title: Seizure onset detection based on one sEMG channel.
abstract: We present a new method to detect seizure onsets of tonic-clonic epileptic seizures based on surface electromyography (sEMG) data. The proposed method is generic and based on a single channel making it ideal for a small detection or monitoring device. The sEMG signal is high-pass filtered with a Butterworth filter with a cut-off frequency of 150 Hz. The number of zero-crossings with a hysteresis of ± 50 μV is the only feature extracted. The number of counts in a window of 1 second and the number of windows to make a detection is tested with a leave-one-out method. On 6 patients the method performs with a sensitivity of 100%, a median latency of 7.6 seconds and a median false detection rate of 0.04/h.
authors.affiliation: DTU Electrical Engineering, Ørsteds Plads, building 349, DK-2800 Kgs Lyngby. isaconradsen@gmail.com
authors.forename: Isa
authors.initials: I
authors.lastname: Conradsen
authors.forename: Sándor
authors.initials: S
authors.lastname: Beniczky
authors.forename: Karsten
authors.initials: K
authors.lastname: Hoppe
authors.forename: Peter
authors.initials: P
authors.lastname: Wolf
authors.forename: Thomas
authors.initials: T
authors.lastname: Sams
authors.forename: Helge B D
authors.initials: HB
authors.lastname: Sorensen
mesh_terms: D000328:Adult; D004576:Electromyography / Q000379:methods*; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D012640:Seizures / Q000175:diagnosis*; D012815:Signal Processing, Computer-Assisted; D013499:Surface Properties; D013997:Time Factors; D055815:Young Adult