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. 2015 Mar;5(1):29–47. doi: 10.1086/679699

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© 2015 by the Pulmonary Vascular Research Institute. All rights reserved.

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Two-dimensional echocardiography of RV and LV size and ventricular interdependence. A, Apical 4-chamber view showing an enlarged RV, where the RV is larger than the LV. B, Parasternal long-axis view with an enlarged RV and bowing of the septum into the LV chamber. C, Flattening of the ventricular septum, forming a D-shaped short-axis LV appearance. D, Representation of the end-diastolic eccentricity index, which is the ratio between the LV anteroposterior dimension (D1) and LV septolateral dimension (D2). LV: left ventricle; RA: right atrium; RV: right ventricle.