Nomics Brizzy+, User Manual, Page: 38 / 59

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By changing the parameters, the user influences the definitions of the events used by the
automatic analysis method and, therefore, may also influence the results of the automatic
analysis.
To launch an automatic analysis of the recording, go to the ' Tools ' menu and click on
' Analyse data '.
You will be asked whether or not you wish to set the beginning and end of the analysis
period. If you accept to set them, you will have to click in the '
Navigator ' successively at
the start point and end point of the analysis. These two points will appear on the screen as
big colour-streaked lines. Everything outside these two points will be excluded from the
analysis.
If you decline to set the beginning and end of the analysis period and if these points have
not been set previously, the analysis will run over the entire recording.
Once the analysis has completed, a report is automatically generated. The report is
displayed under the '
Patient ' tab.
Under the 'Signals' tab, the automatic analysis has created markings on the signals.
Exclusion periods are marked by grey streaks. Exclusion periods correspond either to
periods which are outside the analysis period (before the beginning and after the end of the
analysis) or to periods where wake has been detected inside the analysis period. Several
methods of automatic discrimination between wake and sleep are proposed to the user (via
'Analysis parameters' in the 'Tools' menu). These methods are described in the same
document which gives the definitions and the algorithmic principles and which you may find
in the 'Help' menu of the software. Some of these methods base themselves on the Jawac
signal in order to detect wake. Indeed, the mandible behaves differently when the subject is
awake or asleep. Thus, thanks to the mandibular lowering sensor, the system is able to
differentiate wake from sleep efficiently.
The events occurring during sleep are marked by colours. For the sake of clarity, colour is
only applied to the signals which participate by default to the scoring of the type of event in
question. Every type of marking is associated with a colour and a text, which generally is an
English abbreviation of the corresponding event. Example: '
OA ' for Obstructive Apnea. One
may see the list of abbreviations and what they stand for by opening the 'Marking toolbox'
window (via the 'View' menu). This window shows the keyboard shortcut (for manual
marking), the colour, and the text associated with each type of marking as well as its
complete designation. Note that only the markings which are applicable to the active signal
(i.e. the signal on which one has clicked last) are displayed in the 'Marking toolbox' window.
For example, information related to the marking of a desaturation will show in the 'Marking
toolbox' window only if the active signal is SpO2.
The complete list of possible markings is given in the document which describes the
keyboard shortcuts (document to be found in the '
Help' menu).