Abstract #3886
Safety
in Simultaneous EEG-FMRI: Temperature Changes of the Electrodes in a Phantom
and a Volunteer Study
Linda
Kuusela1,2, Sampsa Turunen1,3, Outi Sipil1
1HUS
Helsinki Medical Imaging Center, Helsinki (HUS), Finland; 2Department
of Physics, Univeristy of Helsinki, Helsinki, Finland; 3Department
of Physics, University of Helsinki, Helsinki, Finland
An
EEG-fMRI protocol is being developed at the Helsinki Medical
Imaging Center
to aid in the pre-surgical evaluation of patients with epilepsy. The purpose
of this study was to study the heating of the electrodes with our protocol.
Phantom and volunteer studies were performed, by measuring the temperatures
of the EEG-electrodes in a 3T MRI scanner. A maximum temperature increase of
4.1 and 1.0 C was observed for a T2-TSE sequence in the phantom and the
volunteer study, respectively. The temperature increase was found to be
within safe limits to perform simultaneous EEG-fMRI patient studies with our
protocol.
