Spatial heterogeneity of cutaneous blood flow respiratory-related oscillations quantified via laser speckle contrast imaging.

LSCI technique provides experimental data which can be considered in the context of spatial blood flow coherency. Analysis of vascular tone oscillations gives additional information to ensure a better understanding of the mechanisms affecting microvascular physiology. The oscillations with different...

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Autores principales:	Irina Mizeva, Elena Potapova, Viktor Dremin, Igor Kozlov, Andrey Dunaev
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/65afe621222043a4b7f128d375d7ce0a
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spelling	oai:doaj.org-article:65afe621222043a4b7f128d375d7ce0a2021-11-25T06:23:39ZSpatial heterogeneity of cutaneous blood flow respiratory-related oscillations quantified via laser speckle contrast imaging.1932-620310.1371/journal.pone.0252296https://doaj.org/article/65afe621222043a4b7f128d375d7ce0a2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0252296https://doaj.org/toc/1932-6203LSCI technique provides experimental data which can be considered in the context of spatial blood flow coherency. Analysis of vascular tone oscillations gives additional information to ensure a better understanding of the mechanisms affecting microvascular physiology. The oscillations with different frequencies are due to different physiological mechanisms. The reasons for the generation of peripheral blood flow oscillations in the 0.14-0.6 Hz frequency band are as follows: cardio-respiratory interactions, pressure variations in the venous part of the circulatory system, and the effect of the sympathetic nervous system on the vascular tone. Earlier, we described the spatial heterogeneity of around 0.3 Hz oscillations and this motivated us to continue the research to find the conditions for the occurrence of spatial phase synchronization. For this purpose, a number of physiological tests (controlled respiration, breath holder, and venous occlusion tests) which influence the blood flow oscillations of 0.14-0.6 Hz were considered, an appropriate measurement system and the required data processing algorithms were developed. At spontaneous respiration, the oscillations with frequencies around 0.3 Hz were stochastic, whereas all the performed tests induced an increase in spatial coherence. The protocols and methods proposed here can help to clarify whether the heterogeneity of respiratory-related blood flow oscillations exists on the skin surface.Irina MizevaElena PotapovaViktor DreminIgor KozlovAndrey DunaevPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 5, p e0252296 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Irina Mizeva Elena Potapova Viktor Dremin Igor Kozlov Andrey Dunaev Spatial heterogeneity of cutaneous blood flow respiratory-related oscillations quantified via laser speckle contrast imaging.
description	LSCI technique provides experimental data which can be considered in the context of spatial blood flow coherency. Analysis of vascular tone oscillations gives additional information to ensure a better understanding of the mechanisms affecting microvascular physiology. The oscillations with different frequencies are due to different physiological mechanisms. The reasons for the generation of peripheral blood flow oscillations in the 0.14-0.6 Hz frequency band are as follows: cardio-respiratory interactions, pressure variations in the venous part of the circulatory system, and the effect of the sympathetic nervous system on the vascular tone. Earlier, we described the spatial heterogeneity of around 0.3 Hz oscillations and this motivated us to continue the research to find the conditions for the occurrence of spatial phase synchronization. For this purpose, a number of physiological tests (controlled respiration, breath holder, and venous occlusion tests) which influence the blood flow oscillations of 0.14-0.6 Hz were considered, an appropriate measurement system and the required data processing algorithms were developed. At spontaneous respiration, the oscillations with frequencies around 0.3 Hz were stochastic, whereas all the performed tests induced an increase in spatial coherence. The protocols and methods proposed here can help to clarify whether the heterogeneity of respiratory-related blood flow oscillations exists on the skin surface.
format	article
author	Irina Mizeva Elena Potapova Viktor Dremin Igor Kozlov Andrey Dunaev
author_facet	Irina Mizeva Elena Potapova Viktor Dremin Igor Kozlov Andrey Dunaev
author_sort	Irina Mizeva
title	Spatial heterogeneity of cutaneous blood flow respiratory-related oscillations quantified via laser speckle contrast imaging.
title_short	Spatial heterogeneity of cutaneous blood flow respiratory-related oscillations quantified via laser speckle contrast imaging.
title_full	Spatial heterogeneity of cutaneous blood flow respiratory-related oscillations quantified via laser speckle contrast imaging.
title_fullStr	Spatial heterogeneity of cutaneous blood flow respiratory-related oscillations quantified via laser speckle contrast imaging.
title_full_unstemmed	Spatial heterogeneity of cutaneous blood flow respiratory-related oscillations quantified via laser speckle contrast imaging.
title_sort	spatial heterogeneity of cutaneous blood flow respiratory-related oscillations quantified via laser speckle contrast imaging.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/65afe621222043a4b7f128d375d7ce0a
work_keys_str_mv	AT irinamizeva spatialheterogeneityofcutaneousbloodflowrespiratoryrelatedoscillationsquantifiedvialaserspecklecontrastimaging AT elenapotapova spatialheterogeneityofcutaneousbloodflowrespiratoryrelatedoscillationsquantifiedvialaserspecklecontrastimaging AT viktordremin spatialheterogeneityofcutaneousbloodflowrespiratoryrelatedoscillationsquantifiedvialaserspecklecontrastimaging AT igorkozlov spatialheterogeneityofcutaneousbloodflowrespiratoryrelatedoscillationsquantifiedvialaserspecklecontrastimaging AT andreydunaev spatialheterogeneityofcutaneousbloodflowrespiratoryrelatedoscillationsquantifiedvialaserspecklecontrastimaging
_version_	1718413747778748416

Spatial heterogeneity of cutaneous blood flow respiratory-related oscillations quantified via laser speckle contrast imaging.

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