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Figure 5 Color map depicting non-contractile and dysfunctional areas of myocardium detected by tagging magnetic resonance imaging. Bar color demonstrates the spectrum in change of systolic cardiac function: blue and green colors identify normal contractile areas and red colors represent dysfunctional areas. Non-treated animals exhibited worsening regional systolic function during the 8-week period, whereas a visual improvement was noticed in the mesenchymal stem cell (MSC)-treated animals.