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Proceedings Paper

Living tissue as the optical pulsatile cuvette contributing to arrangement of the measuring system
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Paper Abstract

The subject of the paper concerns utilization of optical properties of a living object in noninvasive sensing of its attributes. The transmission type of light-tissue interaction is considered. Presented quantities express the optical phenomena caused by pulsatile nature of a living tissue set which makes the integral part of the measuring system. Two sets of the optical parameters such as the absorption, scattering and anisotropy coefficient, respectively, represent two-stage light propagation in a living optical medium; light losses are manifested by equivalent components of the optical density. Metrological requirements for reliable acquisition and processing of optical signals to estimate a given parameter of the transilluminated pulsatile object are specified. The transmission variant of pulse oximetry, which is the only optical method for monitoring blood oxygenation without blood drawing, is taken to illustrate more general problems. The achieved results may be useful in modeling effects of light-tissue interaction in order to make it possible to detect a quantitative or qualitative change in the living cuvette composition. As it was shown, 1D modeling can be applicable in noninvasive oximetry. Further studies will be focused on extension of the results to represent events in a living cuvette taking into account its spatial configuration.

Paper Details

Date Published: 14 July 1999
PDF: 10 pages
Proc. SPIE 3820, 11th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, (14 July 1999); doi: 10.1117/12.353089
Show Author Affiliations
Anna Cysewska-Sobusiak, Poznan Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 3820:
11th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Miroslav Hrabovsky; Anton Strba; Waclaw Urbanczyk, Editor(s)

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