Channel-consistent forewarning of epileptic events from scalp EEG.
Phase-space dissimilarity measures (PSDM) have been recently proposed to provide forewarning of impending epileptic events from scalp electroencephalographic (EEG) for eventual ambulatory settings. Despite high noise in scalp EEG, PSDM yield consistently superior performance over traditional nonlinear indicators, such as Kolmogorov entropy, Lyapunov exponents, and correlation dimension. However, blind application of PSDM may result in channel inconsistency, whereby multiple datasets from the same patient yield conflicting forewarning indications in the same channel. This paper presents a first attempt to solve this problem.
Hively
Lee M
LM
Oak Ridge National Laboratory, PO Box 2008, Bldg. 6011, MS-6415, Oak Ridge, TN 37831, USA. hivelylm@ornl.gov
Protopopescu
Vladimir A
VA
D000293:Adolescent; D000328:Adult; D016477:Artifacts; D002648:Child; D002675:Child, Preschool; D004569:Electroencephalography / Q000379:methods*; D004827:Epilepsy / Q000175:diagnosis; D005260:Female; D005583:Fourier Analysis; D006801:Humans; D008297:Male; D008875:Middle Aged; D008959:Models, Neurological; D018670:Monitoring, Ambulatory / Q000379:methods; D017711:Nonlinear Dynamics; D011786:Quality Control; D012016:Reference Values; D012189:Retrospective Studies; D012535:Scalp / Q000503:physiopathology; D012640:Seizures / Q000175:diagnosis*; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted; D013269:Stochastic Processes