
Proceedings Paper
Spectroscopic technique with wide range of wavelength information improves near-infrared spectroscopyFormat | Member Price | Non-Member Price |
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Paper Abstract
Near-infrared spectroscopy (NIRS) calculates hemoglobin parameters, such as oxygenated hemoglobin (oxyHb) and
deoxygenated hemoglobin (deoxyHb) using the near-infrared light around the wavelength of 800nm. This is based on
the modified-Lambert-Beer's law that changes in absorbance are proportional to changes in hemoglobin parameters.
Many conventional measurement methods uses only a few wavelengths, however, in this research, basic examination of
NIRS measurement was approached by acquiring wide range of wavelength information. Venous occlusion test was
performed by using the blood pressure cuff around the upper arm. Pressure of 100mmHg was then applied for about 3
minutes. During the venous occlusion, the spectrum of the lower arm muscles was measured every 15 seconds, within
the range of 600 to 1100nm. It was found that other wavelength bands hold information correlating to this venous
occlusion task. Technique of improving the performance of NIRS measurement using the Spectroscopic Method is very
important for Brain science.
Paper Details
Date Published: 12 February 2009
PDF: 8 pages
Proc. SPIE 7174, Optical Tomography and Spectroscopy of Tissue VIII, 717409 (12 February 2009); doi: 10.1117/12.809177
Published in SPIE Proceedings Vol. 7174:
Optical Tomography and Spectroscopy of Tissue VIII
Bruce J. Tromberg; Arjun G. Yodh; Mamoru Tamura; Eva M. Sevick-Muraca; Robert R. Alfano, Editor(s)
PDF: 8 pages
Proc. SPIE 7174, Optical Tomography and Spectroscopy of Tissue VIII, 717409 (12 February 2009); doi: 10.1117/12.809177
Show Author Affiliations
Hideo Eda, The Graduate School for the Creation of New Photonics Industries (Japan)
Photonics Innovations Co. Ltd. (Japan)
Hiromichi Aoki, The Graduate School for the Creation of New Photonics Industries (Japan)
Photonics Innovations Co. Ltd. (Japan)
Hiromichi Aoki, The Graduate School for the Creation of New Photonics Industries (Japan)
Shigeru Eura, The Graduate School for the Creation of New Photonics Industries (Japan)
Kazutoshi Ebe, Toyota Central Research and Development Labs., Inc. (Japan)
Kazutoshi Ebe, Toyota Central Research and Development Labs., Inc. (Japan)
Published in SPIE Proceedings Vol. 7174:
Optical Tomography and Spectroscopy of Tissue VIII
Bruce J. Tromberg; Arjun G. Yodh; Mamoru Tamura; Eva M. Sevick-Muraca; Robert R. Alfano, Editor(s)
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