Eeg Headset Khmelnitsky

System of a computer electroencephalography for registration and the analysis of EEG and evoked potentials with a possibility of implementation of EEG - videomonitoring.

The BRAINTEST system allows to register 4,8,12,16,19,21 channel EEG in the 10 - 20 system synchronously from an ECG on one assignment according to the protocol of research or in the monitoring mode.

The high technical characteristics of the device and special software implemented in system allow to receive a high - fidelity recording of the electroencephalogram in any room.

The system of various filters carries out digital filtering of EEG in real time.

For visualization of the electroencephalogram of a look, usual for the doctor, the possibility of change of amplitude and temporary development of EEG is provided during record and viewing.

The electroencephalogram is displayed on the screen in any installation chosen by the user (monopolar, bipolar, mixed). For change of representation of EEG the system allows to create any installations and afterwards to use them in the program.

In system the possibility of carrying out sound and light stimulation is implemented; duration and frequency of incentives are set programmatically by means of special system of settings.

The qualitative digital EEG - videomonitoring implemented in system allows to record along with record EEG the video image of the patient with the hard drive personal computer.

The modern video camera with distance steering allows the doctor to watch without tension the patient and to write down the image of those parts of a body or person and in such foreshortening and increase as it is necessary for specific inspection. Compression of video signal in real time gives the chance of carrying out long EEG - videomoni - toringa (48 hours).

Processing and analysis of EEG

The software of system provides a wide set of methods of processing of the electroencephalogram and forms of representation of results of its analysis.

Viewing of EEG - viewing in various systems of assignments, podiapazonny filtering, editing EEG, filtering of EEG, comparison of two electroencephalograms.

Mapping of the most different data: capacities of frequency ranges, median frequency of a range, kanonogramm (ratios of ranges), capacities at all analyzed frequencies, amplitudes of EEG, correlation coefficients, coherence coefficients; two - and Three - dimensional mapping.

The method of complex function of coherence and the traditional correlation analysis which allows to calculate and construct a car - and krosskorrelogramma, the table of correlation coefficients and a cartogram of their distribution is applied to research of a condition of the existential organization of electric activity of a brain in system.

Cards on frequency ranges give the chance to study asymmetry in each of standard ranges (the delta, a theta, an alpha, a beta). At the same time mapping can subject any visible fragment of EEG, to allocate the analyzed site or to receive the integral characteristic during one of functional trials.

Schedules, charts and tables

In the computer BRAINTEST electroencephalograph representation of results of a spectral analysis (on the basis of Fourier or Wavelet - transformation with flexible system of settings), a car - and the krosskor - relational, coherent, bispektral - ny analysis both in the form of directly tables and numbers, and in the form of schedules, charts and cards of distribution, with a possibility of scaling and printing is implemented. The form of representation of results can be adjusted according to preferences of the user.

Probabilistic Tomography: creation of any cuts in orthogonal system of coordinates of XYZ, combination with anatomical structures, three - dimensional representation of the center of electric activity.

Calculation of tomograms for any site of EEG, creation of tomograms on all tests of research

The window Digital data represents the table of capacities in all standard ranges for all assignments of installation.

Windows the Frequency plane, Circular charts of ranges and Digital data give the chance to estimate a ratio of the making standard ranges both quantitatively, and is qualitative.

The Card mode on Tests removes in one window of the card of total activity on each of tests of research on four frequency ranges.

To estimate dynamics of spectral characteristics of EEG, their change in the course of functional trials the Card modes on Tests, Wavelet the analysis, the Squeezed spectral regions, the Bispektralny analysis, the Law of Distribution are called.

Three - dimensional mapping

For relief of visual perception of cards their three - dimensional option representing volume model of the head on which according to the established electrodes and the corresponding values of the registered signals, a certain color surface is imposed is provided in system.

For localization of the center of electric activity on three - dimensional model in the form of rings the cut plane is shown.

Summarized information on spectral structure of EEG is provided in the automatic description of the electroencephalogram.

Registration and analysis of the evoked potentials (EP)

The system allows to carry out registration and the analysis acoustical, visual and cognitive (A conditional and negative wave of expectation and a phenomenon of P300) long and latent evoked potentials.

The system gives the following opportunities for research of evoked potentials:

- automatic detection of peaks;

- calculation of latencies, amplitudes and the area under a response;

- amplitude and frequency mapping;

- a spectral analysis and comparison of responses from different researches,

- representation of results of the analysis in the form of schedules, tables and charts.

For more deeply studying of functions of visual system of the patient registration of visual VP for a reverse chess pattern is used.

Analysis of the variability of a cordial rhythm (VCR)

In the analysis of variability of a cordial rhythm the system reports results:

- statistical analysis;

- analysis of wave structure of a heart rhythm;

- analysis of a skaterogramma;

- a variation pulsometriya across Bayevsky.

In a window of the analysis of VSR results of the analysis of several fragments of an ECG, one or different patients can be located at once.

For each considered site the ritmokardiogramma (either the schedule of ChSS, or the schedule of RR), the histogram of distribution of R - R of intervals, skatero - gram, statistical parameters ritmo - grams, the schedule of the spectrogram, numerical parameters of the spectrogram is removed

Data storage

Preservation of a card of the patient, the registered EEG, case histories and the conclusions, an archiving of records on the replaceable carrier, sorting and search of patients, other service functions.

Possibility of data transmission of research on a local network or Internet.

Possibility of forming of statistical data for the chosen period.

Forming of the conclusion and press

For simplification of issue of the conclusion to the doctor several opportunities of forming of text part of the conclusion are offered (the automatic description of EEG, on one of templates, on system a question - answer, in any text form).

The Question - answer mode allows on one of the available and changing templates in a dialogue form quickly to construct the text conclusion of any volume and complexity.

All forms of representation of EEG, results of its analysis and the conclusion can be printed. Configuration of a leaf absolutely any. For simplification of preparation of a form of account the preview mode is provided in system.