Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Preliminary Study on the Detection of Late Potentials using High-Resolution Electrocardiography

HRECG에 의한 Late Potential의 검출에 관한 예비 연구

  • Woo, Eung-Je (Department of Biomedical Engineering, College of Medicine, Kon Kuk University) ;
  • Park, Seung-Hun (Department of Biomedical Engineering, College of Medicine, Kon Kuk University)
  • 우응제 (건국대학교 의과대학 의학공학과) ;
  • 박승훈 (건국대학교 의과대학 의학공학과)
  • Published : 1993.05.14
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Abstract

We have done a preliminary study on the detection of ventricular late potentials using high-resolution electrocardiography. We designed a battery powered low-noise ECG amplifier. We used the XYZ lead system and the amplifier provides 3 channels of X, Y, and Z signals with a conventional gain and another 3 channels of the amplitude-limited X, Y, and Z signals with high-gain. 12-bit data acquisition system interfaces the amplifiers to a personal computer for further signal analysis. Beat alignment algorithm was implemented on the low-gain signals to synchronize the signal averaging of the high-gain amplitude-limited signals. We suggest the use of the weighted vector sum of X', Y', and Z' signals based on the SNR of each channel. We speculate that this new method will increase the accuracy of the LP detector at the expense of more complicated hardware.

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