QEEG
Pronunciation: Q-E-E-G
Also written as: QEEG — Quantitative Electroencephalography
Computer-based statistical analysis of EEG data that provides objective measurements of brain electrical activity compared to normative databases.
Full Definition
Quantitative Electroencephalography (QEEG) represents a sophisticated analytical approach that applies mathematical and statistical methods to standard EEG recordings. This technique transforms raw EEG data into quantitative measures such as absolute and relative power, coherence, phase relationships, and asymmetry indices across different frequency bands. QEEG results are typically compared to age-matched normative databases to identify statistically significant deviations from normal patterns. The analysis generates topographic brain maps that visually represent areas of abnormal electrical activity, making it valuable for research applications, treatment monitoring, and enhanced clinical interpretation. QEEG is particularly useful in subtle brain dysfunction assessment where conventional EEG interpretation might be insufficient.
Usage
Usage note: Always capitalize as acronym; distinguish from standard EEG interpretation
In Context
- "QEEG analysis demonstrated increased theta activity in frontal regions compared to age-matched controls." — Research publication
- "The neurologist ordered QEEG to evaluate subtle changes in brain function following the concussion." — Clinical consultation note