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Topographic EEG mapping in cerebrovascular disease

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Summary

Topographic EEG based on the power spectral data were correlated with cortical CBF and CMRO2 which were provided by positron emission tomography (PET) in patients with cerebral infarction. Delta and theta activities correlated negatively with CBF and CMRO2 whereas alpha activity correlated positively. For delta activity, both absolute (AP) and relative power (RP) showed significant correlation with CBF and CMRO2. For alpha activity, RP showed closer correlation with CBF and CMRO2 than did AP. The z-scores for these power data also showed significant correlation with the PET data although the degree of correlations did not improved even with the z-score. Topographic EEG images including AP, RP and their z-score maps well corresponded with the PET images: z-score maps were considered to be useful tool in topographical extraction of the features of the EEG power data.

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  1. Department of Neurology, Research Institute for Brain and Blood Vessels, 6-10 Senshu-Kubota-Machi, 010, Akita, Japan

    Ken Nagata

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Nagata, K. Topographic EEG mapping in cerebrovascular disease. Brain Topogr 2, 119–128 (1989). https://doi.org/10.1007/BF01128849

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