Using the optical coherence tomography (OCT) images, the optical attenuation coefficients (μt) of human Laogong acupoint and non-acupoint tissues are measured after empty irradiation and 808-nm 100-mW irradiation for 10 min in vivo non-invasively. The results show that there is no significant difference of μt of Laogong acupoint and non-acupoint tissues after empty irradiation. However, there are significant differences of μt between Laogong acupoint and non-acupoint tissues after laser irradiation at the power of 100 mW (statistical definition of probability p < 0.01). The results of the pilot study indicate that the OCT could distinguish the acupoint from the surrounding tissues after irradiation with laser in vivo non-invasively.
© 2010 Chinese Optics Letters
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(170.6930) Medical optics and biotechnology : Tissue
(170.6935) Medical optics and biotechnology : Tissue characterization
Huiqing Zhong, Zude Zhang, Zhouyi Guo, Huajiang Wei, Hongqin Yang, Yonghong He, Shusen Xie, and Songhao Liu, "Using OCT image to distinguish human acupoint from non-acupoint tissues after irradiation with laser in vivo:a pilot study," Chin. Opt. Lett. 8, 418-420 (2010)