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Figure 1 Left ventricular function in control patients and in patients with AS. (Both panels) The solid and parallel dashed lines define the relationship between midwall fractional shortening and mean systolic stress, as well as its 95% prediction interval, and calculated using a least squares linear regression analysis for 84 patients found not to have cardiac pathology. The shortening-stress relationship was characterized as noted in the "Methods" section identically for both the 84 patients used to generate the regression analysis and for the study patients having AS. (Panel A) Individual values for the 15 patients in this study. (Panel B) Summary data for these same patients grouped by functional status. AS = aortic stenosis.
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