title: Shear mechanical properties of the spleen: experiment and analytical modelling.
abstract: This paper aims at providing the first shear mechanical properties of spleen tissue. Rheometric tests on porcine splenic tissues were performed in the linear and nonlinear regime, revealing a weak frequency dependence of the dynamic moduli in linear regime and a distinct strain-hardening effect in nonlinear regime. These behaviours are typical of soft tissues such as kidney and liver, with however a less pronounced strain-hardening for the spleen. An analytical model based on power laws is then proposed to describe the general shear viscoelastic behaviour of the spleen.
authors.affiliation: Université de Lyon, F-69622, Lyon, France. stephane.nicolle@ifsttar.fr
authors.forename: S
authors.initials: S
authors.lastname: Nicolle
authors.forename: L
authors.initials: L
authors.lastname: Noguer
authors.forename: J-F
authors.initials: JF
authors.lastname: Palierne
mesh_terms: D000818:Animals; D001696:Biomechanical Phenomena; D002623:Chemistry Techniques, Analytical; D003198:Computer Simulation; D004548:Elasticity; D004867:Equipment Design; D007668:Kidney / Q000378:metabolism / Q000502:physiology; D008099:Liver / Q000378:metabolism / Q000502:physiology; D008954:Models, Biological; D009991:Oscillometry; D033081:Shear Strength; D013154:Spleen / Q000033:anatomy & histology / Q000502:physiology*; D013314:Stress, Mechanical; D013552:Swine; D014783:Viscosity