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Figure 1 Relationship Between Left Ventricular Circumferential Strain and Radial Displacement
We used 2-dimensional speckle tracking echocardiography for determining circumferential strain (x-axis) and radial displacement (y-axis) in patients with constrictive pericarditis (CP), patients with restrictive cardiomyopathy (RCM), and control subjects (CON). Each plotted value represents peak end-systolic circumferential strain and radial displacement values averaged from apex, mid, and basal segments for 3 consecutive heartbeats. On combining the data from the 3 groups, peak radial displacement showed good correlation with peak circumferential shortening strains.
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