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5.3 Stage / Index
The current automatically classified EEG stage and the EEG index are indicated in the
right top part of the recording screen:
Stage: A – B
0
– B
1
– B
2
– C
0
– C
1
– C
2
– D
0
– D
1
– D
2
– E
0
– E
1
– E
2
– F
0
– F
1
Index: 100 0
Conscious Deepest hypnosis
Every stage from A to F
1
refers explicitly to a range of indices.
Stage Index
A 95 - 100
B
0
90 - 94
B
1
85 - 89
B
2
80 - 84
C0 75 - 79
C1 70 - 74
C2 65 - 69
D0 57 - 64
D1 47 - 56
D2 37 - 46
E0 27 - 36
E1 20 - 26
E2 13 - 19
F0 5 - 12
F1 0 - 4
• A/B classification: In the ICU version not provided
• The current assessment always refers to Channel 1.
• If the raw EEG is not classified, additional information, e.g. recognized
artifacts or atypical signal patterns were displayed. The information is
recorded in the course of time over the cerebrogram
(See the following overview).
Information Description
Start Recording was started successfully, evaluation is running
Impedance At least one impedance limit has been exceeded
Artifact The EEG signal is loaded with artifact interference
Atypical Atypical signal patterns
Sharp waves Occurrence of epilepsy-typical potentials
EMG EMG superposition of the EEG signal
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