Examples Of The Application Of Light-tissue
Interaction To Biomedical Engineering
Author(s)
A. Cysewska-Sobusiak, A. Hulewicz, Z. Krawiecki
& G. Wiczynski
Abstract
The subject of this paper relates to the measurable effects of light behavior in
biological materials. The problems considered include some current topics
concerning the achievements and still ongoing development in the selected fields
of light-tissue interaction to be used in biomedical measurements. Measurable
effects of interaction between light and tissues may be utilized in biomedicine
with emission, reflection or transmission modes, respectively. The latter is
especially considered in this paper: transillumination as the method of
examination by the passage of light through tissues or a body cavity is a
diagnostic technique in the course of intensive development at the moment. Red
light and near-infrared radiation emitted by high-efficient LEDs can be noninvasively
transmitted through the blood-supplied tissues. Some representative
examples of the medical applications of non-invasive effects of light-tissue
interaction are discussed. Under the transillumination and illumination from
underneath, it is possible to diagnose and monitor the parameters of tissues and
organs examined. This paper includes discussion of selected issues related to the
biophysical and optical phenomena used and examples of practical applications
of tissue transillumination techniques. The authors briefly report the current
state-in-the-art and also present their own results. Among other things, the
presented examples include: optoelectronic techniques used in monitoring of
living tissue vitality, and promising results obtained during preliminary
experiments with transillumination scanning applied to fingers of the human
hand.
Keywords: biomedical optics, light-tissue interaction, optoelectronic sensors,
noninvasive biomeasurements, medical imaging.
Keywords
biomedical optics, light-tissue interaction, optoelectronic sensors,
noninvasive biomeasurements, medical imaging
Related Book
Other papers in this volume
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