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Video 9-3: Recording of the LVOT in parasternal long-axis view.

From: Critical Care Ultrasonography, Second Edition

LVOT diameter/radius measurements for the calculation of stroke volume and cardiac output with pulsed-wave Doppler (PWD) are done at the attachment of the aortic cusps (see Figure 9-8). Note poor aortic cusps separation due to decreased LV systolic function (LVEF%). LVEF, left ventricular ejection fraction; LV, left ventricle; LVOT, left ventricular outflow tract.

12 secs
Author(s) Alexander B. Levitov, Paul H. Mayo, Louis Vastardis
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