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

摘要

A 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 261, 262,... 26N. 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.