Blood velocity-time integral.systole:Len:Pt:Heart.ventricle.left.outflow tract:Qn:US.doppler
blood velocity-time integral.systole:len:pt:heart.ventricle.left.outflow tract:qn:us.doppler
Left ventricular outflow tract Velocity-time integral during systole by US.doppler
left ventricular outflow tract velocity-time integral during systole by us.doppler