publications
論文
原著論文
- Naoto Yamamura, Eiji Okada, Keiichi Nakagawa, and Shu Takagi,
"Monte Carlo simulation of photon transport in a scattering-dominated medium with a refractive index gradient for acoustic light-guiding",
Opt Continuum, 4, 15, pp. 846-859 (2022). - Antoine Capart1, Shunsuke Ikegaya, Eiji Okada, Manabu Machida, and Yoko Hoshi,
"Experimental tests of indicators for the degree of validness of the diffusion approximation",
Journal of Physics Communications, 5, 2, 025012 (17 pages) (2021). - Antoine Capart1, Shunsuke Ikegaya, Eiji Okada, Manabu Machida, and Yoko Hoshi,
"Experimental tests of indicators for the degree of validness of the diffusion approximation",
Journal of Physics Communications, 5, 2, 025012 (17 pages) (2021). - Lin Cai, Tomonori Nitta, Sho Yokota, Takayuki Obata, Eiji Okada and Hiroshi Kawaguchi,
"Targeting brain regions of interest in functional near-infrared spectroscopy?Scalp-cortex correlation using subject-specific light propagation models",
Human Brain Mapping, 42, 7, pp. 1969-1986 (2021). - Yoko Hoshi, Yukari Tanikawa, Eiji Okada, Hiroshi Kawaguchi, Masahito Nemoto, Kosuke Shimizu, Tohru Kodama, and Masataka Watanabe,
"In situ estimation of optical properties of rat and monkey brains using femtosecond time-resolved measurements",
Scientific Reports, 9, 9165 (7 pages) (2019). - TakamasaAndo, Tatsuya Nakamura, Toshiya Fujii, Teruhiro Shiono, Tasuku Nakamura1, Masato Suzuki, NaomiAnzue-Satoi, Kenji Narumi, HisashiWatanabe, Tsuguhiro Korenaga, EijiOkada, and Yasunori Inoue,
Scientific Reports, 9, 17854 (9 pages) (2019). - Toshihiro Munemitsu, Akira Ishii, Eiji Okada, Hideo Chihara, Kazumichi Yoshida, Jun C. Takahashi, Yasushi Takagi, and Susumu Miyamoto, Neurologia medico-chirurgica, 59, 1, pp. 163-171 (2019).
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Kotaro Nakamura, Kazuki Kurihara, Hiroshi Kawaguchi, Takayuki Obata, Hiroshi Ito, and Eiji Okada,
“Estimation of partial optical path length in the brain in subject-specific head models for near-infrared spectroscopy”,
Optical Review, 23, 2, pp. 316-322 (2016). -
Yusuke Sakakibara, Kazuki Kurihara, and Eiji Okada,
“Evaluation of improvement of diffuse optical imaging of brain function by high-density probe arrangements and imaging algorithm”,
Optical Review, 23, 2, pp. 346-353 (2016). -
Hiroyuki Fujii, Shinpei Okawa, Ken Nadamoto, Eiji Okada, Yukio Yamada, Yoko Hoshi, and Masao Watanabe,
“Numerical modeling of photon migration in human neck based on the radiative transport equation”,
Journal of Applied Nonlinear Dynamics, 5, 1, pp. 117-125 (2016). -
Kazuki Kurihara, Hiroshi Kawaguchi, Takayuki Obata, Hiroshi Ito, and Eiji Okada,
“Magnetic resonance imaging appropriate for construction of subject-specific head models for diffuse optical tomography”,
Biomedical Optics Express, 6, 9, pp. 3197-3209 (2015). -
Yuta Sekiguchi, Hiroyuki Takuwa, Hiroshi Kawaguchi, Takahiro Kikuchi, Eiji Okada, Iwao Kanno, Hiroshi Ito, Yutaka Tomita, Yoshiaki Itoh, Norihiro Suzuki, Ryo Sudo, Kazuo Tanishita, and Kazuto Masamoto ,
“Peal arteries respond earlier than penetrating arterioles to neural activation in the somatosensory cortex in awake mice exposed to chromic hypoxia; an additional mechanism to proximal integration signaling? “,
Journal of Cerebral Blood Flow & Metabolism, 34, 11, pp. 1761-1770 (2014). -
Yuta Sekiguchi, Hiroyuki Takuwa, Hiroshi Kawaguchi, Takahiro Kikuchi, Eiji Okada, Iwao Kanno, Hiroshi Ito, Yutaka Tomita, Yoshiaki Itoh, Norihiro Suzuki, Ryo Sudo, Kazuo Tanishita, and Kazuto Masamoto,
“Peal arteries respond earlier than penetrating arterioles to neural activation in the somatosensory cortex in awake mice exposed to chromic hypoxia; an additional mechanism to proximal integration signaling?”,
Journal of Cerebral Blood Flow & Metabolism, 34 (11), pp. 1761-1770 (2014). -
Tsukasa Funane, Hirokazu Atsumori, Takusige Katura, Akiko N. Obata, Hiroki Sato, Yukari Tanikawa, Eiji Okada, and Masashi Kiguchi,
Quantitative evaluation of deep and shallow tissue layers' contribution to fNIRS signal using multi-distance optodes and independent component analysis”,
NeuroImage, 85, 1, pp. 150-165 (2014). -
Tsukasa Funane, Hirokazu Atsumori, Takusige Katura, Akiko N. Obata, Hiroki Sato, Yukari Tanikawa, Eiji Okada, and Masashi Kiguchi,
“Quantitative evaluation of deep and shallow tissue layers’ contribution to fNIRS signal using multi-distance optodes and independent component analysis”,
NeuroImage, (2013) [in press] -
Kazuki Kurihara, Hiroshi Kawaguchi, Takayuki Obata, Hiroshi Ito, Kaoru Sakatani, and Eiji Okada,
“The influence of frontal sinus in brain activation measurements by near-infrared spectroscopy analyzed by realistic head models”,
Biomedical Optics Express, 3 (9), pp. 2121-2130 (2012). -
Tsukasa Funane, Hirokazu Atsumori, Masashi Kiguchi, Yukari Tanikawa, and Eiji Okada,
“Dynamic phantom with two stage-driven absorbers for mimicking hemoglobin changes in superficial and deep tissues”,
Journal of Biomedical Optics, 17 (4), pp. 047001/1-11 (2012). -
草野将史, 中山遙, 正本和人, 菅野巌, 岡田英史,
“脳機能賦活に起因するマウス皮質組織血流のレーザー計測”,
レーザー研究, 40 (4), pp. 274-279 (2012). -
Hiroyuki Takuwa, Joonas Autio, Haruka Nakayama, Tetsuya Matsuura, Takayuku Obata, Eiji Okada, Kazuto Masamoto, and Iwao Kanno,
“Reproducibility and variance of a stimulation-induced hemodynamic response in barrel cortex of awake behaving mice”,
Brain Research, 1369, pp. 103-111 (2011). -
Tsukasa Funane, Hirokazu Atsumori, Masashi Kiguchi, Yukari Tanikawa, and Eiji Okada,
“Optical scanning system for light-absorption measurement of deep biological tissue”,
Review of Scientific Instrument, 82, pp. 093101/1-8 (2011). -
Shuping Wang, Nanae Shibahara, Daishi Kuramashi, Shinpei Okawa, Naoto Kakuta, Eiji Okada, Atsushi Maki, and Yukio Yamada,
“Effect of spatial variation of skull and cerebrospinal fluid layers on optical mapping of brain activities”,
Optical Review, 17 (4), pp. 410-420 (2010). -
Eiji Okada, Daisuke Yamamoto, Naoya Kiryu, Akihisa Katagiri, Noriaki Yokose, Takashi Awano, Kouji Igarashi, Sin Nakamura, Tatsuya Hoshino, Yoshihiro Murata, Tsuneo Kano, Kaoru Sakatani, and Yoichi Katayama,
“Theoretical and experimental investigation of the influence of frontal sinus on the sensitivity of the NIRS signal in the adult head”,
Advances in Experimental Medicine and Biology, 662, pp. 231-236 (2010). -
Yosuke Oki, Hiroshi Kawaguchi, and Eiji Okada,
“Validation of practical diffusion approximation for virtual near infrared spectrescopy using a digital head phantom”,
Optical Review, 16 (2), pp. 153-159 (2009). -
Koichiro Sakaguchi, Shunsuke Furukawa, Satoshi Matsuo, Naotaka Sakashita, Takushige Katsura, Kyoko Yamazaki, Hideo Kawaguchi, Atsushi Maki, and Eiji Okada,
“Influence of a skull cranial window on the measurement of haemoglobin concentration in cortical tissue by multi-spectral imaging analysis”,
Optical Review, 16 (2), pp. 74-80 (2009). -
Hiroshi Kawaguchi, Nobuhiro Okui, Koichiro Sakaguchi, and Eiji Okada,
“Theoretical analysis of crosstalk between oxygenated and deoxygenated haemoglobin in focal brain-activation measurements by near-infrared topography”,
Opto-Electronics Review, 16 (4), pp. 404-412 (2008). -
Koichiro Sakaguchi, Tomoya Tachibana, Shunsuke Furukawa, Takushige Katsura, Kyoko Yamazaki, Hideo Kawaguchi, Atsushi Maki, and Eiji Okada:
"Experimental prediction of wavelength-dependent pathlength factor for optical intrinsic signal analysis"
Applied Optics, 46(14), pp2769-2777, (2007).
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Hiroshi Kawaguchi, Tatsuya Koyama, and Eiji Okada:
"Effect of probe arrangement on reproducibility of images by NIR topography evaluated by virtual head phantom",
Applied Optics, 46(10), pp. 1658-1668 (2007)
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Kentaro Yokoyama, Motoshi Watanabe, Yohei Watanabe, and Eiji Okada:
"Interpretation of principal components of the reflectance spectra obtained from multi-spectral images of exposed pig brain",
Journal of Biomedical Optics
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Nobuhiro Okui and Eiji Okada:
"Wavelength dependence of relative cross talk in dual-wavelength measurement of oxy- and deoxy-hemoglobin",
Journal of Biomedical Optics, Vol. 10, (2005) .
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Tatsuya Koyama, Atsushi Iwasaki, Yosuke Ogoshi, and Eiji Okada:
"Practical and adequate approach to modeling light propagation in an adult head with low-scattering regions by use of diffusion theory",
Applied Optics, Vol.44. (2005) .
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Hiroshi Kawaguchi, Toshiyuki Hayashi, Toshinori Kato, and Eiji Okada:
"Theoretical evaluation of accuracy in position and size of brain activity obtained by near-infrared topography",
Physics in Medicine and Biology, Vol. 49, pp. 2753-2765 (2004).
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Toshiyuki Hayashi, Yoshihiko Kashio, and Eiji Okada:
"Effect of superficial tissue on spatial sensitivity profile of optical brain activity measurement evaluated by direct hybrid Monte Carlo - diffusion method",
Optical Review, Vol. 10, No. 4, pp. 501-505 (2003).
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Toshiyuki Hayashi and Eiji Okada:
"Hybrid Monte Carlo - diffusion method for light propagation in tissue with a low scattering region",
Applied Optics, Vol. 42, No. 16, pp. 2888-2896 (2003).
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Yuichi Fukui, Tsuyoshi Yamamoto, Toshinori Kato, and Eiji Okada:
"Analysis of light propagation in a three-dimensional realistic head model for topographic imaging by finite difference method",
Optical Review, Vol. 10, No. 4, pp. 470-473 (2003).
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Yuichi Fukui, Yusaku Ajichi and Eiji Okada:
"Monte Carlo prediction of near infrared light propagation in realistic adult and neonatal head models",
Applied Optics, Vol. 42, No. 16, pp. 2881-2887 (2003).
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Motoshi Watanabe, Kentaro Yokoyama, Kazushi Honjo, and Eiji Okada:
"Effect of scattering on spectral imaging of exposed cortical tissue for brain function measurement",
Optical Review, Vol. 10, No. 4, pp.474 -477 (2003).
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Yohei Watanabe and Eiji Okada:
"Influence of perfusion depth on laser Doppler flow measurement with large source-detector spacing",
Applied Optics, Vol. 42, No. 16, pp. 3198-3204 (2003).
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Muneo Ono, Yoshihiko Kashio, Martin Schweiger, Hamid Dehghni, Simon R. Arridge and Eiji Okada:
"Topographic distribution of photon measurement density functions on the brain surface by hybrid radiosity-diffusion method",
Optical Review, Vol. 7, No. 5, pp. 426-431 (2000).
解説論文
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岡田英史,
“拡散光イメージングと脳機能計測への応用”,
光アライアンス, 27, 2, pp. 12-17 (2016). -
岡田英史，栗原一樹，川口拓之，小畠隆行,
“拡散光イメージングと脳機能計測への応用”,
光技術コンタクト, 53, 7, pp. 16-23 (2015). -
岡田英史，栗原一樹，川口拓之，小畠隆行，星詳子,
“（総説）脳機能の近赤外光イメージングの技術動向”,
日本レーザー医学会誌, 36, 2, pp187-194 (2015). -
岡田英史, 佐藤俊一, 春名正光,
“光医療の変遷と最新の展開”,
光アライアンス, 21 (9), pp. 28-30 (2010). -
岡田英史,
“近赤外分光法による脳機能イメージング =測定原理と光伝播シミュレーションの応用=”,
光アライアンス, 21 (9), pp. 28-30 (2010). -
岡田英史,
“光伝播シミュレーションによるNIRS信号の解釈に関する検討”,
認知神経科学, 12 (1), pp. 44-51 (2010). -
岡田英史, 川口拓之, 坂口浩一郎, 山田幸生 ,
“生体光伝播シミュレーションの近赤外分光法への応用”,
脈管学, 49, pp. 113-119 (2009). -
岡田英史,
“光脳機能イメージングの原理”,
映像情報Medical, 42 (9), pp. 886-891 (2009).
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岡田英史,
“近赤外分光法による脳機能計測”,
光技術コンタクト, 47 (1), pp. 14-19 (2009).
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川口拓之, 坂口浩一郎, 岡田英史,
“近赤外光を用いた脳機能イメージング”,
O plus E, 30 (6), pp. 595-598 (2008). -
川口拓之, 岡田英史,
“頭部組織の光伝播シミュレーションと脳機能計測”,
光学, 36 (12), pp. 696-692 (2007). -
岡田英史,
“光伝播イメージングの理論的背景にもとづく留意点”,
認知神経科学, 9 (3), pp. 202-206 (2007). -
岡田英史,
“高散乱媒質中の光伝播解析”,
光学, 34 (11), pp. 562-567 (2007).
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岡田英史,
“NIRS測定の工学的シミュレーション”,
臨床精神医学, 33 (6), pp. 735-740 (2007). -
岡田英史,
“シミュレーションによる生体内光伝播解析”,
日本ME学会BME, 17 (4), pp. 2-7 (2003). -
岡田英史,
“脳内光伝播シミュレーション”,
レーザー研究, 30 (11), pp. 630-635 (2002).
