We proposed a two-dimensional deformation analysis method in regional ventricular wall motion by using tagged magnetic resonance (MR) images to evaluate the wall functions. In a region surrounded by four image slices, a material point is traced to obtain the displacement and strains. MR images were taken 24 phases over one cardiac cycle in the long and short axes of heart.
Finite Element Analysis ; Humans ; Image Processing, Computer-Assisted ; methods ; Magnetic Resonance Imaging ; methods ; Myocardial Contraction ; physiology ; Stress, Mechanical ; Ventricular Function, Left ; physiology