Intraoperative ECoG During MRI-Guided Laser-Interstitial Thermal Therapy for Intractable Epilepsy.

MRI-guided laser-interstitial thermal therapy is a new modality for epilepsy surgery. In patients with intractable localization-related seizures, it has been used to ablate epileptogenic lesions with less morbidity than conventional craniotomies, and with potentially similar rates of seizure freedom. It is gaining favor in the treatment of mesial temporal sclerosis, in which the circumscribed epileptic focus is amenable to a stereotactic approach.