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Signal analysis techniques for localising spikes and slow waves based on MEG/EE...
J.C. de Munck; A. de Jongh; D. van ‘t Ent; P. Ossenblok; J.C. Baayen; M. Pulligheddu; C.J. Stam; F.H. Lopes da SilvaTwo abnormalities in the spontaneous magnetic brain activity of patients with tumours and epilepsy are investigated: slow waves and inter-ictal spikes. Signal analysis techniques are demonstrated to localise their underlying generators, project these sources onto the patient’s MR scan and to compare their locations. The clinical importance of this study is to get insight into...
The use of the EIT principles for the “in vivo” measurement of the electric res...
S Gonçalves; J.C. de Munck; J.P.A. Verbunt; F. BijmaThe goal of this work is to perform the “in vivo“ measurement of equivalent electric resistivities of skull(ρskull) and brain (ρbrain) using an Electric ImpedanceTomography (EIT) based method and realistic models forthe head. Results demonstrate that ρskull/ρbrain is more likely to be within 20 and 50 rather than equal to the commonly accepted value of 80. The variatio...
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