Feasibility of an intracranial EEG-fMRI protocol at 3Â T: Risk assessment and image quality

► We studied the risk and image quality of a full intracranial EEG-fMRI protocol. ► Subdural grid, strip, and depth electrodes were tested in a GE 3 T scanner. ► No significant device movement, heating or induced currents were seen during fMRI. ► In contrast, high SAR scans (e.g., FSE) produced heating > 2.0 °C. ► An intracranial EEG-fMRI protocol in the reported conditions poses low risk.