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Updated: Aug 23, 2026
Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy
Published on: September 20, 2024
Bilateral occipital lobe hyperperfusion demonstrated by single photon emission computed tomography during
Jorge C Kattah1, Meena Gujrati, Edward T Hui
1Department of Neurology, University of Illinois College of Medicine at Peoria, OSF Saint Francis Medical Center, 530 N.E. Glen Oak Ave., Peoria, IL 61637, USA. kattahj@uic.edu
Abstract:
An 81-year-old woman with chronic dementia developed lethargy, confusion, binocular blindness, and episodic left-beating nystagmus. Diffusion magnetic resonance imaging (MRI) revealed high signal in the right occipital region suggesting recent ischemia. A concurrent electroencephalogram (EEG) showed a right occipital seizure focus that spread to the opposite occipital lobe. A single photon emission computed tomography (SPECT) performed during the seizure epoch showed bilateral occipital lobe hyperperfusion. This is the second report to document SPECT bi-occipital hyperperfusion in seizure-related cortical blindness.
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