montage
Pronunciation: mon-TAHZH
The specific arrangement and configuration of electrode pairs used in EEG recording and display.
Full Definition
In neurodiagnostics, a montage refers to the systematic arrangement of electrode connections that determines how electrical activity is recorded and displayed during EEG studies. Different montages highlight different aspects of brain electrical activity and help localize abnormalities. Common montages include bipolar (electrode pairs), referential (electrodes referenced to a common point), and average reference configurations. The choice of montage affects the appearance of waveforms and is crucial for accurate interpretation of EEG findings. Technologists and neurologists use multiple montages during a single study to optimize detection of abnormal patterns.
Usage
Usage note: Borrowed from French; refers specifically to EEG electrode arrangements, not general assemblages.
In Context
- "The seizure was best visualized using a bipolar longitudinal montage." — EEG interpretation note
- "Switch to the average reference montage to better localize the spike focus." — Technical instruction