Elektroenzephalogramm

An elektroenzephalogramm, commonly abbreviated as EEG, is a non-invasive medical test that records the electrical activity of the brain. It is widely used in clinical settings to diagnose and monitor various neurological conditions. The EEG measures voltage fluctuations resulting from ionic current flows within the neurons of the brain. These electrical signals are detected using electrodes placed on the scalp, and the data is then amplified and displayed as a series of waveforms on a monitor or printed on paper.

EEGs are particularly useful for diagnosing epilepsy, sleep disorders, and other conditions that affect brain function. They can also be used to monitor brain activity during surgery or to assess the effectiveness of treatments. The EEG is a safe and painless procedure that typically takes about 20-40 minutes to complete. The results are usually interpreted by a neurophysiologist or a neurologist, who can identify patterns and abnormalities in the brain's electrical activity.

EEGs have several advantages, including their non-invasiveness, relatively low cost, and the ability to provide real-time data. However, they also have limitations. The resolution of EEG is relatively low compared to other imaging techniques, and the signals can be affected by factors such as muscle activity, eye movements, and artifacts from the environment. Despite these limitations, EEG remains an essential tool in the diagnosis and management of neurological disorders.