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Proceedings Paper

Micro-circulation of skin blood: optical monitoring by advanced photoplethysmography techniques
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Paper Abstract

Blood micro-circulation in upper skin layers has been studied experimentally in real time by advanced two-channel photoplethysmography (PPG) techniques. The blood volume changes caused by micro-vessel expansion and dilution during the cardiac cycles have been detected by infrared optical contact sensors. A newly developed portable monitoring device comprising a lap-top computer was used for accumulation and processing of the bio-signals. Shapes of the PPG signals detected at different sites of the body were compared with these obtained by computer modeling.

Paper Details

Date Published: 18 April 2003
PDF: 7 pages
Proc. SPIE 5119, Bioengineered and Bioinspired Systems, (18 April 2003); doi: 10.1117/12.498725
Show Author Affiliations
Janis Spigulis, Univ. of Latvia (Latvia)
Renars Erts, Univ. of Latvia (Latvia)
Uldis Rubins, Univ. of Latvia (Latvia)


Published in SPIE Proceedings Vol. 5119:
Bioengineered and Bioinspired Systems
Angel Rodriguez-Vazquez; Derek Abbott; Ricardo Carmona, Editor(s)

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