Functional Magnetic Resonance Imaging in Partial Epilepsy

G. L. Morris, W. M. Mueller, F. Z. Yetkin, V. M. Haughton, T. A. Hammeke, S. Swanson, S. M. Rao, A. Jesmanowicz, L. D. Estkowski, P. A. Bandettini, E. C. Wong, J. S. Hyde

Research output: Contribution to journalArticlepeer-review

59 Scopus citations


Summary: Functional magnetic resonance imaging (FMRI) detects signal changes in brain that accompany regional changes in neuronal activity. In normal human brain, FMRI shows changes in signal in the postcentral gyrus or superior temporal gyrus that correlate with voluntary motor activity or language processing, respectively. The model used to explain the changes in signal linked temporally with cerebral activity is a reduction in cerebral capillary deoxyhemoglobin concentration due to the increased blood flow that accompanies neuronal activity in the cerebrum. FMRI has been used in normal subjects but not extensively in patients. To determine the feasibility of using FMRI to map cerebral functions in patients with partial epilepsy syndromes, we performed a pilot study, using FMRI to identify signal changes in motor and language areas in response to tasks that activate those areas. Signal changes in epilepsy patients approximated those observed in volunteers. We conclude that FMRI can be developed as a method for functional cerebral mapping in partial epilepsies.

Original languageEnglish (US)
Pages (from-to)1194-1198
Number of pages5
Issue number6
StatePublished - Nov 1994


  • Deoxyhemoglobin
  • Epilepsy surgery
  • Functional magnetic resonance imaging
  • Functional mapping
  • Neuronal activity
  • Partial epilepsy
  • Regional cerebral blood flow

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology


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