17 Monitoring EEG
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7
Check the electrode-to-skin impedance in the EEG Impedance / Montage window.
8 For good signal quality, keep all lead wires together and away from other electric devices and
metallic bodies.
Using the EEG Impedance/Montage Window
To open the window, in the Setup EEG menu, select Show Montage, or select the EEG Montage
SmartKey.
The window may be configured to look slightly different on your monitor.
1 Electrode locations on the patient's head. The symbols represent the electrode-to-skin impedance.
2 Wiring and impedance values for the selected montage
Choosing an EEG Electrode Montage
1 To activate one of the five pre-configured electrode montages, select the arrow beside the label in
the
EEG Impedance / Montage window and choose a montage from the list.
2 Attach the electrodes as illustrated in the EEG Impedance / Montage window.
The five default electrode montage configurations can be modified and renamed in Configuration
Mode.
The electrode locations are labeled according to the international 10-20 electrode placement system.
Montage Name EEG1+ EEG1- Label1 EEG2+ EEG2- Label2
Montage A Fp1 T3 Fp1-T3 Fp2 T4 Fp2-T4
Montage B O1 T3 O1-T3 O2 T4 O2-T4
Montage C F3 C3 F3-C3 F4 C4 F4-C4
Montage D C3 P3 C3-P3 C4 P4 C4-P4
Montage E Fp1 T5 Fp1-T5 Fp2 T6 Fp2-T6
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