Ejection Fraction Calculator
Calculate left ventricular ejection fraction (LVEF) from end-diastolic and end-systolic volumes.
How to Use
- Enter end-diastolic volume (EDV) in mL.
- Enter end-systolic volume (ESV) in mL.
- Click Calculate to see ejection fraction and interpretation.
Anwendungsfälle
- •Echocardiography reporting.
- •Heart failure classification.
- •Cardiac device therapy eligibility (ICD/CRT).
Formel
EF (%) = ((EDV − ESV) / EDV) × 100. Stroke Volume (SV) = EDV − ESV.
Häufig gestellte Fragen
What is a normal ejection fraction?
Normal LVEF is ≥55%. Mildly reduced: 40–54%. Moderately reduced: 30–39%. Severely reduced: <30%.
What causes reduced ejection fraction?
Reduced EF can result from cardiomyopathy, myocardial infarction, valvular disease, or chronic volume overload.
Disclaimer
For educational purposes only. Does not replace professional medical evaluation.