Reproducibility of echocardiographic estimates of the area of stenosed aortic valves using the continuity equation.

Abstract

Interobserver variability in echocardiographic estimates of the area of stenosed aortic valves was assessed in 30 consecutive patients. Using the continuity equation, two independent observers calculated the area of stenosis from separate recordings of the diameter of the aortic orifice and the velocity time integral in the left ventricular outflow tract… (More)

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