Seizure detection with automated EEG analysis: a validation study focusing on periodic patterns.

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Etat: Public
Version: Author's accepted manuscript
ID Serval
serval:BIB_AC12E1AFF29D
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Seizure detection with automated EEG analysis: a validation study focusing on periodic patterns.
Périodique
Clinical Neurophysiology
Auteur(s)
Sierra-Marcos A., Scheuer M.L., Rossetti A.O.
ISSN
1872-8952 (Electronic)
ISSN-L
1388-2457
Statut éditorial
Publié
Date de publication
2015
Peer-reviewed
Oui
Volume
126
Numéro
3
Pages
456-462
Langue
anglais
Notes
Publication types: Journal Article
Résumé
OBJECTIVE: To evaluate an automated seizure detection (ASD) algorithm in EEGs with periodic and other challenging patterns.
METHODS: Selected EEGs recorded in patients over 1year old were classified into four groups: A. Periodic lateralized epileptiform discharges (PLEDs) with intermixed electrical seizures. B. PLEDs without seizures. C. Electrical seizures and no PLEDs. D. No PLEDs or seizures. Recordings were analyzed by the Persyst P12 software, and compared to the raw EEG, interpreted by two experienced neurophysiologists; Positive percent agreement (PPA) and false-positive rates/hour (FPR) were calculated.
RESULTS: We assessed 98 recordings (Group A=21 patients; B=29, C=17, D=31). Total duration was 82.7h (median: 1h); containing 268 seizures. The software detected 204 (=76.1%) seizures; all ictal events were captured in 29/38 (76.3%) patients; in only in 3 (7.7%) no seizures were detected. Median PPA was 100% (range 0-100; interquartile range 50-100), and the median FPR 0/h (range 0-75.8; interquartile range 0-4.5); however, lower performances were seen in the groups containing periodic discharges.
CONCLUSION: This analysis provides data regarding the yield of the ASD in a particularly difficult subset of EEG recordings, showing that periodic discharges may bias the results.
SIGNIFICANCE: Ongoing refinements in this technique might enhance its utility and lead to a more extensive application.
Pubmed
Web of science
Open Access
Oui
Création de la notice
11/02/2015 8:55
Dernière modification de la notice
20/08/2019 16:16
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