In vivo experimental study of optical characteristics of human acupuncture points

  • Yimei Huang
  • Hongqin Yang
  • Yuhua Wang
  • Shusen Xie
  • Zhouyi Guo
  • Songhao Liu
Research Article
  • 48 Downloads

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.

Keywords

effective attenuation coefficient diffuse reflectance spectrum acupuncture point oxy-hemoglobin brachial artery 

References

  1. 1.
    Cheng X N. Chinese Acupuncture and Moxibustion. Beijing: Foreign Language Press, 1999Google Scholar
  2. 2.
    NIH Consensus Statement. Acupuncture. Bethesda: National Institute of Health, 1997, 15: 1–134Google Scholar
  3. 3.
    Ueda Y, Hayashi K, Kuriowa K. The application of fMRI to basic experiments in acupuncture. The effects of stimulus points and content on cerebral activities and responses. IEEE Engineering in Medicine and Biology Magazine, 2005, 24(2): 47–51CrossRefGoogle Scholar
  4. 4.
    Tsuei J J. The science of acupuncture-theory and practice. IEEE Engineering in Medicine and Biology Magazine, 1996, 15(3): 52–57CrossRefGoogle Scholar
  5. 5.
    Lu W A, Tsuei J J, Chen K G. Preferential direction and symmetry of electric conduction of human meridians. Bilaterally symmetrical acupoints provide better conductance for a better “connection”. IEEE Engineering in Medicine and Biology Magazine, 1999, 18(1): 76–78CrossRefGoogle Scholar
  6. 6.
    Johng HM, Cho J H, Shin H S, Soh K S, Koo T H, Choi S Y, Koo H S, Park M S. Frequency dependence of impedances at the acupuncture point Quze (PC3). IEEE Engineering in Medicine and Biology Magazine, 2002, 21(2): 33–36CrossRefGoogle Scholar
  7. 7.
    Liu T C Y, Liu S H, Hu X L. Time theory on meridian: I. Acupuncture research. Journal of South China Normal University (Natural Science), 1998, (1): 40–45 (in Chinese)Google Scholar
  8. 8.
    Shen X Y, Wei J Z, Zhang Y H, Ding G H, Wang C H, Zhang H M, Zhou Y, Wang T. Study on volt-ampere (V-A) characteristics of human acupoints. Chinese Acupuncture and Moxibustion, 2006, 26(4): 267–271 (in Chinese)Google Scholar
  9. 9.
    Hu X L, Wang P Q, Xu J S, Wu B H, Xu X Y. The main characteristics of infrared radiant track along meridian coursed over human body surface and the condition of its appearance. Journal of Infrared and Millimeter Waves, 2001, 20(5): 325–328 (in Chinese)Google Scholar
  10. 10.
    Zheng L Y, Zhang D Y, Zhen X C, Wu C J, Cao F Y. A discussion on the relation between high sound-conducting state of meridian courses and the histological structure of fascia. Shanghai Journal of Acupuncture and Moxibustion, 2003, 22(9): 21–22 (in Chinese)Google Scholar
  11. 11.
    Choi C H, Soh K S, Lee S M, Yoon G W. Study of propagation of light along an acupuncture meridian. Journal of the Optical Society of Korea, 2003, 7(4): 245–247CrossRefGoogle Scholar
  12. 12.
    Yang H Q, Xie S S, Liu S H, Li H, Guo Z Y. Differences in optical transport properties between human meridian and non-meridian. American Journal of Chinese Medicine, 2007, 35(5): 743–752CrossRefGoogle Scholar
  13. 13.
    Wang Y H, Yang H Q, Xie S S, Li H. Experimental measurement of the propagation characteristics of 633 nm laser radiation along pericardium meridian. Journal of Optoelectronics · Laser, 2007, 18(9): 1132–1134 (in Chinese)Google Scholar
  14. 14.
    Xie S S, Yang H Q, Guo Z Y, Li H, Liu S H. Optically noninvasive measurement of the light transport properties of human meridians. Chinese Optics Letters, 2008, 6(12): 928–931CrossRefGoogle Scholar
  15. 15.
    Zhong H Q, Zhang Z D, Guo Z Y, Wei H J, Yang H Q, He Y H, Xie S S, Liu S H. Using OCT image to distinguish human acupoint from non-acupoint tissues after irradiation with laser in vivo: a pilot study. Chinese Optics Letters, 2010, 8(4): 418–420Google Scholar
  16. 16.
    Luo L P, Shen Z Y, Chen H P, Yu P. Regulating effect of acupuncture at Neiguan-Jianshi on the cardiac autonomic nerve in healthy persons. Shanghai Journal of Acupuncture and Moxibustion, 2009, 28(10): 603–606 (in Chinese)Google Scholar
  17. 17.
    Farrell T J, Patterson M S, Wilson B. A diffusion theory model of spatially resolved, steady-state diffuse reflectance for the noninvasive determination of tissue optical properties in vivo. Medical Physics, 1992, 19(4): 879–888CrossRefGoogle Scholar
  18. 18.
    Wang L H, Wu H I. Biomedical Optics Principles and Imaging. New Jersey: John Wiley & Sons, Inc., 2007, 6–7Google Scholar

Copyright information

© Higher Education Press and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Yimei Huang
    • 1
  • Hongqin Yang
    • 1
  • Yuhua Wang
    • 1
  • Shusen Xie
    • 1
  • Zhouyi Guo
    • 2
  • Songhao Liu
    • 2
  1. 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 TechnologyFujian Normal UniversityFuzhouChina
  2. 2.Laboratory of Photonic Traditional Chinese Medicine and Key Laboratory of Laser Life Science of Ministry of EducationSouth China Normal UniversityGuangzhouChina

Personalised recommendations