Parameters of Aortic Regurgitation on Echocardiography
Aortic Regurgitation Bolded qualitative and semiquantitative signs are considered specific for their AR grade. Color Doppler usually performed at a Nyquist limit of 50-70 cm/sec. (1) Unless there are other reasons for LV dilation. (2) Specific in normal LV function, in absence of causes of volume overload. Exception: acute AR, in which chambers have not had time to dilate. (3) PHT is shortened with increasing LV dias