Respiratory-induced vasoconstriction measured by light transmission and by laser Doppler signal

Eran Shalom; Salman Noach; Youval Slovik; Meir Nitzan

doi:10.1002/jbio.201200097

Respiratory-induced vasoconstriction measured by light transmission and by laser Doppler signal

Eran Shalom, Salman Noach, Youval Slovik, Meir Nitzan

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Changes in finger tissue blood volume (TBV) measured by light transmission and in laser Doppler flow (LDF) were obtained during long breathing (of 12 s period) and associated with the respiratory phases, inspiration and expiration. For fifteen out of sixteen subjects TBV and LDF started to decrease 0-2 s after the start of expiration and increased during inspiration but the start of increase occurred before the start of inspiration, showing that the respiratory-induced changes in TBV and LDF are mainly associated with the expiration. Decrease of TBV and LDF after expiration was also found during the inspiratory gasps.

Original language	English
Pages (from-to)	631-636
Number of pages	6
Journal	Journal of Biophotonics
Volume	6
Issue number	8
DOIs	https://doi.org/10.1002/jbio.201200097
State	Published - 1 Aug 2013
Externally published	Yes

Keywords

Expiration
Inspiration
Laser Doppler flowmetry
Light absorption
Microcirculation
Sympathetic nervous system

ASJC Scopus subject areas

Chemistry (all)
Materials Science (all)
Biochemistry, Genetics and Molecular Biology (all)
Engineering (all)
Physics and Astronomy (all)

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10.1002/jbio.201200097

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title = "Respiratory-induced vasoconstriction measured by light transmission and by laser Doppler signal",

abstract = "Changes in finger tissue blood volume (TBV) measured by light transmission and in laser Doppler flow (LDF) were obtained during long breathing (of 12 s period) and associated with the respiratory phases, inspiration and expiration. For fifteen out of sixteen subjects TBV and LDF started to decrease 0-2 s after the start of expiration and increased during inspiration but the start of increase occurred before the start of inspiration, showing that the respiratory-induced changes in TBV and LDF are mainly associated with the expiration. Decrease of TBV and LDF after expiration was also found during the inspiratory gasps.",

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author = "Eran Shalom and Salman Noach and Youval Slovik and Meir Nitzan",

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AU - Shalom, Eran

AU - Noach, Salman

AU - Slovik, Youval

AU - Nitzan, Meir

PY - 2013/8/1

Y1 - 2013/8/1

N2 - Changes in finger tissue blood volume (TBV) measured by light transmission and in laser Doppler flow (LDF) were obtained during long breathing (of 12 s period) and associated with the respiratory phases, inspiration and expiration. For fifteen out of sixteen subjects TBV and LDF started to decrease 0-2 s after the start of expiration and increased during inspiration but the start of increase occurred before the start of inspiration, showing that the respiratory-induced changes in TBV and LDF are mainly associated with the expiration. Decrease of TBV and LDF after expiration was also found during the inspiratory gasps.

AB - Changes in finger tissue blood volume (TBV) measured by light transmission and in laser Doppler flow (LDF) were obtained during long breathing (of 12 s period) and associated with the respiratory phases, inspiration and expiration. For fifteen out of sixteen subjects TBV and LDF started to decrease 0-2 s after the start of expiration and increased during inspiration but the start of increase occurred before the start of inspiration, showing that the respiratory-induced changes in TBV and LDF are mainly associated with the expiration. Decrease of TBV and LDF after expiration was also found during the inspiratory gasps.

KW - Expiration

KW - Inspiration

KW - Laser Doppler flowmetry

KW - Light absorption

KW - Microcirculation

KW - Sympathetic nervous system

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SN - 1864-063X

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JO - Journal of Biophotonics

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ER -

Respiratory-induced vasoconstriction measured by light transmission and by laser Doppler signal

Abstract

Keywords

ASJC Scopus subject areas

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