Elysia Tools
Navigation
Health
Compute LVEF = (EDV − ESV) / EDV. Normal 50–70%; <40% HFrEF; >70% hyperdynamic. Derived from Lang JASE 2015, Ponikowski ESC 2016, StatPearls, LITFL, Braunwald. Not medical advice.
Execution
Fill in the form, run the tool, and review the result in one place.
Samples
Related
Ready for a run
Tool usage guide
The Left Ventricular Ejection Fraction Estimator calculates LVEF from end-diastolic volume (EDV) and end-systolic volume (ESV) using LVEF = (EDV − ESV) / EDV. It also reports stroke volume and an ejection-fraction category. This tool is for estimation and education, not medical advice.
Background
A student wants to verify how ventricular volumes produce a normal ejection fraction.
Problem
Calculate stroke volume and LVEF from EDV of 120 mL and ESV of 48 mL.
How to use
Enter 120 for EDV, 48 for ESV, and select 1 decimal place.
EDV: 120 mL; ESV: 48 mL; Decimal places: 1Outcome
Stroke volume is 72 mL and LVEF is 60.0%, categorized as a normal ejection fraction.
Background
A trainee is checking the calculation for a case with a larger end-diastolic volume and a high end-systolic volume.
Problem
Calculate LVEF from EDV of 180 mL and ESV of 126 mL.
How to use
Enter 180 for EDV, 126 for ESV, and select 1 decimal place.
EDV: 180 mL; ESV: 126 mL; Decimal places: 1Outcome
Enter EDV and ESV in milliliters. You can also set the number of decimal places.
LVEF = (EDV − ESV) / EDV. The result is also shown as a percentage.
Stroke volume is the difference between EDV and ESV: SV = EDV − ESV.
The tool identifies normal ejection fraction at 50–70%, reduced ejection fraction below 40%, and hyperdynamic ejection fraction above 70%.
No. LVEF depends on measurement and loading conditions, so the result should be interpreted by a qualified healthcare professional.
Stroke volume is 54 mL and LVEF is 30.0%, categorized as a reduced ejection fraction.