Preoperative mapping for patients with supplementary motor area epilepsy: Multimodality brain mapping

Fumitaka Yamane*, Yoshihiro Muragaki, Takashi Maruyama, Yoshikazu Okada, Hiroshi Iseki, Akio Ikeda, Ikuo Homma, Tomokatsu Hori

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


Surgical management and strategies for the supplementary motor area (SMA) epilepsy are described. The following is our preoperative evaluations. The steps include functional magnetic resonance imaging (fMRI), interictal dipole tracing (DT), subdural electrodes mapping, measurements of movement-related cortical potential (MRCP), and the use of the intraoperative open MRI under conscious craniotomy. Six patients with SMA epilepsy underwent surgery after the mapping procedures and are now seizure-free. Combinations of preoperative (fMRI, subdural electrodes mapping) and intraoperative mapping allow exact localization and identification of the critical functional areas. Early postoperative deficits in motor and speech function were profound but patients recovered rapidly. It is concluded that the step of mapping procedures plays an important role in the management of SMA epilepsy surgery.

Original languageEnglish
Pages (from-to)S16-S21
JournalPsychiatry and Clinical Neurosciences
Issue number3
Publication statusPublished - 2004 Jun
Externally publishedYes


  • Epilepsy surgery
  • Intraoperative MRI
  • Multimodality mapping
  • Supplementary motor area

ASJC Scopus subject areas

  • Neuroscience(all)
  • Neurology
  • Clinical Neurology
  • Psychiatry and Mental health


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