Clinical ResearchNormal QRS Duration and ResynchronizationMechanical Dyssynchrony Assessed by Tissue Doppler Imaging Is a Powerful Predictor of Mortality in Congestive Heart Failure With Normal QRS Duration
Normal QRS Duration and Resynchronization
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Abbreviations and Acronyms
ACE
angiotensin-converting enzyme
CHF
congestive heart failure
CRT
cardiac resynchronization therapy
ECG
electrocardiography/electrocardiogram
EF
ejection fraction
LV
left ventricle/ventricular
ROC
receiver-operating characteristic
TDI
tissue Doppler imaging
Te
time to early peak diastolic velocity from R-wave on electrocardiogram
Ts
time to peak systolic point from R-wave on electrocardiogram
Ts-diff
maximal temporal difference of Ts
Ts-SD
standard deviation of Ts
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Copyright © 2005 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.