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Estimating material properties of personalized human left ventricular (LV) modelling is a central problem in biomechanical studies. In this work we use deep learning (DL) method to evaluating the passive myocardial mechanical properties inversely. In the first part of the paper, we establish a standardized geometric model of the LV. The geometric m...
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... calculation process will be slow if the mesh is too dense, and the result will not be accurate if the mesh step is too large. ξ is a constant to make the grid space slightly larger than the original LV, as shown in Figure 2. When the grid node is inside the shape of the LV wall, the node is assigned a value of 1; When the grid node is outside the shape of the LV wall, the node is assigned a value of 0. Then the original LV can be approximately represented by a three-dimensional matrix consisting of values 0 and 1, and the total number of nodes with the value of 1 in the matrix represents the shape of the left ventricle. ...
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