electroencephalogram
Pronunciation: ih-lek-tro-en-SEF-uh-lo-gram
Also written as: EEG — electroencephalogram
Non-invasive test that records electrical activity in the brain using electrodes placed on the scalp.
Full Definition
An electroencephalogram (EEG) is a fundamental diagnostic tool in pediatric neurology that measures electrical impulses generated by brain cells. The test involves placing multiple electrodes on a child's scalp to detect abnormal brain wave patterns that may indicate seizure activity, developmental delays, or other neurological conditions. EEGs are particularly valuable in pediatric patients because they are painless and can often be performed while children sleep or play. Results help neurologists diagnose epilepsy, monitor treatment effectiveness, and identify subtle seizure activity that may not be clinically apparent.
Usage
Usage note: Always spell out on first use, then use EEG abbreviation. Distinguish from related tests like EMG (electromyogram) and ECG (electrocardiogram).
In Context
- "The pediatric neurologist ordered a routine EEG to evaluate the child's episodes of staring spells." — Medical consultation note
- "Sleep-deprived EEG protocols are often used in pediatric patients to increase the likelihood of capturing abnormal activity." — Diagnostic procedure documentation