Evaluation of tissue optical properties from light distribution images

Cheng-Lun Tsai; Ming Chang; Jui-Hsiang Hsieh; Yi-Fong Yang; Yi-Sheong Chou

doi:10.1117/12.388085

13 June 2000 Evaluation of tissue optical properties from light distribution images

Cheng-Lun Tsai, Ming Chang, Jui-Hsiang Hsieh, Yi-Fong Yang, Yi-Sheong Chou

Proceedings Volume 3914, Laser-Tissue Interaction XI: Photochemical, Photothermal, and Photomechanical; (2000) https://doi.org/10.1117/12.388085
Event: BiOS 2000 The International Symposium on Biomedical Optics, 2000, San Jose, CA, United States

Abstract

Images of light distribution in biological soft tissue we used to study the optical characteristics of tissue. The light distribution image was taken under a microscope with light injected through a pinhole close to the edge of the top surface. Images taken on skin, fat, and muscle tissues were compared to study the effect of cellular structure and temperature on the light intensity distribution. Monte Carlo simulation with the same conditions was also performed to simulate the light intensity distribution in tissue for comparison. The anisotropy scattering of light in tissue is affected by the tissue microscopic structure, such as the direction of muscle tissue fibers. The change in optical properties of fat and muscle tissue with temperature was observed. The two-dimensional light distribution images offer more information than general reflectance and transmission measurements. By matching the simulated light intensity distribution with the light distribution image, the optical properties of biological tissue could be estimated. This method might be applied in tissue engineering as an economic way for evaluating the microscopic structure of tissue.

Citation Download Citation

Cheng-Lun Tsai, Ming Chang, Jui-Hsiang Hsieh, Yi-Fong Yang, and Yi-Sheong Chou "Evaluation of tissue optical properties from light distribution images", Proc. SPIE 3914, Laser-Tissue Interaction XI: Photochemical, Photothermal, and Photomechanical, (13 June 2000); https://doi.org/10.1117/12.388085

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KEYWORDS

Tissue optics

Tissues

Monte Carlo methods

Light scattering

Natural surfaces

Skin

Scattering

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