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. Author manuscript; available in PMC: 2007 Sep 3.
Published in final edited form as: J Electrocardiol. 2006 Sep 8;39(4 Suppl):S24–S27. doi: 10.1016/j.jelectrocard.2006.05.031

Fig. 2.

Fig. 2

The circumferential strain vs time in a normal volunteer and in a patient with HCM.22 The primary feature that is different is the rapid relaxation of the normal left ventricle during early diastole vs the slow relaxation of the left ventricle with HCM. This feature is quantified in the figure with percentage circumferential strain per second (% Ecc/s). The mean value of this strain rate from 8 patients and 6 normals is shown in the bar graph on the right (normals are the dark gray bars; patients with HCM, light gray bars). Figure adapted from the PhD thesis of Daniel Ennis, Johns Hopkins University, with permission.