نتایج جستجو برای: abnormal eeg

تعداد نتایج: 156878  

Journal: :acta medica iranica 0
z. keihani z. haghshenas k. daneshjou a. azarfar

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...

Journal: :Annals of neurology 1997
F Cendes Z Caramanos F Andermann F Dubeau D L Arnold

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 ...

Journal: :Seizure 2014
Ting Wu Sheng Ge Rui Zhang Hongyi Liu Qiqi Chen Ruirui Zhao Yan Yin Xiuxiu Lv Tianzi Jiang

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...

Journal: :Seizure 2014
YooSeok Kwon YoungSoon Yang Jae-Won Jang Young Ho Park JungEun Kim Seong-Ho Park SangYun Kim

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 ...

Journal: :Archives of disease in childhood. Fetal and neonatal edition 2002
G B Boylan J M Rennie R M Pressler G Wilson M Morton C D Binnie

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...

Journal: :International journal of psychophysiology : official journal of the International Organization of Psychophysiology 2016
Claudio Babiloni Roberta Lizio Nicola Marzano Paolo Capotosto Andrea Soricelli Antonio Ivano Triggiani Susanna Cordone Loreto Gesualdo Claudio Del Percio

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...

2013
Rosniwati Ghafar Aini Hussain Abdul Samad Md Tahir

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 ...

2014
B. Suguna Nanthini B. Santhi

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...

2014
T. Sigi Hale Andrea M. Kane Kelly L. Tung Olivia Kaminsky James J. McGough Grant Hanada Sandra K. Loo

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 ...

Journal: :acta medica iranica 0
h. pourmahmoodian m. kahani m. ghaffarpour m. h. harrirchian m. ghabaee a. fallah

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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