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Fig. 1 | BMC Cardiovascular Disorders

Fig. 1

From: Longitudinal shortening remains the principal component of left ventricular pumping in patients with chronic myocardial infarction even when the absolute atrioventricular plane displacement is decreased

Fig. 1

Illustration of the method for quantifying atrioventricular plane displacement (AVPD), septal and lateral contribution to left ventricular stroke volume (LVSV). Short-axis (SA) and four-chamber (4Ch), three-chamber (3Ch) and 2-chamber (2Ch) images are shown in end-diastole (ED) and end-systole (ES). The epicardial border of the SA is shown as a solid line in ED and broken line in ES. The ED epicardial contour is transposed on the ES image for comparison. The difference between the epicardial contours in the SA images are defined as the radial pumping and is subdivided into the septal (black arrows) and lateral (white arrows) contributions as defined by the right ventricular septal insertion points (marked with circles). The AVPD was calculated by marking the most basal part of the muscular wall in ED and ES as denoted by the white circles. The position of the AV-plane in ED is transposed to the ES image for comparison and the AVPD is marked by the double-headed arrows

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BMC Cardiovascular Disorders

ISSN: 1471-2261

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