LV ejection fraction — Simpson's biplane

Ejection fraction and stroke volume from biplane Simpson's end-diastolic and end-systolic volumes.

Shared values — enter once, reused everywhere

Height

Weight

Heart rate

bpm

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End-diastolic volume

End-systolic volume

EF = 58%

SV 70 mL · normal range

Worked steps

Stroke volume
SV = EDV − ESV = 120 − 50 = 70 mL
Ejection fraction
EF = SV ÷ EDV = 70 ÷ 120 = 58%

Reference: BSE/ASE chamber quantification. EF bands (≥55 normal; ~45–54 mild; 36–44 moderate; ≤35 severe) require verification against the current BSE document at review.

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