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Proceedings Paper

Optical systems for noninvasive cardiovascular biosensing
Author(s): R. Erts; J. Spigulis; M. Ozols
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Paper Abstract

Three portable prototype devices for cardiovascular biosensing based on reflection-type photoplethysmography (PPG) principle have been designed and clinically tested. The single-channel PPG finger sensor provides real-time measurements with fast calculation of the mean single-period PPG signal shape ("cardiovascular fingerprint", potentially useful for recognition). The dual-channel PPG system gives additional possibility to monitor on-line the arterial pulse wave transit time and its responses to physical exercises. The four-channel PPG system proved to be applicable for fast detection of cardiovascular pathologies, e.g. arterial occlusions in extremities. Design principles and software algorithms of the regarded devices will be discussed, as well as the results of recent clinical tests.

Paper Details

Date Published: 15 September 2005
PDF: 7 pages
Proc. SPIE 5908, Optical Information Systems III, 59080J (15 September 2005); doi: 10.1117/12.616297
Show Author Affiliations
R. Erts, Univ. of Latvia (Latvia)
J. Spigulis, Univ. of Latvia (Latvia)
M. Ozols, Univ. of Latvia (Latvia)


Published in SPIE Proceedings Vol. 5908:
Optical Information Systems III
Bahram Javidi; Demetri Psaltis, Editor(s)

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