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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