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Updated: May 6, 2026

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Imaging the seizure during surgery with a hyperspectral camera.

Herke Jan Noordmans1, Cyrille Ferrier, Rowland de Roode

  • 1Department of Medical Technology & Clinical Physics, University Medical Center Utrecht, Utrecht, The Netherlands.

Epilepsia
|November 9, 2013
PubMed
Summary

Hyperspectral imaging detected increased blood volume in the sensory cortex during epilepsy seizures. This non-invasive technique helped pinpoint the seizure-onset zone, leading to successful surgical intervention.

Keywords:
Epilepsy surgeryHyperspectral imagingIctal hyperperfusion

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Area of Science:

  • Neuroscience
  • Medical Imaging
  • Epilepsy Research

Background:

  • Epilepsy surgery requires precise localization of the seizure-onset zone.
  • Intracranial electroencephalography (EEG) is a common method for seizure localization.
  • Non-invasive imaging techniques can potentially improve surgical planning.

Observation:

  • A patient with drug-resistant epilepsy and left-hand sensorimotor seizures was monitored during surgery.
  • A hyperspectral camera was used to capture real-time cortical blood volume changes.
  • Seizures occurred every 10 minutes, involving the left hand.

Findings:

  • Focal increases in oxygenated and total blood volume were observed in the sensory cortex.
  • These blood volume changes correlated precisely with the seizure-onset zone identified by EEG.
  • The observed changes likely indicate highly localized seizure activity.

Implications:

  • Hyperspectral imaging offers a promising non-invasive method for identifying seizure-onset zones.
  • This technology could enhance the accuracy and safety of epilepsy surgery.
  • Further research may validate hyperspectral imaging as a standard tool in neurosurgery.