WinCPRS - Professional Software for Biosignal Analysis
Features

1. Basic signals:

  • ECG, continuous blood pressure (noninvasive Finapres/Portapres or invasive blood pressure), breathing flow and volume, integrated MSNA, transcranial Doppler, thorax and leg segment impedance, EEG, Valsalva pressure, force from handgrip device, temperature etc.
  • Possible to import data from other software products: BIOPAC, CAFTS, CHART, DASYLAB, EDF, EMBLA, LABVIEW, NERVUS, PHYSIOCORDER, PSYLAB, WINDAQ, Oxford Medilog ECG/RRI, Marquette Holter, HolterStar, Reynolds PathFinder ECG, Pie Medical, CircMon, Task Force Monitor, TNO Portapres and Finometer, MIT PhysioBank files, also generic columnar ASCII text formats and binary formats.


2. Basic analysis:

  • ECG morphology (RRI, HR, PPI, QT, 6 different QTc, PR, R/T-wave amplitude/area, ST-level, T-wave alternans, QT-dispersion etc.)
  • Ectopic beat detection/editing based on RRI signal
  • HRV turbulence onset/turbulence slope (especially from Holter recordings)
  • SAP, DAP, MAP, PP; editing tool for Finapres calibration cycles
  • SV, CO, TPR and compliance based on either the blood pressure signal, or thoracic impedance measurements
  • Averaged signals using one or two trigger signals
  • qEEG: ZCF, BSR, MPF, PPF, SEF, power bands, BIS, BIC, sliding nonlinear analysis
  • Detection of MSNA burst and activity computations
  • Positions of the R-peak, beat classification, SAP/DAP timing and MSNA bursts can be manually edited
  • Large selection of universal tools for searching periods, minimums/maximums, mutual correlations, distributions, complex demodulation amplitudes, ARMA modeling, mutual information etc.
  • Full capabilities to edit signals: filtering, smoothing, trend removing, interpolation, resampling, decimation, time-axis transformations etc.
  • All signals can be exported in the standard ASCII format to the file or clipboard
  • All statistical results can be saved to file or copied through clipboard to Excel or other statistical software
  • Signals can be easily printed (in full colors) or saved as bitmaps or Windows metafiles, also contour and 3-D plots


3. Spectral analysis:

  • FFT, autoregressive (AR) modeling and Lomb-Scargle
  • Coherences, phase differencies and transfer functions in the frequency domain
  • Partial coherences and transfer functions for the set of three signals
  • Sliding FFT and  autoregressive modeling for time-frequency analysis
  • True time-frequency analysis based on Wigner-Ville distribution


4. Baroreflex function analysis:

  • Spectral BRS based on coherence and phase conditions, also as a function of time
  • Transfer function BRS
  • BRS based on complex demodulation method
  • Local BRS including also non-baroreflex slopes
  • Special tool for phenylephrine and nitroprusside tests with automatic mutual time lag analysis
  • Impulse response BRS based on ARMA modelling


5. Nonlinear analysis:

  • ApEn (approximate entropy), SampEn (sample entropy), FD (fractal dimensions based on curve length and dispersion properties), CD and CDi (global/local correlation dimensions), Lempel-Ziv entropy, FSR (fractional spectral radius), SEn (spectral entropy), DFA (detrended fluctuation analysis), SOD (similarity of distributions), return map deviations (Poincare plot SD1 and SD2), 1/f slopes of spectrums, symbolic dynamics, stationarity test


6. Database:

  • Based on local database files, no configuration problems
  • Each record includes normal patient information, and large anamnesis and diagnosis fields, possible to add also a digital image
  • Search tools for names and ID numbers, filter for the date
  • Records can be retrieved by name, ID number or date
  • Record can be linked to WinCPRS data file


7. Study protocols:
  • Designed to use with the WinAcq data-acquisition system, full support for the real-time data- acquisition and analysis including heart rate measure,  gauge displays and metronome sounds
  • Easy step-by-step protocol procedures
  • Based on specific protocol language, can be modified by the users
  • User interface can include help texts, images, sounds, videos
  • Complete protocol packages available for following standard clinical autonomic tests: spontaneous breathing test, controlled breathing test, deep breathing test, active orthostatic test, Valsalva manoeuvre, handgrip test, tilt table test
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