Teichholz LVEF & Fractional Shortening
Teichholz LVEF and fractional shortening from linear LV dimensions, with the sex-specific ASE normal cutoffs (Teichholz 1976; ASE 2015).
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- LV internal diameter, end-diastole
- 5.0 cm
- LV internal diameter, end-systole
- 3.5 cm
- Sex
- Male
Result: LVEF 57%; FS 30% — normal (male normal ≥ 52%).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Caveat
- Dimension-derived; biplane Simpson is preferred when wall motion is regional. LVEF normal ≥ 52% (men), ≥ 54% (women).
What you enter
- LV internal diameter, end-diastole (LVIDd)
- LV internal diameter, end-systole (LVIDs)
- Sex
How this is calculated
- Formula
- V = 7·D³/(2.4 + D); EDV uses LVIDd, ESV uses LVIDs; LVEF = (EDV − ESV)/EDV; FS = (LVIDd − LVIDs)/LVIDd.
Teichholz LE, Kreulen T, Herman MV, Gorlin R. Problems in echocardiographic volume determinations: echocardiographic-angiographic correlations in the presence or absence of asynergy. Am J Cardiol. 1976;37(1):7-11. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.