Calculated Left Ventricular Ejection Fraction

**Semantic type:** Quantitative Concept

**Definition:** The percent or fraction of the left ventricular end diastolic volume ejected in systole, which is calculated as the left ventricular stroke volume divided by the left ventricular end diastolic volume.

**Synonyms:** - LVEF_C - Left Ventricular Ejection Fraction, Cal - Left Ventricular Ejection Fraction, Cal - Left Ventricular Ejection Fraction, Calculated - Left ventriculography EF