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Proceedings Paper

Contact probe pressure effects in skin multi-spectral photoplethysmography
Author(s): Janis Spigulis; Lasma Gailite; Renars Erts; Alexey Lihachev
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Paper Abstract

A novel technique ensuring parallel recording of reflection photoplethysmography signals in broad spectral range has been tested for assessment of pressure-induced vascular changes at various depths from the skin surface. PPG signals have been simultaneously detected at three combinations of the cw laser wavelengths 405 nm, 532 nm, 645 nm, 807 nm and 1064 nm. The PPG baseline responses to the probe-skin contact pressure changes and shapes of the PPG pulses originated from the same heartbeat but recorded at different wavelengths have been detected and analyzed.

Paper Details

Date Published: 11 July 2007
PDF: 8 pages
Proc. SPIE 6628, Diagnostic Optical Spectroscopy in Biomedicine IV, 66281F (11 July 2007); doi: 10.1117/12.727985
Show Author Affiliations
Janis Spigulis, Univ. of Latvia (Latvia)
Lasma Gailite, Univ. of Latvia (Latvia)
Renars Erts, Univ. of Latvia (Latvia)
Alexey Lihachev, Univ. of Latvia (Latvia)

Published in SPIE Proceedings Vol. 6628:
Diagnostic Optical Spectroscopy in Biomedicine IV
Dietrich Schweitzer; Maryann Fitzmaurice, Editor(s)

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