Detecting Flutter Waves in the Electrocardiogram Using Generalized Likelihood Ratio Test
Résumé
Accurate detection of f waves during atrial flutter is difficult. However, f waves contain information on the pathology and are useful for non-invasive diagnosis. The setup and difficulties of f wave detection lends itself to the use of statistical signal detection techniques. Real-life constraints can be modeled in the signal observation using several parameters in order to produce signal detectors with good performance. Several detectors were developed and tested using real 12-lead ECG recordings with manually annotated f wave markers available. At the end, a simple detector is obtained with relatively good detection performance (AUC = 0.89, (Se, Sp) = (0.87, 0.76)) and a threshold is available for use in automatic detection of f waves.
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