title: [Comparative study of time-correlated temperature and back-scattered light intensity for human Hegu acupoint and non-acupoint tissue irradiated by near-infrared laser].
abstract: Characteristics and differences of temperature and back-scattered light intensity in different depths of 0.2, 0.4, 0.6, 0.8 and 1 mm for both human Hegu acupoint and non-acupoint tissue irradiated by 808 nm diode laser at the different power of 15, 25 and 35 mW were studied. The temperature and the back-scattered light intensity in different depths of 0.2, 0.4, 0.6, 0.8 and 1 mm for human Hegu acupoint and non-acupoint tissue were measured by using the infrared thermography and optical coherence tomography. The result shows few differences in the temperature and the back-scattered light intensity of human Hegu acupoint and non-acupoint tissue before irradiation. The temperature and back-scattered light intensity of Hegu acupoint and the non-acupoint after irradiation were significantly higher, and the temperature and back-scattered light intensity of Hegu acupoint significantly were higher than the non-acupoint areas. At 0-40 min after the irradiation, the temperature and back-scattered light intensity of Hegu acupoint and the non-acupoint area will fluctuate and gradually decrease with the passage of time. From the results above, it is clearly seen that Hegu acupoint is different from non-acupoint both in the back-scattered light intensity and temperature after irradiation, and Hegu acupoint is more sensitive to laser irradiation than non-acupoint tissue.
authors.affiliation: MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China. zfscnu0000@163.com
authors.forename: Fang
authors.initials: F
authors.lastname: Zhou
authors.forename: Hua-Jiang
authors.initials: HJ
authors.lastname: Wei
authors.forename: Zhou-Yi
authors.initials: ZY
authors.lastname: Guo
authors.forename: Ang
authors.initials: A
authors.lastname: Li
authors.forename: Ning-Ning
authors.initials: NN
authors.lastname: Yang
authors.forename: Hong-Qin
authors.initials: HQ
authors.lastname: Yang
authors.forename: Shu-Sen
authors.initials: SS
authors.lastname: Xie
mesh_terms: D015669:Acupuncture Points; D006801:Humans; D008027:Light; D012542:Scattering, Radiation; D013696:Temperature; D041623:Tomography, Optical Coherence