This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.
Fractional Shortening (FS)
From LVEDD and LVESD – with Teichholz ejection fraction
Calculation aid for healthcare professionals: the calculator reproduces what the sources cited assign to the inputs. Clinical assessment and every treatment decision remain with the treating physician. Inputs and results are not stored.
Frequently asked questions
Fractional Shortening (FS): What does this calculator compute?
Calculates the shortening fraction of the left ventricle from end-diastolic and end-systolic diameter (FS = (LVEDD − LVESD)/LVEDD) and from it the ejection fraction by Teichholz; normal range FS 28–44 %.
Fractional Shortening (FS): Which sources is this calculator based on?
Lang RM, Badano LP, Mor-Avi V, et al.: Recommendations for cardiac chamber quantification by echocardiography in adults: an update from the ASE and EACVI (J Am Soc Echocardiogr 28:1–39) (2015); Lopez L, Saurers DL, Barker PCA, Cohen MS, Colan SD, et al. – American Society of Echocardiography: Guidelines for Performing a Comprehensive Pediatric Transthoracic Echocardiogram: Recommendations From the American Society of Echocardiography (J Am Soc Echocardiogr 37:119–170) (2024); Lopez L, Colan SD, Frommelt PC, et al. – Pediatric Measurements Writing Group, ASE: Recommendations for quantification methods during the performance of a pediatric echocardiogram (J Am Soc Echocardiogr 23:465–495) (2010)