EchocardiographyExercise StressMiscExercise Stress
Duke Treadmill ScoreMaximum Predicted Heart Rate (DOB)Mets & VO2 (Treadmill)
Maximum Predicted Heart Rate (Age)Max. Predicted Heart Rate AchievedRate Pressure Product
Prev

LV Ejection Fraction (Dumesnil Method)

Calculation


LVEDD mm
LVOT mm
VTI1 cm


SV mL
LVEDV mL
LVEF %
Calculate

Clear
Top

Information

The method of calculating left ventricular ejection fraction (LV EF) consists of dividing Doppler derived stroke volume (SV) in the LV outflow track (LVOT) by LV end-diastolic volume (LVEDV) calculated by Teichholz’s formula.

SV
= π * (
LVOT
2
)2 * VTI1
LVEDV
=
(7 * LVEDD3)
(2.4 + LVEDD)
LVEF
=
SV
LVEDV
LVEDD LV end-diastolic dimension
LVOT Left ventricular outflow tract diameter
VTI1 LVOT subvalvular velocity time integral
SV Stroke volume
LVEDV LV end-diastolic volume
LVEF LV ejection fraction [%]


References

Dumesnil et al. A new, simple and accurate method for determining ejection fraction by Doppler echocardiography. Can J Cardiol 1995; 11(11): 1007-14.
Information
Illustrations



Top

This calculator has been viewed 109254 times.

Powered by USquareSoft

Author: Dr. Chi-Ming Chow Developer: Edward Brawer Illustrator: Ellen Ho
Copyright © 2005-2011 CardioMath, All Rights Reserved.


Disclaimer: The calculators provided are not meant to be a substitute for professional advise and are not to be used for medical diagnosis. All calculations must be confirmed before clinical use or diagnostic purposes by qualified medical professionals. The authors make no claims of the accuracy of the information contained herein. The authors make no claims whatsoever, expressed or implied, about the authenticity, accuracy, reliability, completeness or timeliness of the material, software, text, graphics and links given. In no event shall the authors, its suppliers, affiliates or any third parties be liable in any manner whatsoever for any damage arising upon use of any information provided.