The Impact of Simultaneous Intracranial Recordings on Scalp EEG: A Finite Element Analysis

In this study, Dr. George M Ibrahim and others examined the utility of simultaneous scalp and stereotactic intracranial electroencephalography (SSIEEG) in epilepsy patients. Although SSIEEG offers valuable insights into epilepsy and cognitive function, its routine use is uncommon. Challenges include interpreting postcraniotomy scalp EEG due to surgically implanted electrodes.

Rhythmlink MRI-safe and CT-compatible scalp electrodes were applied with collodion, using the international 10-20 system, with a minimum 10 mm distance from any SEEG bolt.

Simeon M Wong (1,2), Rohit Sharma (3), Ahmed Abushama (3), Ayako Ochi (3), Hiroshi Otsubo (3), George M Ibrahim (1,2,4,5).

1. Neurosciences and Mental Health, Hospital for Sick Children, Toronto, Canada
2. Institute of Biomedical Engineering, University of Toronto, Toronto, Canada
3. Department of Neurology, Hospital for Sick Children, Toronto, Canada
4. Division of Neurosurgery, Hospital for Sick Children, Toronto, Canada
5. Department of Surgery, University of Toronto, Toronto, Canada

Corresponding Author
Dr. George M Ibrahim
george.ibrahim@sickkids.ca

The Hospital for Sick Children
Division of Neurosurgery
555 University Avenue
Toronto Ontario M5G 1X8
Canada