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. 2014 May 28;9(5):e97455. doi: 10.1371/journal.pone.0097455

Figure 1. The echocardiographic parameters and the mathematical model for computing the myocardium stiffness of the left ventricle.

Figure 1

A: The measured echocardiographic parameters. IVSd: intraventricular septal width in diastole; LVIDd: left ventricular internal dimension in diastole; LVPWd: left ventricular posterior wall width in diastole; and LVIDs: left ventricular internal dimension in systole. B: The measuring circumferential strain in the short-axis, at the papillary muscle level. C: The model of the cylinder, gross and cross-section.