MR Artifact Reduction in the Simultaneous Acquisition of EEG and fMRI of Epileptic Patients

Ladan Amini (1) , Reza Sameni (1) , Christian Jutten (1) , Hamid Soltanian-Zadeh (2) , Gholam Ali Hossein-Zadeh (3)

1 GIPSA-SIGMAPHY - GIPSA - Signal Images Physique
2 Radiology Image Analysis Lab - Henry Ford Health System
3 CIPCE - Control and Intelligent Processing Center of Excellence - University of Tehran

Integrating high spatial resolution of functional magnetic resonance imaging (fMRI) and high temporal resolution of electroencephalogram (EEG) is promising in simultaneous EEG and fMRI analysis, especially for epileptic patients. The EEG recorded inside an MR scanner is interfered with MR artifacts. In this article, we propose new artifact reduction approaches and compare them with the conventional artifact reduction methods. Our proposed approaches are based on generalized eigenvalue decomposition (GEVD) and median filtering. The proposed methods are applied on experimental simultaneous EEG and fMRI recordings of an epileptic patient. The results show significant improvement over conventional MR artifact reduction methods.

Domains: Signal and Image Processing; Signal and Image processing

Ladan Amini, Reza Sameni, Christian Jutten, Hamid Soltanian-Zadeh, Gholam Ali Hossein-Zadeh. MR Artifact Reduction in the Simultaneous Acquisition of EEG and fMRI of Epileptic Patients. EUSIPCO 2008 - 16th European Signal Processing Conference, Aug 2008, Lausanne, Switzerland. ⟨hal-00323479⟩