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Proceedings Paper

Measurements of changes in transmission spectra of human venous blood as a method for control of low-intensity He-Ne laser biomedical effect
Author(s): Vladimir P. Minkovich; Alexei V. Marochkov; Pavel V. Minkovich
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Paper Abstract

We report experimental evidence of light-induced changes in the transmission spectrum of human venous blood under the action of low-intensity radiation from He-Ne laser. We have applied a sensitive registration technique and the transmission spectra of diluted and nondiluted heparinized human venous blood have been analyzed before, after and in the course of irradiation. When irradiating nondiluted blood, reproducible variations of the blood transmission spectrum in the range of 640 - 805 nm have been observed for the first time. We found these changes correlate with oxygen saturation. The changes in transmission spectra and oxygen saturation of venous blood after 1-3 procedures of irradiation can be used as a method to detect an individual sensitivity to intravenous laser irradiation.

Paper Details

Date Published: 14 February 2005
PDF: 6 pages
Proc. SPIE 5776, Eighth International Symposium on Laser Metrology, (14 February 2005); doi: 10.1117/12.611775
Show Author Affiliations
Vladimir P. Minkovich, Ctr. de Investigaciones en Optica, A.C. (Mexico)
Alexei V. Marochkov, Central Regional Hospital (Belarus)
Pavel V. Minkovich, Medical State Univ. of Minsk (Belarus)

Published in SPIE Proceedings Vol. 5776:
Eighth International Symposium on Laser Metrology
R. Rodriguez-Vera; F. Mendoza-Santoyo, Editor(s)

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