Validation of CW-Light Penetration Based on Fat Layer Variation in Human Skin Model using Monte Carlo Method

摘要

Light propagation inside the tissue multilayers has been an issue because of the variation of thickness subcutaneous fat layer. Monte Carlo simulation was studied since it is as gold standard and consists in computational simulation of that chain and in constructing statistical estimates of the desired functional. Four layers of 3-D was quantitatively investigated the relationship between variation thickness of subcutaneous fat layer and measurement of muscle oxygenation using near infrared spectroscopy. The scattering coefficient, absorption coefficient, refractive index and anisotropy factor of each layer were found in the literature. All parameters could be estimated with having different of absorbance less than (2 a.u) for fat thickness 1 mm and 2 mm of human skin in the visible part of the spectrum at 600nm and 900nm. Thus, this result may help us to prove that our human muscle is transparent to this visible and especially near infrared region and might be useful tool for muscle activation studies in the future.