In vivo studies of instantaneous blood flow across mitral ball-valve prostheses: effects of cardiac output and heart rate on transvalvular energy loss.
D000818:Animals; D001783:Blood Flow Velocity; D002302:Cardiac Output; D002417:Cattle; D004562:Electrocardiography; D006339:Heart Rate; D006350:Heart Valve Prosthesis; D008722:Methods; D008943:Mitral Valve