METHOD OF HUMAN MICROCIRCULATION CHANNEL REGULATION ANALYSIS Russian patent published in 2008 - IPC A61B5/26 

FIELD: medicine.

SUBSTANCE: blood microcirculation speed indicators are registered through laser Doppler ultrasonic flowmetering. Spectral analysis of resulted flowgram is carried out by continuous wavelet transform including evaluation of cardio-timing frequency power a at time point b by formula , where W (a, b) - wavelet transform factor; f (t) - analysed function; ψ(((t-b)/a)-analysed wavelet. Scaling pattern is drawn up based on scaling wavelet factor within segment [b_i, b_j] by formula , where i, j<N, j>i, V (al) - scaling pattern signal; N - number of factors; al - wavelet transform scale. Physiologically significant frequency ranges are marked on scaling patterns as distances between adjacent local minima on scaling curve by formula: Δa = a_m - a_n, where Δa - physiologically significant range, a_m, a_n - adjacent local minima on scaling curve. Wavelet power density values U are evaluated for each frequency range Δa = [a_m, a_n] by formula , then time variation of wavelet power density is calculated as U (t); and time variation of frequency ranges are detected as Δa (t). Specific wavelet power density values U ' by time is given by: U ' = U (t) / Δa (t).

EFFECT: increased informativity and accuracy of human microcirculation channel regulation analysis.

2 dwg, 1 ex