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Laser reflectance oximetry and Doppler flowmetry in assessment of complex physiological parameters of cutaneous blood microcirculation

  • University of Dundee
  • SPE LAZMA Ltd

Research output: Contribution to journalConference articlepeer-review

Abstract

The integration of multiple optical techniques within a single diagnostic device is used to address the difficulties in standardising measurement of cutaneous blood micro-dynamics caused by high variability. We demonstrate the benefits of simultaneous assessment of blood relative volume (Vb), microcirculation index (Im) and tissue oxygen saturation (S tO2), during long-term examination of healthy volunteers. Consequently, five rhythmic components: endothelial, neurogenic, myogenic, breath and heart pulses were established showing high variability up to 30 - 50% as well as in initial parameters around 16%. All rhythmic components were synchronous with some latency between Im and StO 2 in the myogenic component supports the hypothesis of strong correlation between peripheral hemodynamics and oxygen utilisation in tissues.

Original languageEnglish
Article number857205
JournalProceedings of SPIE - International Society for Optical Engineering
Volume8572
DOIs
Publication statusPublished - 22 Mar 2013
EventAdvanced Biomedical and Clinical Diagnostic Systems XI - San Francisco, CA, United States
Duration: 3 Feb 20135 Feb 2013

Keywords

  • bloodflow oscillations
  • laser Doppler flowmetry
  • microcirculation
  • tissue reflectance oximetry
  • variability

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