Two Cases of Stroke with False Lateralization in EEG Mapping

J Korean Neurol Assoc > Volume 20(4); 2002 > Article

Journal of the Korean Neurological Association 2002;20(4): 418-421.

뇌파뇌지도에서 위편측성을 보이는 뇌졸중 2예

곽용태, 김선곤 함동석 방오영

용인효자병원 신경과,아주대학교 의과대학 신경과학교실

Two Cases of Stroke with False Lateralization in EEG Mapping

Yong Tae Kwak

Department of Neurology, Yongin Hyoja Geriatric Hospital and College of Medicine, Ajou University

Abstract

"In recent days quantitative electroencephalography (QEEG) has grown rapidly and QEEG techniques and EEG map-ping have shown localizing functional imaging. We report two cases of falsely lateralized EEG mapping in stroke patients. Both cases had right hemispheric stroke, but presented bilateral clinical symptoms. Contrary to structural imaging, EEG mapping displayed left hemispheric dysfunction and SPECT displayed bilateral perfusion Aegects. These findings suggest that false lateralization of EEG mapping in unilateral stroke patients may show bilateral cerebral dys-function not detected in conventional imaging technique. Key Words : Unilateral stroke, EEG mapping, SPECT, False lateralization"