Pressure tracings made from the body of the left ventricle (LV) (A), the body and left ventricular outflow tract (LVOT ... in the calculation of either aortic valve area or aortic valve resistance.

In principle, the blood volume passing through a stenotic valve (aortic stenosis) is equal to the blood volume proximal to the stenosis or in the LVOT (Figure 4). The stroke volume is equal to ...

just below the leaflets of the aortic valve to the width (diameter) of the left ventricular outflow. Ideally, the ratio should be zero because no regurgitant jet should be present. A ratio of ...