Dumesnil et al developed a simple equation for estimating the left ventricular ejection fraction (LVEF). The authors are from the Quebec Heart Institute.
Parameters:
(1) left ventricular end-diastolic volume (using the method of Teichholz et al, based on the short axis inner diameter of the left ventricle in cm at end-diastole)
(2) left ventricular outflow tract diameter in cm
(3) left ventricular subvalvular velocity time integral (VTI1) in cm
