Stereoencephalography, or Stereo EEG, allows for simultaneous exploration of electrical activity on the surface of the brain and deep within it – all while a patient is experiencing a seizure. This technique has several advantages:

  • Enables precise location of epileptic focus
  • No craniotomy is required; very thin recording electrodes are inserted via tiny openings in the skull so the procedure is better tolerated
  • Especially useful in cases where the epilepsy is difficult to localize
  • Allows for longer monitoring periods than conventional subdural electrodes – up to four weeks

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