Figure 1

Box-plots showing the relative difference (%) between the left ventricular stroke volume and the flow measurement performed in the different locations [(left ventricular stroke volume - forward flow) / left ventricular stroke volume] x 100. Notably, there was a mild difference between the left ventricular stroke volume and forward flow in the left ventricular outflow tract and the aortic valve orifice, which did not differ between normal BAV patients and controls. Conversely, in the ascending aorta there was a slight underestimation in forward flow among controls, which was much more pronounced and significant in BAV patients, especially if the systolic component only of the forward flow was considered. LVOT, left ventricular outflow tract; AV, aortic valve; AAo, ascending aorta.