Analysis of light propagation in adult head model by direct hybrid Monte Carlo-diffusion method

Yosuke Ogoshi, Toshiyuki Hayashi, Yuichi Fukui, Eiji Okada

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

    Abstract

    The development of a model to calculate light propagation in the head is essential for brain function measurement by near- infrared spectroscopy and imaging. The light propagation in the head is affected by lon- scattering cerebrospinal fluid layer surrounding the brain although the diffusion equation is no longer valid in non- or low-scattering regions. In this study, the light propagation in a circle model and realistic head model is calculated by the direct hybrid Monte Carlo-diffusion method (DHMDM). The light propagation in the highly scattering medium is calculated by the diffusion theory and that in the low-scattering CSF is predicted by Monte Carlo method. The results by the DHMDM are validated by those by Monte Carlo simulation. The results for the circle and realistic head models suggest that non-smoothness of the CSF boundary affects the light propagation in the brain.

    Original languageEnglish
    Title of host publicationAPBME 2003 - IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages316-317
    Number of pages2
    ISBN (Print)0780379438, 9780780379435
    DOIs
    Publication statusPublished - 2003
    EventIEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003, APBME 2003 - Kyoto-Osaka-Nara, Japan
    Duration: 2003 Oct 202003 Oct 22

    Other

    OtherIEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003, APBME 2003
    CountryJapan
    CityKyoto-Osaka-Nara
    Period03/10/2003/10/22

    Keywords

    • Finite element method
    • Monte Carlo simulation
    • Near infrared spectroscopy
    • Photon migration

    ASJC Scopus subject areas

    • Biomedical Engineering

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  • Cite this

    Ogoshi, Y., Hayashi, T., Fukui, Y., & Okada, E. (2003). Analysis of light propagation in adult head model by direct hybrid Monte Carlo-diffusion method. In APBME 2003 - IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003 (pp. 316-317). [1302711] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APBME.2003.1302711