PROSPECTS OF COMPUTER PROCESSING OF ELECTROENCEPHALOGRAPHY WITH SPECTRAL POWER CALCULATION DURING SCREENING EXAMINATIONS

Kipyatkov Nikita Yurievich, Belskaya Ksenia Alekseevna

Introduction: during screening examinations of the population, EEG is widely used to assess the functioning of the brain, primarily to exclude epileptic changes. The need to examine a large number of subjects in a short time period dictates its own characteristics and inevitably reduces the diagnostic value of the study. Objective: to analyze the use of EEG in screening conditions during dispensary examinations and to try to select from a wide variety of quantitative assessment methods those that, on the one hand, are mathematically more universal (taking into account a wide variety of EEG processing devices and programs), on the other hand, are clinically reliable. Methods: we recorded the resting EEG for a minute in 8 bipolar leads: using the complexes Micar-EEG-202 and Neuron-Spectrum-2. The subsequent computer processing of the signal was carried out using the WinEEG program. Group A was formed for the study. It consisted of 890 healthy subjects aged 18 to 65 years who underwent voluntary psychiatric examination. For control, the study group B was used - 82 patients with diagnoses encoded within the subgroup Mental disorders and behavioral disorders (F00-F99) ICD 10. Results: as part of our work, we evaluated the possibility of using quantitative indicators of computer signal processing in screening conditions in addition to standard visual analysis. It is shown that the determination of spectral power by ranges gives the most repeatable results when conducting EEG under different conditions. Conclusion: a high degree of reliability of spectral power indicators in the theta range can be noted when comparing large groups of healthy subjects and patients with a neuropsychiatric profile.

Keywords:screening examinations, EEG, brain, computer analysis