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The maximum rate of left ventricular pressure rise (LV dp/dtmax) is a good indicator of ventricular contractility. However, its measurement requires invasive cardiac catheterization. By applying the relationship between the ratio of aorta (Ao) dp/dtmax to LV dp/dtmax and the mean artery pressure (MAP), we tested the possible noninvasive estimation of LV dp/dtmax by the maximum rate of pressure...
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