Application of particle swarm optimization in epileptic spike EEG source localization
Artikel i vetenskaplig tidskrift, 2013

Surgical therapy has become an important therapeutic alternative for patients with medically intractable epilepsy. Correct and anatomically precise localization of an epileptic focus is essential to decide if resection of brain tissue is possible. The inverse problem in EEG-based source localization is to determine the location of the brain sources that are responsible for the measured potentials at the scalp electrodes. We propose a new global optimization method based on particle swarm optimization (PSO) to solve the epileptic spike EEG source localization inverse problem. In a forward problem a modified subtraction method is proposed to reduce the computational time. The good accuracy and fast convergence are demonstrated for 2D and 3D cases with realistic head models. The results from the new method are promising for use in the pre-surgical clinic in the future

Particle swarm optimization

Source localization

Epilepsy

Electroencephalography

Finite element method

Författare

Yazdan Shirvany

Signaler och system, Signalbehandling och medicinsk teknik, Signalbehandling

Fredrik Edelvik

Fraunhofer-Chalmers centrum for industrimatematik - FCC

Stefan Jakobsson

Fraunhofer-Chalmers centrum for industrimatematik - FCC

Anders Hedström

Sahlgrenska Academy

Mikael Persson

Signaler och system, Signalbehandling och medicinsk teknik, Medicinska signaler och system

Applied Soft Computing Journal

1568-4946 (ISSN)

Vol. 13 2515-2525

Ämneskategorier

Medicinteknik

Styrkeområden

Livsvetenskaper och teknik

DOI

10.1016/j.asoc.2012.11.035