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

Daisuke Yamamoto, Shoko Kuroda, Eiji Okada

    研究成果: Conference contribution

    抜粋

    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.

    元の言語English
    ホスト出版物のタイトルEuropean Conference on Biomedical Optics, ECBO 2007
    出版者Optical Society of America
    ISBN(印刷物)9780819467713
    出版物ステータスPublished - 2007 1 1
    イベントEuropean Conference on Biomedical Optics, ECBO 2007 - Munich, Germany
    継続期間: 2007 6 172007 6 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
    Germany
    Munich
    期間07/6/1707/6/17

    ASJC Scopus subject areas

    • Instrumentation
    • Atomic and Molecular Physics, and Optics

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  • これを引用

    Yamamoto, D., Kuroda, S., & Okada, E. (2007). Modeling of influence of frontal sinus on NIRS signal of brain activation. : European Conference on Biomedical Optics, ECBO 2007 (Optics InfoBase Conference Papers). Optical Society of America.