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Figure 5 Scatterplots of the correlations between infarct area (% risk area) and increase in thickening (% baseline) during dobutamine infusion. Significant inverse correlations were observed at 10, 20 and 30 µg·kg^–1·min^–1 dobutamine infusion, whereas there was no significant correlation during 5 µg·kg^–1·min^–1 dobutamine infusion. Regression lines are superimposed on the scatterplots.