Partial optical path length in the scalp in subject-specific head models for multi-distance probe configuration of near infrared spectroscopy

Taku Yanagisawa, Hiroshi Kawaguchi, Takayuki Obata, Eiji Okada

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    In the brain function measurement by near infrared spectroscopy using a multi-distance probe configuration, the ratio of the partial optical path length in the scalp for the long spacing probe pair to that for the short spacing probe pair is important for the calculation to eliminate the scalp component in the signal. Light propagation in the subject specific head models of 45 volunteers was calculated to predict the dependence of the partial optical path length in the scalp and the weighting factor for the multi-distance probe configuration. The weighting factor ranges from 1.0 to 2.3 and increases with the scalp thickness when the scalp thickness is less than 15 mm.

    Original languageEnglish
    Title of host publicationBiomedical Imaging and Sensing Conference
    EditorsToyohiko Yatagai, Yoshihisa Aizu, Osamu Matoba, Yasuhiro Awatsuji, Yuan Luo
    PublisherSPIE
    ISBN (Electronic)9781510619791
    DOIs
    Publication statusPublished - 2018 Jan 1
    EventBiomedical Imaging and Sensing Conference 2018 - Yokohama, Japan
    Duration: 2018 Apr 252018 Apr 27

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    Volume10711
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X

    Other

    OtherBiomedical Imaging and Sensing Conference 2018
    CountryJapan
    CityYokohama
    Period18/4/2518/4/27

    Keywords

    • Near-infrared spectroscopy
    • short spacing probe pair

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering

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  • Cite this

    Yanagisawa, T., Kawaguchi, H., Obata, T., & Okada, E. (2018). Partial optical path length in the scalp in subject-specific head models for multi-distance probe configuration of near infrared spectroscopy. In T. Yatagai, Y. Aizu, O. Matoba, Y. Awatsuji, & Y. Luo (Eds.), Biomedical Imaging and Sensing Conference [107111J] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10711). SPIE. https://doi.org/10.1117/12.2319286