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Proceedings Paper

Multi-wavelength photoplethysmography for simultaneous recording of skin blood pulsations at different vascular depths
Author(s): Janis Spigulis; Lasma Gailite; Alexey Lihachev
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Paper Abstract

Parallel recording of reflection photoplethysmography (PPG) signals in broad spectral band has been performed, and potential of this approach for assessment of blood microcirculation at various vascular depths is discussed. PPG signals have been simultaneously detected at cw laser wavelengths sets comprising 405 nm, 532 nm, 645 nm, 807 nm and 1064 nm. Different signal baseline responses to breath holding at different wavelengths have been observed, as well as different shapes of the PPG pulses originated from the same heartbeat.

Paper Details

Date Published: 6 February 2007
PDF: 6 pages
Proc. SPIE 6430, Advanced Biomedical and Clinical Diagnostic Systems V, 64301I (6 February 2007); doi: 10.1117/12.724071
Show Author Affiliations
Janis Spigulis, Univ. of Latvia (Latvia)
Lasma Gailite, Univ. of Latvia (Latvia)
Alexey Lihachev, Univ. of Latvia (Latvia)

Published in SPIE Proceedings Vol. 6430:
Advanced Biomedical and Clinical Diagnostic Systems V
Ramesh Raghavachari; Tuan Vo-Dinh; Warren S. Grundfest M.D.; David A. Benaron M.D.; Gerald E. Cohn, Editor(s)

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