Artery Research

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Volume 26, Issue Supplement 1, December 2020, Pages S68 - S68

P.45 Characterization of the Microcirculatory Response to Gravity-Induced Changes using Thermal Imaging

Authors
Noam Moyal1, *, Noa Darchi1, Oshrit Hoffer2, Neta Rabin3, Benjamin Gavish4, Moshe Halak5, Zehava Ovadia-Blechman1
1School of Medical Engineering, Afeka Tel-Aviv Academic College of Engineering
2School of Electrical Engineering, Afeka Tel-Aviv Academic College of Engineering
3Department of Industrial Engineering, Tel-Aviv University
4Yazmonit ltd
5Department of Vascular Surgery, Sheba Medical Center
*Corresponding author. Email: noammoyal10@gmail.com
Corresponding Author
Noam Moyal
Available Online 31 December 2020.
DOI
10.2991/artres.k.201209.057How to use a DOI?
Keywords
Blood flow; gravitational effect; thermal imaging
Abstract

Objective: The goal of this study was to characterize the changes in the palm’s blood distribution in response to a decrease in blood pressure due to gravity-induced changes, using thermal imaging.

Methods: Thermal hands images were taken from ten healthy volunteers, without any known vascular pathologies, in three different stages: baseline, gravitation and recovery. In the baseline stage the hand was set on a table, at heart height. During the gravitation stage one hand was placed 40 cm above the table for 10 minutes, while the second hand was stayed on the table. The recovery stage, in which both hands were placed back on the table, was recorded for 10 minutes. Thermal images of both hands were taken every ten seconds throughout the experiment.

Results: Mean skin temperatures were increased during hand elevating in both the palm center and the distal phalanx of the middle finger by 2.57°C and 3.33°C, respectively. This increase was significant and remained high during the recovery period (p < 0.01). A similar effect was also observed with the other hand, which remained on the table.

Conclusions: The temperature increase of the palm during gravity conditions reflects blood perfusion compensation due to high local oxygen consumption during decrease in local blood pressure. The bilateral effect indicates the central nervous system involvement. Thermal imaging allows characterization of the palm’s blood distribution under gravitational conditions. Since this technique is noncontact and safe, it could be useful for assessment of blood supply during physical effort.

Copyright
© 2020 Association for Research into Arterial Structure and Physiology. Publishing services by Atlantis Press International B.V.
Open Access
This is an open access article distributed under the CC BY-NC 4.0 license (http://creativecommons.org/licenses/by-nc/4.0/).

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Journal
Artery Research
Volume-Issue
26 - Supplement 1
Pages
S68 - S68
Publication Date
2020/12/31
ISSN (Online)
1876-4401
ISSN (Print)
1872-9312
DOI
10.2991/artres.k.201209.057How to use a DOI?
Copyright
© 2020 Association for Research into Arterial Structure and Physiology. Publishing services by Atlantis Press International B.V.
Open Access
This is an open access article distributed under the CC BY-NC 4.0 license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - JOUR
AU  - Noam Moyal
AU  - Noa Darchi
AU  - Oshrit Hoffer
AU  - Neta Rabin
AU  - Benjamin Gavish
AU  - Moshe Halak
AU  - Zehava Ovadia-Blechman
PY  - 2020
DA  - 2020/12/31
TI  - P.45 Characterization of the Microcirculatory Response to Gravity-Induced Changes using Thermal Imaging
JO  - Artery Research
SP  - S68
EP  - S68
VL  - 26
IS  - Supplement 1
SN  - 1876-4401
UR  - https://doi.org/10.2991/artres.k.201209.057
DO  - 10.2991/artres.k.201209.057
ID  - Moyal2020
ER  -