PRANA - Polygraphic Recording Analyzer

The PRANA® software for biosignal processing has convenient tools to rapidly access essential programs and change the software settings.

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File Manager

The software file manager interface features a serie of functions for:

• browsing files from any user-selectable or default software directory,
• sorting and selecting software suite-related files depending on their type or extension,
• executing several software suite commands according to the selected file type.

The software manager is a convenient and powerful tool allowing:

• quickly overviewing the software suite-related file contents,
• directly launching the software suite main programs (Viewer, Profiler, Report Generator) and executing in a single batch a selection of optional plug-ins,
• exporting and visualizing as text and graphic files the results from any software suite optional or user plug-ins.

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Default Setup

The different software programs use default settings allowing identification of users and access to software-related data. These default settings can be modified using the software setup interface.

The different software programs use default settings allowing identification of users and access to software-related data. These default settings can be modified using the software setup interface.

The software setup interface allows:

• specifying the software suite default directories,
• specifying the default reviewing montage and calibration files,
• specifying the default software recording file format filter,
• activating the software suite password-protected user identification and audit trail.

In compliance with standard requirements for computer use and electronic records in the context of good clinical and laboratory practise (ICH - 21 CFR Part 11), the PRANA® software for biosignal processing provides audit trail recording and signing components for non-repudiation of results:

• audit trail recording all software operations and plug-in settings,
• date, time and user stamping,
• centralised identification and password validation.

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Plug-in Launcher

The software plug-in launcher is a convenient time-saving tool allowing the selection, configuration and single-run execution of multiple software suite plug-ins.

The software plug-in launcher allows:

• selection of a list of optional or user plug-ins to be executed,
• access to selected software plug-ins interface for configuration,
• adjustment of the recording time interval for all selected software plug-ins,
• launching and executing in a single run all selected software plug-ins.

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Developer Kit

The software developer kit allows users with a basic knowledge of MATLAB to easily and quickly integrate their own algorithms to create additional software plug-ins featuring new signal analysis or detection methods.

The software developer kit contains the source code and prototype interface allowing to:

• display, edit and register the settings configuring any user plug-ins from a graphical interface,
• access the requested signals as a workspace data matrix with time and channel as input parameters,
• quiclky integrate any algorithms without the need to handle input/output compatibility,
• implement, test and optimise any algorithms for signal processing or event detection,
• save the results of the integrated algorithms either as time serie or event files compatble with the software suite programs and export funtion.

Software plug-ins developped by users are automatically detected and can be launched and executed independently of the file format used to stored recordings.

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Import/Export

The software contains a set of internal import/export functions allowing input/output interoperability with external data from various hardware acquisition and software analysis systems.

Here is a list of the available plug-ins for importing results data stored under various file formats:

• Single-row ASCII scores (*.txt).
• Endymion scores (*.txt) from the Hôpital Erasme, Bruxelles.
• Zurich System scores (*.vis) from Zurich Pharmacology Institute.
• Somnomogica export scores and events (*.txt) from Flaga-MedCare.
• Nihon-Khoden export scores (*.txt) from Nihon Kohden.
• BrainLab export scores and events (*.xls) from Schwartzer/OSG.
• Medatec binary scores (*.don) from Medatec.
• Biosleep EDF scores (*.wrs) from Oxford Instruments, Inc.
• Actiwatch & Actiwatch Plus actigrams (*.awd) from Cambridge Technology.
• Mini Logger Serie 2000 Heart Rate Data logger interbeat intervals (*.hr_) from Mini Mitter.

The software also has import/export functions based on software-specific ASCII file formats with tabulation separators and headers containing all the necessary information to encode various data type. These ASCII file formats can be used to export and import the results of each of the software analysis and detection plug-ins. All the results obtained from the software can thus be opened using any text file editor (Notepad, Write, etc.).

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PhiTools provides advanced software solutions and services for biosignal processing, sleep analysis, psychophysiological research and clinical trials. PhiTools, software tools and services for psychophysiology, polysmonography and chronobiology.