Clear Search sequence regions


  • algorithms (2)
  • brain (1)
  • eeg (16)
  • epileptiform (2)
  • humans (1)
  • patients (1)
  • phase (6)
  • research (1)
  • segments (1)
  • signal (1)
  • Sizes of these terms reflect their relevance to your search.

    The goal of the project is to determine characteristics of academic neurophysiologist EEG interpreters (EEGers), which predict good interrater agreement (IRA) and to determine the number of EEGers needed to develop an ideal standardized testing and training data set for epileptiform transient (ET) detection algorithms. A three-phase scoring method was used. In phase 1, 19 EEGers marked the location of ETs in two hundred 30-second segments of EEG from 200 different patients. In phase 2, EEG events marked by at least 2 EEGers were annotated by 18 EEGers on a 5-point scale to indicate whether they were ETs. In phase 3, a third opinion was obtained from EEGers on any inconsistencies between phase 1 and phase 2 scoring. The IRA for the 18 EEGers was only fair. A select group of the EEGers had good IRA and the other EEGers had low IRA. Board certification by the American Board of Clinical Neurophysiology was associated with better IRA performance but other board certifications, years of fellowship training, and years of practice were not. As the number of EEGers used for scoring is increased, the amount of change in the consensus opinion decreases steadily and is quite low as the group size approaches 10. The IRA among EEGers varies considerably. The EEGers must be tested before use as scorers for ET annotation research projects. The American Board of Clinical Neurophysiology certification is associated with improved performance. The optimal size for a group of experts scoring ETs in EEG is probably in the 6 to 10 range.

    Citation

    Jonathan J Halford, Amir Arain, Giridhar P Kalamangalam, Suzette M LaRoche, Bonilha Leonardo, Maysaa Basha, Nabil J Azar, Ekrem Kutluay, Gabriel U Martz, Wolf J Bethany, Chad G Waters, Brian C Dean. Characteristics of EEG Interpreters Associated With Higher Interrater Agreement. Journal of clinical neurophysiology : official publication of the American Electroencephalographic Society. 2017 Mar;34(2):168-173

    Expand section icon Mesh Tags


    PMID: 27662336

    View Full Text