Finite-Element Model for the Mechanical Behavior of the Left Ventricle: PREDICTION OF DEFORMATION IN THE POTASSIUM-ARRESTED RAT HEART Export

@article{citeulike:6083376, abstract = {A finite-element model is used to analyze the mechanical behavior of the left ventricle. The ventricle is treated as a heterogeneous, linearly elastic, thickwalled solid of revolution. The inner third of the ventricular wall is assumed to be transversely isotropic with a longitudinal Young's modulus, transverse modulus, and shear modulus of 60 g/cm2, 30 g/cm2, and 15.5 g/cm2, respectively. In the outer two-thirds of the ventricular wall the myocardium is assumed to be isotropic with a Young's modulus of 60 g/cm2. Polsson's ratio is assumed to be equal to 0.45 throughout the ventricular wall. The valvular ring at the base of the ventricle is simulated by a homogeneous layer cf collagen. The model appears to predict gross free-wall deformation in the left ventricle of the potassium-arrested rat heart fixed in situ. The presence of a relatively compliant transversely isotropic region near the endocardial surface results in significantly lower axial and circumferential stresses in this region than are present in a homogeneous, isotropic model. The presence of a simulated valvular ring results in a concentration ofrelatively large stresses near the base of the ventricle.}, author = {Janz, Ronald F. and Grimm, Arthur F.}, citeulike-article-id = {6083376}, citeulike-linkout-0 = {http://circres.ahajournals.org/content/30/2/244.abstract}, citeulike-linkout-1 = {http://circres.ahajournals.org/content/30/2/244.full.pdf}, citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/5061321}, citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=5061321}, day = {1}, journal = {Circ Res}, month = {February}, number = {2}, pages = {244--252}, posted-at = {2009-11-07 21:56:49}, priority = {2}, title = {Finite-Element Model for the Mechanical Behavior of the Left Ventricle: PREDICTION OF DEFORMATION IN THE POTASSIUM-ARRESTED RAT HEART}, url = {http://circres.ahajournals.org/content/30/2/244.abstract}, volume = {30}, year = {1972} }

TY - JOUR ID - citeulike:6083376 L3 - citeulike-article-id:6083376 N2 - A finite-element model is used to analyze the mechanical behavior of the left ventricle. The ventricle is treated as a heterogeneous, linearly elastic, thickwalled solid of revolution. The inner third of the ventricular wall is assumed to be transversely isotropic with a longitudinal Young's modulus, transverse modulus, and shear modulus of 60 g/cm2, 30 g/cm2, and 15.5 g/cm2, respectively. In the outer two-thirds of the ventricular wall the myocardium is assumed to be isotropic with a Young's modulus of 60 g/cm2. Polsson's ratio is assumed to be equal to 0.45 throughout the ventricular wall. The valvular ring at the base of the ventricle is simulated by a homogeneous layer cf collagen. The model appears to predict gross free-wall deformation in the left ventricle of the potassium-arrested rat heart fixed in situ. The presence of a relatively compliant transversely isotropic region near the endocardial surface results in significantly lower axial and circumferential stresses in this region than are present in a homogeneous, isotropic model. The presence of a simulated valvular ring results in a concentration ofrelatively large stresses near the base of the ventricle. IS - 2 JF - Circ Res EP - 252 TI - Finite-Element Model for the Mechanical Behavior of the Left Ventricle: PREDICTION OF DEFORMATION IN THE POTASSIUM-ARRESTED RAT HEART VL - 30 SP - 244 AU - Janz, Ronald AU - Grimm, Arthur PY - 1972/02/01/ UR - http://circres.ahajournals.org/content/30/2/244.abstract ER -