PRANA - Polygraphic Recording Analyzer

... the biosignal processing software for PSG and quantitative EEG analysis

The PRANA® software is a complete software for polysomnography and biosignal processing developed by PhiTools. It provides users and experts with fast and convenient tools for reviewing and state-of-the-art analysis of physiological and behavioral recordings including different types of signals such as EEG, EOG, EMG, EKG, EDA, respiration, pulse oxymetry, blood pressure, temperature, activity, etc.

Reviewer for PSG scoring and QEEG analysis

The PRANA® software package, available either as a stand-alone program for production or as a MATLAB® toolbox for developer, provides high visualization and computing performance to review and analyse biosignals and time series. The software can be used for various purposes such as sleep, alertness, vigilance and stress analysis, as well as many other applications, using quantitative EEG analysis with artifact detection and correction/rejection, heart-rate, pulse or arterial pressure variability and respiration analysis. Various data with different time scales (traces, markers, events, trends) can be displayed simultaneously and in total synchronicity with a 1-msec accuracy. Based on a library of digital recording file formats, the software package can be used independently of the hardware collection systems ensuring data exchange and comparability. The software package also includes a set of powerful data management tools and comprehensive report generators.

Profiler for time series exploration

From a graphical user interface, the PRANA® software package Viewer program allows displaying and reviewing of a selection of signals using various montage, re-referencing, filtering, artifact correction and denoising options based on blind source separation (BSS). Its complete navigation and search tools ensure a fast and easy recording review. Recording annotation and stage scoring can be undertaken easily by simple mouse-clicks and keybord key-presses inserting markers and scores directly from the traces. The PRANA Viewer program also offers an expert scoring system adapted to various classification rules (human/animal sleep and vigilance analysis, haemorrhagic shock, anaesthetic depth, etc.). Any recording portions can be scored by several experts on an epoch-by-epoch basis with selectable epoch durations.

A series of additional graphically interfaced modules accompany the PRANA® software package for polysomnography and biosignal processing. These optional PRANA® software plug-ins feature general to specific time-varying or event-related quantitative biosignal analysis as well as various transient waveform and event detection methods:

Data management tools

• the power spectral analysis plug-in
• the spectral coherency analysis plug-in
• the feature extraction plug-in
• the heart rate variability analysis plug-in
• the respiratory rate analysis plug-in
• the event-related waveform analysis plug-in
• the event-related neuro-autonomic analysis plug-in
• the automatic sleep/wake scoring plug-in*
• the artifact detection plug-in
• the waveform detection plug-in
• the rapid eye-movement detection plug-in
• the sleep spindle detection plug-in
• the sleep K-complex detection plug-in*
• the respiratory event detection plug-in*

The PRANA® software package also includes Profiler, a fully integrated and graphically interfaced program for the fusion, selection, representation and post-processing of time series. This provides a fast and convenient mean to prepare any data sets prior further statistical analysis.

To save your time, the PRANA® software includes an easy to use plug-in launcher which allows performing multiple individual analyses into single-run, reducing user-computer time-consuming interventions.

The PRANA® software for polysomnography and biosignal processing is available in two different releases, the Production Suite delivered as a stand-alone appplication with high computing performance, and the Developer Suite delivered as a MATLAB® toolbox for those with a basic knowledge in computer programming planning to develop new software plug-ins by integrating their own signal processing algorithms. Thus, the PRANA® Developer Suite, together with its software developer kit, allows quickly integrating new biosignal analysis and event/waveform detection algorithms, without the need to handle input/output interoperability while decreasing development time.

Based on MATLAB®, the PRANA® software combines high computing performance and friendly user interfaces ensuring efficient biosignal review and time serie analysis.

Download the PRANA® software*

* requires Windows 2000/XP/Vista

Interoperability

The PRANA® software supports digital recordings from virtually any computerized acquisition systems and allows full interoperability between collection and analysis systems. The software package fileformat library supports direct reading of recording files from the following systems:

• AcqKnowledge v3 recordings (*.acq) from Biopac Systems, Inc.
• BrainLab v3 recordings (*.sig) from Schwartzer/OSG.
• Dataquest ART v1/2 recordings (*.*0*) from DataScience.
• Deltamed recordings (*.dsc) from DeltaMed SaRL.
• DigiTrace recordings (*.w18) from Digitrace-Telefactor.
• Eclipse/Monitor recordings (*.eeg) from Stellate Systems, Inc.
• European Data Format recordings (*.edf) from the EDF consortium.
• Embla v4 recordings (*.ebm) from Flaga-MedCare.
• Endymion recordings (*.dat) from the Hôpital Erasme, Bruxelles.
• Medilog MR9200 recordings (*.008) from Oxford Instruments, Inc.
• Micromed recordings (*.trc) from Micromed.
• Microtronics SAC recordings (*.opt) from Oxford Instruments, Inc.
• Neuroscan v3-4 continuous recordings (*.cnt) from NeuroSoft.
• Nervus/Profile recordings (*.eeg) from Oxford Instruments, Inc.
• PSG Gamma recordings (*.psg) from AstroMed.
• Rhythm/Monitor recordings (*.eeg) from Stellate Systems, Inc.
• Nihon-Khoden EEG 2100/1100 recordings (*.eeg) from Nihon Kohden.
• Sommeil recordings (d.*) from FORENAP.
• Zurich System recordings (*.hdr) from Zurich Pharmacology Institute.
• Ultrasom NT recordings (*.raw) from Nicolet.

Independently of the original recording type, the software supports various export options:

• European Data Format recordings (*.edf) from the EDF consortium.
• LORETA EEG/ERP files (*.lor) from the KEY Institute for Brain-Mind Research.
• MATLAB binary files (*.pra).
• Raw binary int16 files (*.bin).
• Standard ASCII text files (*.txt).

A software-specific ASCII file format with tabulation separators and standard headers containing all the information necessary to encode various data types ensures exporting and importing the results obtained from any analysis or detection software plug-ins. All results can be opened using any text-file editor (Notepad, Write, etc.).

Additional digital recording types can be implemented on demand when the file format used to stored the data is known. For any information, contact us at: contact@phitools.com

System requirements

All you need to start working with the PRANA® software is an IBM compatible personal computer running under a Windows operating system.

The important amount of computations required by the software for several algorithms may require a powerful computer configuration, with a rapid central processing unit, a good video board and a comfortable amount of rapid-access memory, which will speed up both data processing and reviewing.

Recommended configuration:

• AMD or Pentium IV 2 GHz processor,
• 1024 MB RAM,
• 100 GB hard drive,
• 1280x1024 graphic resolution with 32-bit color coding and 17-inch 0.26-pitch monitor,
• Windows XP operating systems.

Based on MATLAB®, the PRANA® software combines high computing performance and friendly user interfaces ensuring efficient biosignal review and time serie analysis.

Download the PRANA® software*

* requires Windows 2000/XP

PhiTools provides advanced solutions and software for biosignal processing, sleep, alterness and stress assessment, psychophysiological research and clinical trials. PhiTools, software tools and services for psychophysiology, polysmonography and chronobiology, biosignal processing software, PSG interpretation, quantitative EEG analysis with artifact detection and correction, sleep, alertness, vigilance and stress assessment, HRV heart rate variability, cardiovascular and respiratory analysis.