Dynamic Analysis of Mental Sweating by the Time-Sequential Piled-Up En-Face OCT Images

Masato Ohmi, Yuki Wada, Motomu Tanigawa

Division of Health Sciences, Graduate School of Medicine, Osaka University, Suita City, Japan.

DOI: 10.4236/opj.2013.37A004                

Abstract

In this paper, the dynamic analysis of mental sweating for sound stimulus of a few tens of eccrine sweat glands is performed by the time-sequential piled-up en-face optical coherence tomography (OCT) images with the frame spacing of 3.3 sec. In the experiment, the amount of excess sweat can be evaluated simultaneously for a few tens of sweat glands by piling up of all the en-face OCT images. Strong non-uniformity is observed in mental sweating where the amount of sweat in response to sound stimulus is different for each sweat gland. Furthermore, the amount of sweat is significantly increased in proportion to the strength of the stimulus.

Keywords

Optical Coherence Tomography; En-Face OCT Images; Mental Sweating; Sweat Gland; Sympathetic Nerve

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Puliafito and J. G. Fujimoto, “Optical Coherence Tomography,” Science, Vol. 254, No. 5035, 1991, pp. 1178-1181. http://dx.doi.org/10.1126/science.1957169
[2]	E. A. Swanson, J. A. Izatt, M. R. Hee, D. Huang, C. P. Lin, J. S. Schuman, C. A. Puliafito and J. G. Fujimoto, “In-Vivo Retinal Imaging by Optical Coherence Tomography,” Optics Letters, Vol. 18, No. 21, 1993, pp. 1864-1866. http://dx.doi.org/10.1364/OL.18.001864
[3]	G. J. Tearney, M. E. Brezinski, B. E. Bouma, S. A. Boppart, C. Ptiris, J. F. Southern and J. G. Fujimoto, “In Vivo Endoscopic Optical Biopsy with Optical Coherence Tomography,” Science, Vol. 276, No. 5321, 1997, pp. 2037-2039. http://dx.doi.org/10.1126/science.276.5321.2037
[4]	R. Uma Maheswari, H. Takaoka, R. Homma, H. Kadono and M. Tanifuji, “Implementation of Optical Coherence Tomography (OCT) in Visualization of Functional Structures of Cat Visual Cortex,” Optics Communications, Vol. 202, No. 1-3, 2002, pp. 47-54. http://dx.doi.org/10.1016/S0030-4018(02)01079-9
[5]	M. Ohmi, K. Nohara, Y. Ueda, T. Fuji and M. Haruna, “Dynamic Observation of Sweat Glands of Human Finger Tip Using All-Optical-Fiber High-Speed Optical Coherence Tomography,” Japanese Journal of Applied Physics, Vol. 44, No. 26, 2005, pp. L854-L856. http://dx.doi.org/10.1143/JJAP.44.L854
[6]	M. Haruna, T. Fuji, M. Ohmi and N. Hayashi, “In Vivo Dynamic Imaging of Arterioles of Human Fingers Using Optical Coherence Tomography at 1.3 mm,” Japanese Journal of Applied Physics, Vol. 45, No. 33, 2006, pp. L891-L893. http://dx.doi.org/10.1143/JJAP.45.L891
[7]	M. Kuwabara, T. Fuji, M. Ohmi and M. Haruna, “Dynamic Optical Coherence Tomography of Small Arteries and Veins of Human Fingers,” Applied Physics Express, Vol. 1, No. 5, 2008, Article ID: 058001. http://dx.doi.org/10.1143/APEX.1.058001
[8]	M. Ohmi, M. Tanigawa, A. Yamada, Y. Ueda and M. Haruna: “Dynamic Analysis of Internal and External Mental Sweating by Optical Coherence Tomography,” Journal of Biomedical Optics, Vol. 14, No. 1, 2009, Article ID: 014026. http://dx.doi.org/10.1117/1.3079808
[9]	H. Saigusa, Y. Ueda, A. Yamada, M. Ohmi, M. Ohnishi, M. Kuwabara and M. Haruna, “Maximum-Intensity-Projection Imaging for Dynamic Analysis of Mental Sweating by Optical Coherence Tomography,” Applied Physics Express, Vol. 1, No. 9, 2008, Article ID: 098001. http://dx.doi.org/10.1143/APEX.1.098001