montage
Pronunciation: mon-TAHZH
The specific arrangement and combination of electrode connections used in EEG recording and display.
Full Definition
In clinical neurophysiology, a montage refers to the systematic arrangement of electrode pairs and their connections that determines how electrical brain activity is recorded, processed, and displayed during EEG studies. Different montages highlight different aspects of brain electrical activity and spatial relationships between recording sites. Common montages include referential (comparing each electrode to a common reference), bipolar (comparing adjacent electrodes), and average reference montages. The choice of montage affects the appearance and interpretation of EEG patterns, and neurophysiologists routinely review recordings in multiple montages to optimize pattern recognition and localization. Standardized montages ensure consistency in EEG interpretation across different laboratories and practitioners.
Usage
Usage note: Specify the type of montage (bipolar, referential, etc.) for technical accuracy in EEG reports.
In Context
- "The abnormal activity was most clearly visible in the longitudinal bipolar montage." — EEG interpretation report
- "Standard referential and bipolar montages were reviewed during the EEG analysis." — Neurophysiology procedure note