. From a measurement of the abdomen viscera kinematic during free breathing, we evaluate through a finite element analysis, the stress field sustained by the organs for a hyperelastic mechanical behaviour using large strain theory. From this analysis, we deduce an in vivo Poisson's ratio and a homogeneous bulk modulus of the liver and kidneys, and compare it to the ones in vitro available in the literature.
Référence
Comput Methods Programs Biomed. 2010 Nov;100(2):149-57
