A computerized data analysis system for electrogastrogram.
A comprehensive computerized data analysis system for the electrogastrogram is presented in this paper. The electrogastrogram (EGG) is a cutaneous measurement of electrical activity of the stomach by positioning electrodes on the abdominal skin. Since the signal-to-noise ratio of the EGG is very low, visual analysis is impossible. The data analysis system presented in this paper contains a series of PC programs to perform: (a) data acquisition and real-time A/D conversion; (b) digital filter design and digital filtering; (c) adaptive cancellation of respiratory artifact; (d) smoothed power spectral analysis; (e) adaptive running spectral analysis; (f) two- or three-dimensional display of the EGG and analysis results. The basic principles of the system and sample results are presented.
Chen
J
J
University of Virginia Health Science Center, Charlottesville 22908.
D003626:Data Display; D001330:Electronic Data Processing; D004594:Electrophysiology / Q000379:methods; D005260:Female; D006801:Humans; D008991:Monitoring, Physiologic; D011381:Programming Languages; D012016:Reference Values; D012815:Signal Processing, Computer-Assisted; D012984:Software; D013270:Stomach / Q000502:physiology*