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Figure 1 Representative examples of finite element meshes and color stress maps demonstrating the global and regional differences in left ventricular end-systolic wall stress between a sham-operated rat (A and B) and an infarcted rat (C and D) 21 days after the procedures. Each triangle designates the subdivisions of infarcted, border and noninfarcted regions, respectively. The same color scale was applied for both models. The left ventricle from the infarcted rat is dilated with focal areas of high ESLV stress concentrated in the regions that connect normal with infarcted tissue (arrowheads).