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BMJ Publishing Group, Journal of Neurology, Neurosurgery and Psychiatry, 5(79), p. 594-597, 2008

DOI: 10.1136/jnnp.2007.125401

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Combined EEG-fMRI and tractography to visualise propagation of epileptic activity

Journal article published in 2008 by K. Hamandi, Hwr W. R. Powell, H. Laufs, Mr R. Symms, Gj J. Barker ORCID, Gjm J. M. Parker, L. Lemieux, Js S. Duncan
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

In a patient with refractory temporal lobe epilepsy, EEG-fMRI showed activation in association with left anterior temporal interictal discharges, in the left temporal, parietal and occipital lobes. Dynamic causal modelling suggested propagation of neural activity from the temporal focus to the area of occipital activation. Tractography showed connections from the site of temporal lobe activation to the site of occipital activation. This demonstrates the principle of combining EEG-fMRI and tractography to delineate the pathways of propagation of epileptic activity.