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

Paper Details

Date Published: 22 July 2019
PDF: 4 pages
Proc. SPIE 11079, Medical Laser Applications and Laser-Tissue Interactions IX, 110791Q (22 July 2019); doi: 10.1117/12.2527040
Show Author Affiliations
Igor O. Kozlov, Orel State Univ. named after I.S. Turgenev (Russian Federation)
Evgeny A. Zherebtsov, Orel State Univ. named after I.S. Turgenev (Russian Federation)
Univ. of Oulu (Finland)
Mikhail A. Mezentsev, Orel State Univ. named after I.S. Turgenev (Russian Federation)
Valery V. Shupletsov, Orel State Univ. named after I.S. Turgenev (Russian Federation)
Elena V. Potapova, Orel State Univ. named after I.S. Turgenev (Russian Federation)
Angelina I. Zherebtsova, Orel State Univ. named after I.S. Turgenev (Russian Federation)
Viktor V. Dremin, Orel State Univ. named after I.S. Turgenev (Russian Federation)
Univ. of Oulu (Finland)
Andrey V. Dunaev, Orel State Univ. named after I.S. Turgenev (Russian Federation)
Igor V. Meglinski, Univ. of Oulu (Finland)


Published in SPIE Proceedings Vol. 11079:
Medical Laser Applications and Laser-Tissue Interactions IX
Lothar D. Lilge; Carsten M. Philipp, Editor(s)

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