نتایج جستجو برای: abnormal eeg
تعداد نتایج: 156878 فیلتر نتایج به سال:
seizure is the most common neurologic disorder in the pediatric age. obtaining thorough history and performing complete examination as well as electroencephalography (eeg) are very important in confirming the diagnosis and finding the cause. epileptiform activity may be enhanced by activating procedures including sleep deprivation. in this study we performed short duration (up to 8 hours) sleep...
Surgery is a safe and effective treatment for drug-resistant temporal lobe epilepsy (TLE). However, bilateral electroencephalographic (EEG) abnormalities are frequently present, making presurgical lateralization difficult. New magnetic resonance (MR) techniques can help; proton magnetic resonance spectroscopic imaging (MRSI) can detect and quantify focal neuronal damage or dysfunction based on ...
PURPOSE This study was undertaken to test the hypothesis that patients with epilepsy have abnormal imaginary coherence compared with control subjects. METHODS Thirty patients with seizures underwent magnetoencephalography (MEG) recording using a whole cortex MEG system. Conventional equivalent current dipoles (ECDs) and synthetic aperture magnetometry (SAM) were used to analyze MEG data. Neur...
PURPOSE Transient global amnesia (TGA) is a syndrome of unknown etiology. Electroencephalographic (EEG) abnormalities in TGA have been reported previously. We analyzed the frequency and characteristics of EEG abnormalities in patients with TGA. METHODS We collected EEGs of patients with a clinical diagnosis of TGA who had visited the emergency room or the outpatient clinic over a period of 8 ...
AIMS To evaluate the effectiveness of phenobarbitone as an anticonvulsant in neonates. METHODS An observational study using video-EEG telemetry. Video-EEG was obtained before treatment was started, for an hour after treatment was given, two hours after treatment was given, and again between 12 and 24 hours after treatment was given. Patients were recruited from all babies who required phenoba...
Alzheimer's disease (AD) is the most common type of neurodegenerative disorder, typically causing dementia along aging. AD is mainly characterized by a pathological extracellular accumulation of amyloid-beta peptides that affects excitatory and inhibitory synaptic transmission, inducing aberrant patterns in neuronal circuits. Growing evidence shows that AD targets cortical neuronal networks rel...
It is well known that the UMACE filter is mostly used for face detection system, text recognition and fingerprint verification. However, in this study, the potential of UMACE to detect changes in EEG data from epilepsy monitoring routine is explored using only one channel of EEG recording. A novel method to analyse and detect variances in scalp EEG is performed by comparing the abnormal region ...
Seizure activity takes place due to an irregular excessive electrical action in the human brain. The electrical activity in the form of brain waves (signals) can measured by using the device called Electroencephalogram (EEG). In this paper, we have reviewed our work so far made regarding EEG signals. Comparative between Artificial Neural Network (ANN) and Support Vector Machine (SVM) this revie...
BACKGROUND Abundant work indicates ADHD abnormal posterior brain structure and function, including abnormal structural and functional asymmetries and reduced corpus callosum size. However, this literature has attracted considerably less research interest than fronto-striatal findings. OBJECTIVE To help address this imbalance, the current study replicates and extends our previous work showing ...
there are several conflicting reports about the eeg of the migraineurs. in this study we report the ictal and interictal eegs of 100 migraineurs, in comparison with control group. the range age for patient and control groups were 9-48 (mean: 26 ± 1.8) and 10-46 (mean: 23 ± 2.1) years respectively. 32% of the patients were less than 14 years old and the remaining 68% were more than 14 years. in ...
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