Utility of the proximal jet width in the assessment of regurgitant and stenotic orifices--effect of low velocity filter and comparison to actual vena contracta width: an in vitro and numerical study.
DeGroff CG, Shandas R, Valdes-Cruz L. Utility of the proximal jet width in the assessment of regurgitant and stenotic orifices--effect of low velocity filter and comparison to actual vena contracta width: an in vitro and numerical study. Eur J Echocardiogr. 2000 Mar; 1(1):42-54.