Simulation Analysis of Elastic Model Smoothing Filter Based Improved 3D Myocardial Contraction Imaging System

@cs.tsukuba.ac.jpAbstract:Decrease of myocardial motion caused by changes in cardiac muscle stiffness often appears in the early stage ofischemic heart disease. Three-dimensional assessment of the stiffness distribution is required for accurate diagnosisof ischemic heart disease. However, conventional Doppler and strain-rate imaging techniques do not provide usquantitative image. For resolving this problem, a novel myocardial contraction imaging system which utilize elasticmodel based displacement smoothing filter was proposed. In order to evaluate this method, we perform a newsimulation analysis method which is based on deformable model of the left ventricle. By using this simulationmethod, more complex and realistic myocardial contracting motion can be simulated. From the simulation resultswe can get the following conclusions: the strain image’s accuracy and contrast are improved compared to normalsmoothing filter.Keywords:Myocardial contraction function, Deformable model, Left ventricle, Strain tensor, Elastic model