LV Systolic Function

BSE normal reference values

Ejection fraction categories

BSE categories for LV ejection fraction (biplane Simpson's)

Normal ≥55%; borderline low 50–54%; impaired 36–49%; severely impaired ≤35% (same cut-offs for males and females).

LV ejection fraction
CategoryLVEF (%)
Normal≥55
Borderline low50–54
Impaired36–49
Severely impaired≤35

TextbookHarkness et al. Normal reference intervals for cardiac dimensions and function. Echo Res Pract 2020.