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

Yosuke Ogoshi; Toshiyuki Hayashi; Yuichi Fukui; Eiji Okada

doi:10.1109/APBME.2003.1302711

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 proceeding › Conference 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head is affected by lon- scattering cerebrospinal fluid layer surrounding the brain although the diffusion equation is no longer valid in non- or low-scattering regions.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 language	English
Title of host publication	APBME 2003 - IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	316-317
Number of pages	2
ISBN (Print)	0780379438, 9780780379435
DOIs	https://doi.org/10.1109/APBME.2003.1302711
Publication status	Published - 2003
Event	IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003, APBME 2003 - Kyoto-Osaka-Nara, Japan Duration: 2003 Oct 20 → 2003 Oct 22

Other

Other	IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003, APBME 2003
Country/Territory	Japan
City	Kyoto-Osaka-Nara
Period	03/10/20 → 03/10/22

Keywords

Finite element method
Monte Carlo simulation
Near infrared spectroscopy
Photon migration

ASJC Scopus subject areas

Biomedical Engineering

Access to Document

10.1109/APBME.2003.1302711

Cite this

Analysis of light propagation in adult head model by direct hybrid Monte Carlo-diffusion method. / Ogoshi, Yosuke; Hayashi, Toshiyuki; Fukui, Yuichi et al.
APBME 2003 - IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003. Institute of Electrical and Electronics Engineers Inc., 2003. p. 316-317 1302711.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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., 1302711, Institute of Electrical and Electronics Engineers Inc., pp. 316-317, IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003, APBME 2003, Kyoto-Osaka-Nara, Japan, 03/10/20. https://doi.org/10.1109/APBME.2003.1302711

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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.",

keywords = "Finite element method, Monte Carlo simulation, Near infrared spectroscopy, Photon migration",

author = "Yosuke Ogoshi and Toshiyuki Hayashi and Yuichi Fukui and Eiji Okada",

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AU - Ogoshi, Yosuke

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AU - Fukui, Yuichi

AU - Okada, Eiji

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Y1 - 2003

N2 - 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.

AB - 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.

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KW - Monte Carlo simulation

KW - Near infrared spectroscopy

KW - Photon migration

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

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Keywords

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