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  1. 原著論文

Validation of Practical Diffusion Approximation for Virtual Near Infrared Spectroscopy Using a Digital Head Phantom

https://repo.qst.go.jp/records/45544
https://repo.qst.go.jp/records/45544
203b9354-bf6e-4281-b4d2-d5f0e1a97582
Item type 学術雑誌論文 / Journal Article(1)
公開日 2009-06-18
タイトル
タイトル Validation of Practical Diffusion Approximation for Virtual Near Infrared Spectroscopy Using a Digital Head Phantom
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
アクセス権
アクセス権 metadata only access
アクセス権URI http://purl.org/coar/access_right/c_14cb
著者 Oki, Yosuke

× Oki, Yosuke

WEKO 452561

Oki, Yosuke

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Kawaguchi, Hiroshi

× Kawaguchi, Hiroshi

WEKO 452562

Kawaguchi, Hiroshi

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Okada, Eiji

× Okada, Eiji

WEKO 452563

Okada, Eiji

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川口 拓之

× 川口 拓之

WEKO 452564

en 川口 拓之

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抄録
内容記述タイプ Abstract
内容記述 Light propagation in the digital head phantom for virtual near infrared spectroscopy and imaging is calculated by diffusion theory. In theory, diffusion approximation is not valid in a low-scattering cerebrospinal fluid (CSF) layer around the brain. The optical path length and spatial sensitivity profile predicted by the finite element method based upon the diffusion theory are compared with those predicted by the Monte Carlo method to validate a practical implementation of diffusion approximation to light propagation in an adult head. The transport scattering coefficient of the CSF layer is varied from 0.01 to 1.0 mm-1 to evaluate the influence of that layer on the error caused by diffusion approximation. The error is practically ignored and the geometry of the brain surface such as the sulcus structure in the digital head phantom scarcely affects the error when the transport scattering coefficient of the CSF layer is greater than 0.3 mm-1.
書誌情報 Optical Review

巻 16, 号 2, p. 153-159, 発行日 2009
ISSN
収録物識別子タイプ ISSN
収録物識別子 1340-6000
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