Analysis of changes in blood flow oscillations under different probe pressure using laser Doppler spectrum decomposition

Kozlov, Igor O.; Zherebtsov, Evgeny A.; Mezentsev, Mikhail A.; Shupletsov, Valery V.; Potapova, Elena V.; Zherebtsova, Angelina I.; Dremin, Viktor V.; Dunaev, Andrey V.; Meglinski, Igor V. (2019-07-22)
 
Avaa tiedosto
Lataukset: 

URL:
https://doi.org/10.1117/12.2527040

Kozlov, Igor O.
Zherebtsov, Evgeny A.
Mezentsev, Mikhail A.
Shupletsov, Valery V.
Potapova, Elena V.
Zherebtsova, Angelina I.
Dremin, Viktor V.
Dunaev, Andrey V.
Meglinski, Igor V.
SPIE
22.07.2019

Igor O. Kozlov, Evgeny A. Zherebtsov, Mikhail A. Mezentsev, Valery V. Shupletsov, Elena V. Potapova, Angelina I. Zherebtsova, Viktor V. Dremin, Andrey V. Dunaev, and Igor V. Meglinski "Analysis of changes in blood flow oscillations under different probe pressure using laser Doppler spectrum decomposition", Proc. SPIE 11079, Medical Laser Applications and Laser-Tissue Interactions IX, 110791Q (22 July 2019); https://doi.org/10.1117/12.2527040

https://rightsstatements.org/vocab/InC/1.0/
© 2019 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.
https://rightsstatements.org/vocab/InC/1.0/
doi:https://doi.org/10.1117/12.2527040
Näytä kaikki kuvailutiedot
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2019082725788
Tiivistelmä

Abstract

Presently, in the modern laser Doppler flowmetry (LDF) the distribution of blood perfusion and its changes along the Doppler shift frequencies are simply ignored and/or not properly addressed. Utilizing the registered power spectrum of photocurrent, we introduce an LDF signal processing approach suitable for expanding of diagnostic capabilities of the technique. In particular, we demonstrate that it is possible to determine how the oscillations of blood ow (cardiac, breathe, myogenic, etc.) are distributed along the Doppler shift frequency. Wavelet analysis is utilized to extract the oscillations corresponded to the particular frequency sub-bands of blood perfusion. The main purpose of this study is to identify influence of local pressure by fiber optic probe on cardiac oscillations and their distribution along frequency of Doppler shift.

Kokoelmat