Characterizing vortex ring behavior during ventricular filling with Doppler echocardiography: an in vitro study.
Cooke J, Hertzberg J, Boardman M, Shandas R. Characterizing vortex ring behavior during ventricular filling with Doppler echocardiography: an in vitro study. Ann Biomed Eng. 2004 Feb; 32(2):245-56.