[Functional magnetic resonance].
Functional magnetic resonance imaging (fmri) is a non-invasive functional brain mapping technique ased on blood oxygenated level dependent signal (BOLD). It is obtained during T2* weighted imaging MRI studies. fmri aids in the localization of language and motor function for patients candidates for epilepsy surgery, and has up to a 90% concordance with WADA test. Even though synchronous recording of fmri and EEG is technically challenging, it shows a discordant pattern of activation when compared with EEG or electrocorticography. This finding could be due to complex epileptic networks, and overall this study technique has the potential to contribute to further research into epileptic network and epilepsy physiopathology.
Sell
Erick
E
Hospital for Sick Children, Toronto, Canada. erick.sell@yahoo.com
D001931:Brain Mapping; D004569:Electroencephalography; D004827:Epilepsy / Q000503:physiopathology* / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D010100:Oxygen / Q000097:blood*
D010100:Oxygen