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2009, Number 1

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Rev Mex Ing Biomed 2009; 30 (1)

Optical absorption coefficients of biological tissues obtained by photoacoustic spectroscopy

Lomelí-Mejía P, Alanis-Carbajal J, Cruz-Orea A, Jiménez-Pérez JL

Language: English
References: 18
Page: 13-17
PDF size: 189.64 Kb.


ABSTRACT

The knowledge of the optical absorption coefficient of biological tissues is very important when a light source has to be chosen in some therapies, as in the case of photodynamic therapy, or in a surgery in which a laser equipment is used, for example in ophthalmology or plastic surgery. In these cases, it is important to take the optical properties of the tissues into account; these properties can also depend on other parameters such as water content, colour and thickness, among others. In this article, an application of photoacoustic spectroscopy to obtain the optical absorption coefficient of rat, dog and rabbit skins is presented. The knowledge of these coefficients makes possible to select the most suitable wavelength to a specific medical application.


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