RT Journal Article
SR Electronic
T1 Influence of measurement inaccuracies on determination of left ventricular mass by M mode echocardiography.
JF Heart
JO Heart
FD BMJ Publishing Group Ltd and British Cardiovascular Society
SP 312
OP 313
DO 10.1136/hrt.75.3.312
VO 75
IS 3
A1 StĂ¶llberger, C.
A1 HollĂ¤nder, I.
A1 Dimitrov, L.
A1 Slany, J.
YR 1996
UL http://heart.bmj.com/content/75/3/312.abstract
AB OBJECTIVE: To determine to what extent inaccuracies in measuring the end diastolic diameter of the left ventricle, the interventricular septum, and the posterior wall, by M mode echocardiography influence the left ventricular mass calculated by the Devereux's formula. DESIGN: Mathematical model. RESULTS: Relatively small measurement inaccuracies such as 5%, which are known to be inherent in the echocardiographic method, will result in "changes" of left ventricular mass in the range of 8% to 15%. This is equivalent to expected changes in left ventricular mass seen during treatment. CONCLUSIONS: The use of Devereux's formula to calculate left ventricular mass is limited by measurement inaccuracies in individual patients.