# LV Mass and LV Mass Index

#### Formulas

$LV Mass =$

$0.8(1.04((LVEDD + IVSD + PWd)^3 – LVEDD^3)) + 0.6$

$RWT = \frac{2PWd}{LVEDD}$

#### Definitions

 LVEDD Left ventricular end-diastolic dimension IVSd Interventricular septal thickness at end-diastole PWd Left ventricular outflow tract diameter RWT Relative wall thickness BSA Body surface area using the Mosteller formula

#### Reference

 1 Lang RM et al. Recommendations for cardiac chamber quantification by echocardiography in adults: an update from the American Society of Echocardiography and the European Association of Cardiovascular Imaging. J Am Soc Echocardiogr. 2015 Jan;28(1):1-39. Full text

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Developer & Illustrator: Sirikarn Napan, MD, FACC