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Figure 2 Tissue velocity, displacement, strain, and sonomicrometry traces from the mid left ventricular anterior wall in a representative experiment at baseline and during ischemia. Note that peak systolic ejection velocity was essentially similar at different levels of ischemia while systolic strain and displacement were markedly different. Ao = aortic; ECG = electrocardiogram; LA = left atrium; LV dP/dt = time derivative of LV pressure. Other abbreviations as in Figure 1.
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