Question: what is ejection fraction formula?
Answer: Ejection Fraction (EF) is the fraction of blood ejected by the ventricle relative to its end-diastolic volume. Therefore, EF is calculated from: EF = (SV / EDV) ⋅ 100 where SV = stroke volume, EDV = end-diastolic volume. Ejection fraction is most commonly measured using echocardiography.