Modeling of influence of frontal sinus on NIRS signal of brain activation

Daisuke Yamamoto, Shoko Kuroda, Eiji Okada

研究成果: Conference contribution

抄録

In the brain activation measurements by near infrared spectroscopy (NIRS), the partial optical path length in the brain, which is an index of the sensitivity of the NIRS signal to the brain activation, is strongly affected by the thickness and the structure of the superficial tissues. In this study, we investigate the influence of the frontal sinus on the NIRS signal of the brain activation. The light propagation in a simplified head model including a void region mimicking the frontal sinus is predicted by Monte Carlo simulation to investigate the influence of the frontal sinus on the partial optical path length in the brain and the mean optical path length in the head. The frontal sinus strongly affects the light propagation in the head. The partial optical path length for small source-detector separation tends to be increased by the presence of the frontal sinus whereas that for large source-detector separation is decreased by the influence of the frontal sinus.

本文言語English
ホスト出版物のタイトルEuropean Conference on Biomedical Optics, ECBO 2007
出版社Optical Society of America (OSA)
ISBN(印刷版)9780819467713
DOI
出版ステータスPublished - 2007 1月 1
イベントEuropean Conference on Biomedical Optics, ECBO 2007 - Munich, Germany
継続期間: 2007 6月 172007 6月 17

出版物シリーズ

名前Optics InfoBase Conference Papers
ISSN(電子版)2162-2701

Other

OtherEuropean Conference on Biomedical Optics, ECBO 2007
国/地域Germany
CityMunich
Period07/6/1707/6/17

ASJC Scopus subject areas

  • 器械工学
  • 原子分子物理学および光学

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