Epileptic Spikes: Magnetoencephalography versus Simultaneous Electrocorticography
نویسندگان
چکیده
منابع مشابه
Detection of epileptic spikes by magnetoencephalography and electroencephalography after sleep deprivation
INTRODUCTION In diagnosis of epilepsies electrophysiological findings play a key role. While spontaneous electroencephalography (EEG) and EEG with sleep deprivation (EEGsd) are widely evaluated and used, application of magnetoencephalography (MEG) in this field is primarily limited to presurgical assessment of focal epilepsies. METHODS In this study we retrospectively compared MEG (M/EEG) and...
متن کاملWavelet analysis of epileptic spikes.
Interictal spikes and sharp waves in human EEG are characteristic signatures of epilepsy. These potentials originate as a result of synchronous pathological discharge of many neurons. The reliable detection of such potentials has been the long standing problem in EEG analysis, especially after long-term monitoring became common in investigation of epileptic patients. The traditional definition ...
متن کاملSimultaneous EEG-CBV (Electroencephalography – Cerebral Blood Volume) measurements of epileptic spikes
Background: Simultaneous EEG and VASO (Vascular Space Occupancy) imaging can be used to characterize CBV (cerebral blood volume) changes during interictal epileptic discharges (IED’s). However, the VASO sequence causes more RF pulse artifacts in the EEG than spin-echo or gradient-echo functional MRI (fMRI) sequences, because the global inversion pulses in the VASO sequence require higher RF pow...
متن کاملElectrocorticography in the management of surgically treated epileptic patients.
OBJECTIVE To report our experience on 8 patients with mean age of onset of seizures of 8 years, who had intra-operative electrocorticography monitoring during the surgical treatment of their medically intractable partial epilepsy. METHODS Post-resection electrocorticography grades were according to Jay et al and seizure outcome was a according to Kobayashi et al grades. RESULTS Five patient...
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Over 30% epileptic patients are refractory to medication, who are amenable to neurosurgical treatment. Non-invasive brain imaging technologies including video-electroencephalogram (EEG), magnetic resonance imaging (MRI), and magnetoencephalography (MEG) are widely used in presurgical assessment of epileptic patients. This review mainly discussed the current development of clinical MEG imaging a...
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ژورنال
عنوان ژورنال: Epilepsia
سال: 2002
ISSN: 0013-9580,1528-1167
DOI: 10.1046/j.1528-1157.2002.10702.x