
EEG (electroencephalogram) - Mayo Clinic
2024年5月29日 · An electroencephalogram (EEG) is a test that measures electrical activity in the brain. This test also is called an EEG. The test uses small, metal discs called electrodes that attach to the scalp.
EEG (Electroencephalogram): What It Is, Procedure & Results
2024年3月8日 · An electroencephalogram (EEG) tests your brain function. Healthcare providers order EEGs to diagnose conditions that affect your brain. Providers may use the term EEG for the test itself and what it shows. In an EEG, electrodes placed on your scalp track your brain activity. The electrodes send information to a machine that records brain activity.
EEG Test (Electroencephalogram): Purpose, Procedure, and Results - WebMD
2023年12月18日 · An EEG, or electroencephalogram, is a test that records the electrical signals of the brain by using small metal discs (called electrodes) that are attached to your scalp.
Electroencephalogram (EEG) - Johns Hopkins Medicine
An EEG is a test that detects abnormalities in your brain waves, or in the electrical activity of your brain. During an EEG, electrodes are pasted onto your scalp. These are small metal disks with thin wires. They detect tiny electrical charges that result from the activity of your brain cells.
EEG (Electroencephalogram): Purpose, Procedure, and Risks - Healthline
2021年11月9日 · An EEG is a test that measures your brain waves and helps detect abnormal brain activity. The results of an EEG can be used to rule out or confirm medical conditions.
What Is an EEG Used For? - Verywell Health
2025年2月25日 · An EEG is a test that records the electrical activity in your brain. It is most often used to diagnose epilepsy, but it can also be used for head injuries, brain tumors, stroke, and infections such as encephalitis.
Electroencephalography (EEG) Prep, During, After, Results, Cost
The electroencephalogram (EEG) is a measure of brain waves. It is a readily available test that provides evidence of how the brain functions over time. The EEG is used in the evaluation of brain disorders. Most commonly it is used to show the type and location of the activity in the brain during a seizure. It also is used to evaluate people who ...
EEG Testing: A Patient's Guide - HSS
2018年8月21日 · What is EEG Testing? EEG or Electroencephalography is a test used to study brain wave patterns. It can provide your doctor with information about the nature of the type of difficulties you’ve been experiencing. What to expect during EEG testing? A specially trained EEG technician will first measure your head with a tape measure.
Electroencephalogram (EEG) - NHS
An electroencephalogram (EEG) is a recording of brain activity. During this painless test, small sensors are attached to the scalp to pick up the electrical signals produced by the brain. These signals are recorded by a machine and are looked at by a doctor.
Electroencephalogram (EEG): Uses, Procedure, and Results
2022年7月25日 · An electroencephalogram (EEG) is a noninvasive, painless test that detects unusual electrical activity in the brain. A technician attaches electrodes to your scalp to record the electrical impulses that form brain wave activity.