Automated Detection of Epileptic Seizures in the EEG

Abstract

A system has been developed to detect epileptic seizures in real-time during long-term EEG (LTEEG) monitoring, LTEEG is an important clinical service provided by the Neurology Department at Christchurch Hospital to investigate patients who have relatively infrequent but recurring seizures over extended periods. The detection algorithm looks for extended amplitude and frequency changes, calculated using basic signal-processing techniques, followed by a rule-based stage which compares time-dependent features against dynamic thresholds for each channel, Spatial context is used to discriminate eye artifacts. The system was tested on EEG data from 5 patients containing 44 epileptic seizures, The sensitivity and selectivity of the algorithm were 88,7% and 92,6% respectively.

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Document Details

Document Type
Technical Report
Publication Date
Oct 25, 2001
Accession Number
ADA409776

Entities

People

  • Grant J. Carroll
  • Hansjerg Goelz
  • Maarten-jan Hoeve
  • Richard D. Jones

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Abstracts
  • Algorithms
  • Amplitude
  • Detection
  • Detectors
  • Dynamic Range
  • Electrical Engineering
  • Engineering
  • Epilepsy
  • Frequency
  • Frequency Bands
  • Health Services
  • Medical Personnel
  • New Zealand
  • Power Spectra
  • Sensitivity
  • Signal Processing

Fields of Study

  • Medicine

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Computer Vision.
  • Radar Systems Engineering.