Adaptive Fourier modeling of evoked potentials: Application to cerebral focal ischemia

Peter Poon, Nitish Thakor

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A method for estimating evoked potentials (EPs) in a critical care environment where unpredictable transients may occur is presented. Timely detection of these transients may prevent neurological injury. A dynamic Fourier-series model for EPs and an adaptive estimator based on the least mean square and exponentially weighted least squares algorithms were developed. Through computer simulations, it is shown that this technique is effective in removing high electroencephalogram noise and in tracking rapid transients. Cerebral focal ischemia experiments confirmed the effectiveness of this technique. Dispersion of EP spectral power was observed, which suggests the importance of frequency content in diagnosis.

Original languageEnglish (US)
Title of host publicationBiomedical Engineering Perspectives
Subtitle of host publicationHealth Care Technologies for the 1990's and Beyond
PublisherPubl by IEEE
Pages885-886
Number of pages2
Editionpt 2
ISBN (Print)0879425598
StatePublished - Dec 1 1990
EventProceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Philadelphia, PA, USA
Duration: Nov 1 1990Nov 4 1990

Publication series

NameProceedings of the Annual Conference on Engineering in Medicine and Biology
Numberpt 2
ISSN (Print)0589-1019

Other

OtherProceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
CityPhiladelphia, PA, USA
Period11/1/9011/4/90

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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