The signal-averaged ECG: time-domain analysis.
During the past decade, the high-resolution electrocardiogram as a non-invasive technique for the detection of ventricular late potentials has developed from an experimental method into a routinely applied non-invasive method for risk stratification of patients after myocardial infarction. Meanwhile, several approaches have been developed for the detection of ventricular late potentials including time-domain analysis, frequency-domain analysis and spectrotemporal mapping. Clinical applications are no longer limited to patients after myocardial infarction, but cover a wider spectrum of different cardiac diseases. This review focuses on some methodological aspects as well as on the results and current clinical applications of the analysis of the signal-averaged ECG in the time domain.
Breithardt
G
G
Hospital of the Westfälische Wilhelms-University, Department of Cardiology and Angiology, Münster, Germany.
Wichter
T
T
Fetsch
T
T
Seifert
T
T
Borggrefe
M
M
Shenasa
M
M
Reinhardt
L
L
D000200:Action Potentials; D001145:Arrhythmias, Cardiac / Q000503:physiopathology; D009202:Cardiomyopathies / Q000503:physiopathology; D004562:Electrocardiography / Q000379:methods*; D006321:Heart / Q000502:physiology*; D006801:Humans; D009203:Myocardial Infarction / Q000503:physiopathology; D015203:Reproducibility of Results; D012815:Signal Processing, Computer-Assisted; D015912:Thrombolytic Therapy; D016277:Ventricular Function, Left