Aortic stenosis occurs ... of the aortic valve and V2 is the velocity of flow at the aortic valve. All of the above except A2 can be directly measured by 2D echocardiography (LV outflow tract ...

The stroke volume is equal to cross-sectional area (CSA) of the LVOT at the site of measurement times its velocity ... 18 indicative of severe aortic stenosis.Pk Grad=peak gradient; Mn Grad ...

The diagnosis of aortic stenosis is ... aortic valve and V2 is the velocity of flow at the aortic valve. All of the above, except A2, can be seen directly by 2D echocardiography (LV outflow ...

Aortic stenosis ... velocity of flow across the orifice. Using a modified Bernoulli equation (4V2) the proximal and distal pressures can be calculated giving an instantaneous peak to peak gradient ...