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Three-dimensional finite element meshes of human femur are generated using an automatic grid-based method for biomechanical analysis purpose. The meshing algorithm firstly preproceses the CT slices to extract geometrical information of the femur structure, and then organizes a tagged background grid based on the segmented imaging dataset. The surface triangular mesh is constructed by isosurface extraction,...
Atrial fibrillation is caused by some excited cardiac myocardium re-stimulated by the recurrent impulse that made the left atrium contraction irregularly. The changes of cardiac patterns could be recorded by the CT scan of the multi-slices and multi-frame technology. The abnormal rhythmic wall motion can be analyzed between the systolic of atrium and diastolic of atrium. This study has developed a...
Finite element model could be generated by computed tomography (CT) data set which provide accurate information about bone geometry and tissue density. In this work, an efficient approach for computing CT numbers for each element is presented. Mechanical properties of bone tissue can be estimated according to the relationship between tissue density and CT numbers. The experimental results show that...
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