An Efficient R-R Interval Detection for ECG Monitoring System

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概要

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• The recording of electrocardiogram (ECG) signals for the purpose of finding arrhythmias takes 24 hours. Generally speaking, changes in R-R intervals are used to detect arrhythmias. Our purpose is to develop an algorithm which efficiently detects R-R intervals. This system uses the R-wave position to calculate R-R intervals and then detects any arrhythmias. The algorithm searches for only the short time duration estimated from the most recent R-wave position in order to detect the next R-wave efficiently. We call this duration a WINDOW. A WINDOW is decided according to a proposed search algorithm so that the next R-wave can be expected in the WINDOW. In a case in which an S-wave is enhanced for some reason such as the manner in which the electrodes are installed in the system, the S-wave positions are taken to calculate the peak intervals instead of the R-wave. However, baseline wander and noise contained in the ECG signal have a deterrent effect on the accuracy with which the R-wave or the S-wave position is determined. In order to improve detection, the ECG signal is preprocessed using a Band-Pass Filter (BPF) which is composed of simple Cascaded Integrator Comb (CIC) filters. The American Heart Association (AHA) database was used in the simulation with the proposed al-gorithm. Accurate detection of the R-wave position was achieved in 99% of cases and efficient extraction of R-R intervals was possible.

• 社団法人電子情報通信学会の論文
• 1999-10-25

著者

• Nakamura Shogo

  Faculty of Engineering, Tokyo Denki University

• HOSHINO Hiroshi

  Faculty of Education, Yamaguchi University

• Hoshino Hiroshi

  Faculty Of Science And Engineering Tokyo Denki University

• KOHAMA Takashi

  Faculty of Engineering, Tokyo Denki University

• Kohama Takashi

  Faculty Of Engineering Tokyo Denki University

• Nakamura Shogo

  Faculty Of Engineering Tokyo Denki University

• Nakamura Shogo

  Faculty Of Engineering Osaka University

• Hoshino Hiroshi

  Faculty Of Education Yamaguchi University

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