Language mapping using electrocorticography versus stereoelectroencephalography: A case series

James J. Young, Kelly Coulehan, Madeline C. Fields, Ji Yeoun Yoo, Lara V. Marcuse, Nathalie Jette, Fedor Panov, Saadi Ghatan, Heidi A. Bender

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


Direct electrical stimulation (DES) is sometimes used in epilepsy surgery to identify areas that may result in language deficits if resected. Extraoperative language mapping is usually performed using electrocorticography (ECOG) — grids and strip electrodes; however, given the better safety profile of stereoelectroencephalogaphy (SEEG), it would be desirable to determine if mapping using SEEG is also effective. We report a case series of fifteen patients that underwent language mapping with either ECOG (5), SEEG (9), or both (1). Six patients in the SEEG group underwent resection or ablation with only mapping via SEEG. No patients in the SEEG group that underwent resective or ablative surgery experienced persistent language deficits. These results suggest that language mapping with SEEG may be considered as a clinically useful alternative to language mapping with ECOG.

Original languageEnglish
Pages (from-to)148-151
Number of pages4
JournalEpilepsy and Behavior
StatePublished - Jul 2018


  • Case series
  • Direct electrical stimulation
  • Electrocorticography
  • Language mapping
  • Stereoelectroencephalogaphy


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