Seizure localization using EEG analytical signals.

Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology
Mark H MyersJames W Wheless

Abstract

Localization of epileptic seizures, usually characterized by abnormal hypersynchronous wave patterns from the cortex, remains elusive. We present a novel, robust method for automatic localization of seizures on the scalp from clinical electroencephalogram (EEG) data. Seizure patient EEG data was decomposed via the Hilbert Transform and processed through the following methodology: sorting the analytic amplitude (AA) in the time instance, locating the maximum amplitude within the vector of channels, cross-correlating amplitude values in the time index with the channel vector. The channel with highest AA value in time was located. Our approach provides an automated way to isolate the epi-genesis of seizure events with 93.3% precision and 100% sensitivity. The method differentiates seizure-related neural activity from other common EEG noise artifacts (e.g., blinks, myogenic noise). We evaluated performance characteristics of our source location methodology utilizing both phase and energy of EEG signals from patients who exhibited seizure events. Feasibility of the new algorithm is demonstrated and confirmed. The proposed method contributes to high-performance scalp localization for seizure events that is more straightforward and le...Continue Reading

Citations

Jun 8, 2021·Frontiers in Systems Neuroscience·Guangda LiuJing Cai

❮ Previous
Next ❯

Related Concepts

Related Feeds

ALS: Transposon de-silencing

Transposon silencing is a form of transcriptional gene silencing. These gene silencing mechanisms are impaired in Amyotrophic lateral sclerosis (ALS). Here are the latest discoveries pertaining to transposon silencing and this disease.

Related Papers

IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society
Mohammad Zavid Parvez, Manoranjan Paul
IEEE Journal of Biomedical and Health Informatics
Ashwani Kumar TiwariBijaya Ketan Panigrahi
Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Mohammad Zavid Parvez, Manoranjan Paul
The British Journal of Psychiatry : the Journal of Mental Science
P M MayurD K Subbakrishna
Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society
C K ChuaC M Lim
© 2021 Meta ULC. All rights reserved