Generic single-channel detection of absence seizures

Eline B. Petersen, Jonas Duun-Henriksen, Andrea Mazzaretto, Troels W. Kjar, Carsten E. Thomsen, Helge B.D. Sorensen

    Publikation: Bidrag til bog/antologi/rapportKonferencebidragForskningpeer review

    Abstrakt

    A long-term EEG-monitoring system, which automatically marks seizure events, is useful for diagnosing and treating epilepsy. A generic method utilizing the low inter-and intra-patient variabilities in EEG-characteristics during absence seizures is proposed. This paper investigates if the spike-and-wave behaviour during absence seizures is so distinct that a single-channel implementation is possible. 18 channels of scalp electroencephalography (EEG), from 19 patients suffering from childhood absence epilepsy, are analysed individually. The characteristics of the seizures are captured using the energy content of wavelet transform subbands and classified using a support vector machine. To ease the evaluation of the method, we present a new graphical visualization of the performance based on the topographical distribution on the scalp. The presented seizure detection method shows that the best result is obtained for the derivation F7-FP1. Using this channel a sensitivity of 99.1 %, positive predictive value of 94.8 %, mean detection latency of 3.7 s, and false detection rate value of 0.5/h was obtained. The topographical visualization of the results clearly shows that the frontal, midline, and parietal channels outperform detection based on the channels in the occipital region.

    OriginalsprogEngelsk
    Titel33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011
    Sider4820-4823
    Antal sider4
    DOI
    StatusUdgivet - 26 dec. 2011
    Begivenhed33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011 - Boston, MA, USA
    Varighed: 30 aug. 20113 sep. 2011

    Publikationsserier

    NavnProceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
    ISSN (Trykt)1557-170X

    Konference

    Konference33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011
    Land/OmrådeUSA
    ByBoston, MA
    Periode30/08/113/09/11

    Fingeraftryk

    Udforsk hvilke forskningsemner 'Generic single-channel detection of absence seizures' indeholder.

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