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128-Channel EEG Source Imaging in Epilepsy: Clinical Yield and Localization Precision

Michel, Christoph M ; Lantz, Göran ; Spinelli, Laurent ; de Peralta, Rolando Grave ; Landis, Theodor ; Seeck, Margitta

Journal of clinical neurophysiology, 2004-03, Vol.21 (2), p.71-83 [Periódico revisado por pares]

United States: Copyright American Clinical Neurophysiology Society

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Título:
128-Channel EEG Source Imaging in Epilepsy: Clinical Yield and Localization Precision
Autor: Michel, Christoph M ; Lantz, Göran ; Spinelli, Laurent ; de Peralta, Rolando Grave ; Landis, Theodor ; Seeck, Margitta
Assuntos: Adolescent ; Adult ; Algorithms ; Brain Mapping - instrumentation ; Brain Mapping - methods ; Child ; Child, Preschool ; Diagnosis, Computer-Assisted - methods ; Electroencephalography - instrumentation ; Electroencephalography - methods ; Epilepsy - diagnosis ; Epilepsy - surgery ; Female ; Humans ; Magnetic Resonance Imaging - methods ; Male ; Middle Aged ; Reproducibility of Results ; Sensitivity and Specificity ; Treatment Outcome
É parte de: Journal of clinical neurophysiology, 2004-03, Vol.21 (2), p.71-83
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Descrição: The authors evaluated the feasibility, clinical yield, and localization precision of high-resolution EEG source imaging of interictal epileptic activity. A consecutive series of 44 patients with intractable epilepsy of various causes, who underwent a comprehensive presurgical epilepsy evaluation, were subjected to a 128-channel EEG recording. A standardized source imaging procedure constrained to the individual gray matter was applied to the averaged spikes of each patient. In 32 patients, the presurgical workup identified a focal epileptogenic area. The 128-channel EEG source imaging correctly localized this area in 30 of these patients (93.7%). Imprecise localization was explained by simplifications of the recordings and analysis procedure, which was accepted for the benefit of speed and standardization. In a subgroup of 24 patients who underwent operations, the sublobar precision of the 128-channel EEG source imaging was evaluated by calculating the distance of the source maximum to the resected area. This analysis revealed zero distance in 19 cases (79%). The authors conclude that high-resolution interictal EEG source imaging is a valuable noninvasive functional neuroimaging technique. The speed, ease, flexibility, and low cost of this technique warrant its use in clinical practice.
Editor: United States: Copyright American Clinical Neurophysiology Society
Idioma: Inglês

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128-Channel EEG Source Imaging in Epilepsy: Clinical Yield and Localization Precision

Michel, Christoph M ; Lantz, Göran ; Spinelli, Laurent ; de Peralta, Rolando Grave ; Landis, Theodor ; Seeck, Margitta

United States: Copyright American Clinical Neurophysiology Society

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