Development of QRS detection method for real-time ambulatory cardiac monitor

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal

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Original languageEnglish
Pages (from-to)289-292
Journal / PublicationAnnual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) - Proceedings
Volume1
Publication statusPublished - 1997

Conference

TitleProceedings of the 1997 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
CityChicago, IL, USA
Period30 October - 2 November 1997

Abstract

The primary goal of this research is to develop an affordable real-time ambulatory electrocardiogram (ECG) monitor prototype. The system consists of an analogue signal conditioner, a micro-controller, external RAM and ROM, and a PCMCIA flash memory card and interfacing chip. Researches are carried out in the ECG data compression and real-time diagnosis. For the purpose of ECG analysis, a reliable QRS detection algorithm with as little computation as possible has to be developed. This paper reports our works in the development of QRS detection algorithms. They are derived and improved from the first derivative method as described in the paper by Friesen et al. Our results show that the maximum slope detection, with the QRS onset selected when two successive values of slope exceed the threshold, is the best method.