Fig. 4
a Regurgitant volume as a function of regurgitant severity; b left ventricular stroke work; and c stroke volume and ejection fraction as a function of regurgitant volumes under aortic and mitral regurgitation conditions; d left ventricular stroke volume as a function of left ventricular stroke work. AR aortic regurgitation; MR mitral regurgitation; SV stroke volume; EF ejection fraction; RV regurgitant volume; RF regurgitant fraction