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In vivo experimental study of optical characteristics of human acupuncture points |
Yimei HUANG1, Hongqin YANG1, Yuhua WANG1, Shusen XIE1( ), Zhouyi GUO2, Songhao LIU2 |
| 1. Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonic Technology, Institute of Laser and Optoelectronics Technology, Fujian Normal University, Fuzhou 350007, China; 2. Laboratory of Photonic Traditional Chinese Medicine and Key Laboratory of Laser Life Science of Ministry of Education, South China Normal University, Guangzhou 510631, China |
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Abstract Effective attenuation coefficients and diffuse reflectance spectra of acupuncture point and non-acupuncture point were measured in vivo before and after the brachial artery was constricted with a sphygmomanometer. Experimental results showed that the effective attenuation coefficient of acupuncture point was smaller than that of non-acupuncture point. When the brachial artery was constricted, the effective attenuation coefficients of acupuncture point and non-acupuncture point increased. Furthermore, the increasing amplitude of effective attenuation coefficient of acupuncture point was smaller than that of the non-acupuncture point. Diffuse reflectance of acupuncture point was lower than that of non-acupuncture point within the wavelength range of 470 to 600 nm. Both the diffuse reflectance of acupuncture point and non-acupuncture point decreased after the brachial artery was constricted. These experimental results indicated that the optical characteristics of acupuncture point tissues were correlated with the physiologic changes. Therefore, these optical characteristics of acupuncture points would be helpful to study the mechanism of acupuncture meridian.
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| Keywords
effective attenuation coefficient
diffuse reflectance spectrum
acupuncture point
oxy-hemoglobin
brachial artery
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Corresponding Author(s):
XIE Shusen,Email:ssxie@fjnu.edu.cn
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Issue Date: 05 June 2011
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