Electroencephalography（EEG） 腦波檢查
2016-11-07
Purpose
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Diagnosis of Brain Disorders: Electroencephalography (EEG) could be used as a screening tool for brain disorders in order to make sure whether there is brain lesion or where lesion is located. With EEG, we can evaluate the function of cerebral cortex.
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Diagnosis of Epilepsy or Seizure Disorder: EEG is a necessary and important diagnostic basis for epilepsy or seizure disorder.
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Others: EEG could be used to assist the diagnosis of metabolic encephalopathy, brain injury, and dysfunction of cerebral circulation, encephalitis, and tranquilizer intoxication.
Preparation before EEG Examination
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Thoroughly wash and clean your hair the day before EEG examination. Hair glue or grease is forbidden.
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No fasting is needed before EEG examination.
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If you will receive “sleep EEG” examination, try to reduced your sleep time the night before exam. Such as: sleep after midnight, so you may fall asleep easily during the examination.
The Examination Process
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You will be arranged to lie in a gentle-illuminated quiet room.
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Technicians will use electrode paste to stabilize the recording leads on your head.
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Try to stay in a rested and relaxed condition.
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During the examination, you will be asked to lie down quietly. Photic stimulation will be given and a series of deep breath will be demanded, so technicians can record abnormal brain discharges.
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It takes about 30 minutes for routine awake EEG. For “sleep EEG”, It could take around 1~1.5 hours, depending on how long it is for you to fall asleep.
Notes after EEG Examination
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Your could perform your normal daily activities and routines immediately after EEG examination.
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Rinse electrode paste with clean water.
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