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Proceedings Paper

3D Monte Carlo simulation of light propagation for laser acupuncture and optimization of illumination parameters
Author(s): Fulin Zhong; Ting Li; Boan Pan; Pengbo Wang
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Paper Abstract

Laser acupuncture is an effective photochemical and nonthermal stimulation of traditional acupuncture points with lowintensity laser irradiation, which is advantageous in painless, sterile, and safe compared to traditional acupuncture. Laser diode (LD) provides single wavelength and relatively-higher power light for phototherapy. The quantitative effect of illumination parameters of LD in use of laser acupuncture is crucial for practical operation of laser acupuncture. However, this issue is not fully demonstrated, especially since experimental methodologies with animals or human are pretty hard to address to this issue. For example, in order to protect viability of cells and tissue, and get better therapeutic effect, it’s necessary to control the output power varied at 5mW~10mW range, while the optimized power is still not clear. This study aimed to quantitatively optimize the laser output power, wavelength, and irradiation direction with highly realistic modeling of light transport in acupunctured tissue. A Monte Carlo Simulation software for 3D vowelized media and the highest-precision human anatomical model Visible Chinese Human (VCH) were employed. Our 3D simulation results showed that longer wavelength/higher illumination power, larger absorption in laser acupuncture; the vertical direction emission of the acupuncture laser results in higher amount of light absorption in both the acupunctured voxel of tissue and muscle layer. Our 3D light distribution of laser acupuncture within VCH tissue model is potential to be used in optimization and real time guidance in clinical manipulation of laser acupuncture.

Paper Details

Date Published: 17 February 2017
PDF: 7 pages
Proc. SPIE 10048, Mechanisms of Photobiomodulation Therapy XII, 100480H (17 February 2017); doi: 10.1117/12.2251312
Show Author Affiliations
Fulin Zhong, Univ. of Electronic Science and Technology of China (China)
Ting Li, Univ. of Electronic Science and Technology of China (China)
Boan Pan, Univ. of Electronic Science and Technology of China (China)
Pengbo Wang, Univ. of Electronic Science and Technology of China (China)

Published in SPIE Proceedings Vol. 10048:
Mechanisms of Photobiomodulation Therapy XII
Michael R. Hamblin; James D. Carroll; Praveen Arany, Editor(s)

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