Velocity-time integral.left ventricular outflow tract/velocity-time integral.aortic valve:LenRto:Pt:Heart:Qn:US.doppler
velocity-time integral.left ventricular outflow tract/velocity-time integral.aortic valve:lenrto:pt:heart:qn:us.doppler
Heart Left ventricular outflow tract/Aortic valve VTI by US.doppler
heart left ventricular outflow tract/aortic valve vti by us.doppler