A microcomputer system using a template matching algorithm with moving-window correlation is viable for real-time detection of QRS complexes.
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Supports feasibility of microcomputer-based QRS detection; leaves open prospective validation before any clinical adoption.
A microcomputer system which detects QRS complexes in real-time is presented. The system is unique in that it implements a template matching algorithm using moving-window correlation on a microcomputer. Incoming ECG data are continuously correlated with multiple previously stored templates. Normal or arrhythmic QRS complexes are detected whenever correlation with one of the templates exceeds a preset threshold. Use of moving-window correlation eliminates the problems often encountered when performing correlation based upon fiducial point alignment. Viability of the technique has been tested by processing recorded ECG data taken from six human patients.
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DOBBS et al. (1984) studied this question.
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