METHOD AND SYSTEM TO FULLY AUTOMATICALLY MEASURE THE ST SEGMENT LEVEL OF ELECTROCARDIOGRAMS IN REAL TIME ECG MONITORING

摘要

12NA system for determining the Q and J points of an electrocardiogram (ECG)combines a WLT based Q J detection algorithm with signal quality assessment for lead selection. A Q J detector (24) receives a beat cycle waveform for the beat under consideration from each of a plurality (N) of ECG leads and assesses signal quality for each lead using signal quality assessor (SQA) components 26 26 ... 26. The leads with good signal qualities are employed for a multichannel waveform length transform (WLT) which yields a combined waveform length signal (CWLS). The Q and J points are then determined from the CWLS.