Early Seizure Detection Algorithm Based on Intracranial EEG and Random Forest Classification

Int J Neural Syst. 2015 Aug;25(5):1550023. doi: 10.1142/S0129065715500239. Epub 2015 Apr 26.

Abstract

The goal of this study is to provide a seizure detection algorithm that is relatively simple to implement on a microcontroller, so it can be used for an implantable closed loop stimulation device. We propose a set of 11 simple time domain and power bands features, computed from one intracranial EEG contact located in the seizure onset zone. The classification of the features is performed using a random forest classifier. Depending on the training datasets and the optimization preferences, the performance of the algorithm were: 93.84% mean sensitivity (100% median sensitivity), 3.03 s mean (1.75 s median) detection delays and 0.33/h mean (0.07/h median) false detections per hour.

Keywords: EEG features; Epilepsy; feature classification; intracranial EEG; seizure detection.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Algorithms*
  • Brain / physiopathology*
  • Brain / surgery
  • Early Diagnosis
  • Electrocorticography / methods*
  • False Positive Reactions
  • Female
  • Humans
  • Implantable Neurostimulators
  • Male
  • Middle Aged
  • Seizures / diagnosis*
  • Seizures / physiopathology*
  • Seizures / surgery
  • Sensitivity and Specificity
  • Signal Processing, Computer-Assisted
  • Time Factors
  • Young Adult