Clinical ResearchCardiac ImagingCardiac Iodine-123 Metaiodobenzylguanidine Imaging Predicts Sudden Cardiac Death Independently of Left Ventricular Ejection Fraction in Patients With Chronic Heart Failure and Left Ventricular Systolic Dysfunction: Results From a Comparative Study With Signal-Averaged Electrocardiogram, Heart Rate Variability, and QT Dispersion
Cardiac Imaging
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Key Words
cardiac I-123 metaiodobenzylguanidine imaging
chronic heart failure
sudden cardiac death
Abbreviations and Acronyms
AUC
area under the curve
CHF
chronic heart failure
ECG
electrocardiography/electrocardiogram
fQRSd
the duration of filtered QRS complex
H/M
heart-to-mediastinum ratio
HRV
heart rate variability
LAS40
the duration of low-amplitude signals <40 μV in the terminal portion of filtered QRS complex
LVEF
left ventricular ejection fraction
MIBG
metaiodobenzylguanidine
NN
normal-to-normal
NYHA
New York Heart Association
QTc
corrected QT interval
RMS40
the root mean square voltage for the last 40 ms of filtered QRS complex
ROI
region-of-interest
SAECG
signal-averaged electrocardiogram
SCD
sudden cardiac death
WR
washout rate
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Copyright © 2009 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.