Dynamic Electrical Source Imaging (DESI) of Seizures and Interictal Epileptic Discharges Without Ensemble Averaging
نویسندگان
چکیده
منابع مشابه
ESI and fMRI of interictal and ictal epileptic discharges
A major challenge in planning and performing resective surgery in drug-resistant epilepsy is the accurate identification of the epileptogenic zone. Currently, intracranial EEG is considered to be the most reliable preresective functional localisation method. Our objective is to non-invasively localise the epileptogenic zone using simultaneous high-density EEG source imaging (ESI) and fMRI of in...
متن کاملInterictal epileptiform discharges in persons without a history of seizures: what do they mean?
Interictal epileptiform discharge (IED) is rarely observed in healthy volunteers without a history of seizures, but higher rates of occurrence are reported in children than in adults. Higher rates are also observed among neurologic inpatients and outpatients without a seizure history, but the risk of subsequent unprovoked seizures or epilepsy is low in healthy volunteers and patients. An except...
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Very fast oscillations (VFOs, >80 Hz) are important for physiological brain processes and, in excess, with certain epilepsies. Putative mechanisms for VFO include interneuron spiking and network activity in coupled pyramidal cell axons. It is not known whether either, or both, of these apply in pathophysiological conditions. Spontaneously occurring interictal discharges occur in human tissue in...
متن کاملInterictal epileptiform discharges do not change before seizures during sleep.
PURPOSE Whether interictal epileptiform discharges (IEDs) increase, decrease, or are unchanged before epileptic seizures has implications for the pathophysiology of epilepsy. Prior studies relating IEDs and seizures have not demonstrated a change in IEDs before seizures. However, they have not controlled for changes in the depth of sleep. Our objective was to test the hypothesis that IEDs are r...
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Background: Sleep and seizures can affect each other in different ways. Meanwhile, sleep disorders are among the most frequent complaints of patients with epileptic and non-epileptic seizures, with various health outcomes. Objective This study aimed to investigate the psychological symptoms and clinical indicators in patients with/without sleepiness with epileptic/non-epileptic seizures. Meth...
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ژورنال
عنوان ژورنال: IEEE Transactions on Medical Imaging
سال: 2017
ISSN: 0278-0062,1558-254X
DOI: 10.1109/tmi.2016.2595329