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

Yosuke Ogoshi, Toshiyuki Hayashi, Yuichi Fukui, Eiji Okada

    研究成果: Conference contribution

    抄録

    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head is affected by lon- scattering cerebrospinal fluid layer surrounding the brain although the diffusion equation is no longer valid in non- or low-scattering regions.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.

    本文言語English
    ホスト出版物のタイトルAPBME 2003 - IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003
    出版社Institute of Electrical and Electronics Engineers Inc.
    ページ316-317
    ページ数2
    ISBN(印刷版)0780379438, 9780780379435
    DOI
    出版ステータスPublished - 2003
    イベントIEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003, APBME 2003 - Kyoto-Osaka-Nara, Japan
    継続期間: 2003 10 202003 10 22

    Other

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

    ASJC Scopus subject areas

    • 生体医工学

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