Presentations -
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上腕圧迫時の分光反射スペクトル変化に基づく皮膚内実効光路長の波長依存性の測定
佐藤 里奈，白井 大貴，加藤 陽，岡田 英史
日本光学会年次学術講演会 Optics & Photonics Japan 2017 (東京) ,
2017.10,Poster presentation
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Effect of broadened probing region on functional areas measured by a probe pair of fNIRS
NITTA TOMONORI, TSUYUKI RYOHEI, KAWAGUCHI HIROSHI, OKADA EIJI
European Conference on Biomedical Optics 2017 (Munich, Germany) ,
2017.06,Poster presentation
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Solid phantom mimicking localized absorption change in the brain and scalp for near infrared imaging
HAYABUSA KOKI, OKADA EIJI
European Conference on Biomedical Optics 2017 (Munich, Germany) ,
2017.06,Oral presentation (general)
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Influence of superficial tissue thickness on noninvasive detection of fluorescent probe in the brain
ASAI KOTA,KAWAGUCHI HIROSHI, OBATA TAKAYUKI, OKADA EIJI
European Conference on Biomedical Optics 2017 (Munich, Germany) ,
2017.06,Oral presentation (general)
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Light propagation analysis for fluorescence measurements of a molecular probe in the brain
ASAI KOTA, TOGASHI TAKUYA, OKADA EIJI
Biomedical Imaging and Sensing Conference 2017 (Yokohama, Japan) ,
2017.04,Poster presentation
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Estimation of functional areas probed by near-infrared spectroscopy instruments
NITTA TOMONORI, TSUYUKI RYOHEI, KAWAGUCHI HIROSHI, OKADA EIJI
Biomedical Imaging and Sensing Conference 2017 (Yokohama, Japan) ,
2017.04,Poster presentation
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拡散光トモグラフィーの画像再構成における頭部モデルの構造と光学特性値の影響
OKADA EIJI
レーザー学会 第489回研究会「ニューロフォトニクス」 (東京農工大学，東京) ,
2016.11,Oral presentation (general), レーザー学会
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反射型時間分解計測法を用いた生体組織の光学特性計測
OKADA EIJI
日本光学会年次学術講演会 - OPJ2016 - (筑波大学東京キャンパス文京校舎，東京) ,
2016.11,Poster presentation, 日本光学会
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ｆNIRS脳機能計測における頭表特徴点を用いた空間標準化の評価
OKADA EIJI
日本光学会年次学術講演会 - OPJ2016 - (筑波大学東京キャンパス文京校舎，東京) ,
2016.11,Poster presentation, 日本光学会
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気管領域の屈折率差を考慮した頸部の時間分解光伝播解析
OKADA EIJI
日本光学会年次学術講演会 - OPJ2016 - (筑波大学東京キャンパス文京校舎，東京) ,
2016.11,Poster presentation, 日本光学会
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Computational analysis of light propagation in the head for diffuse optical imaging of brain function
OKADA EIJI, KAZUKI KURIHARA, HIROSHI KAWAGUCHI, and TAKAYUKI OBATA
OSJ-OSA Joint Symposia on Plasmonics and Digital Opitcs (Tokyo, Japan) ,
2016.10,Oral presentation (invited, special), Optical Society of Japan, Optical Society of America, The Japan Society of Physics
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Influence of extracerebral blood vessels in subject-specific head models on image reconstruction of diffuse optical tomography
SHONOSUKE KURITA, KAZUKI KURIHARA, HIROSHI KAWAGUCHI, SHINPEI OKAWA, TAKAYUKI OBATA, and EIJI OKADA
The Society for functional Near Infrared Spectroscopy 2016 Biennial Meeting (Paris, France) ,
2016.10,Poster presentation, The Society for functional Near Infrared Spectroscopy
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Estimation of optical properties of the cerebral tissue using time-resolved spectroscopy of femtosecond laser pulses
YOKO HOSHI, YUKARI TANIKAWA, EIJI OKADA, HIROSHI KAWAGUCHI, MANABU MACHIDA, MASAHITO NEMOTO, TORU KODAMA, and MASATAKA WATANABE
The Society for functional Near Infrared Spectroscopy 2016 Biennial Meeting (Paris, France) ,
2016.10,Oral presentation (general), The Society for functional Near Infrared Spectroscopy
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Experimental estimation of influence of cosmetic foundation on optical path length in the skin
RINA SATO EIJI OKADA
Biomedical Imaging and Sensing Conference in Optics & Photonics International Congress 2016 (Yokohama) ,
2016.05,Poster presentation
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Construction of an anatomical neck model for diffuse optical imaging
NAOYOSHI WAKABAYASHI, KEN NADAMOTO, KAZUKI KURIHARA, SHINPEI OKAWA, KOH HASHIMOTO, HIROSHI KAWAGUCHI, YUKARI TANIKAWA, HIROSHI FUJII, SATORU KOHNO, YOKO HOSHI, and EIJI OKADA
Optical Tomography and Spectroscopy in Proceedings Biomedical Optics 2016 (Fort Lauderdale, Florida, USA) ,
2016.04,Poster presentation, Optical Society of America
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Wavelength dependence of partial optical path length in the vascular plexus of reflected light of skin
RINA SATO, MINAMI KATO, KAZUKI KURIHARA, and EIJI OKADA
Optical Tomography and Spectroscopy in Proceedings Biomedical Optics 2016 (Fort Lauderdale, Florida, USA) ,
2016.04,Poster presentation, Optical Society of America
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近赤外分光脳機能計測における脳内部分実効光路長の被験者間比較
OKADA EIJI
第18回ヒト脳機能マッピング学会,
2016.03,Oral presentation (general)
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マルチスペクトルイメージングによるマウス脳微小循環のヘモグロビン濃度変化測定－3次元血管構造モデルを用いた光路長補正の効果－
OKADA EIJI
つくば医工連携フォーラム2016,
2016.01,Poster presentation
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拡散光脳機能イメージングの画像再構成における頭部モデルの検討－脳表血管が再構成画像に与える影響－
OKADA EIJI
つくば医工連携フォーラム2016,
2016.01,Oral presentation (general)
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拡散光を用いた生体機能イメージング
OKADA EIJI
フォトニクス技術フォーラム・光情報技術，次世代光学素子合同研究会,
2015.12,Oral presentation (invited, special)
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脳表血管を考慮した頭部構造モデルに基づいた拡散光イメージング
OKADA EIJI
レーザー学会 第484回研究会「ニューロフォトニクス」,
2015.12,Oral presentation (general)
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マウス脳組織3次元血管モデルを用いたマルチスペクトルイメージング法による光脳機能イメージング
OKADA EIJI
レーザー学会 第484回研究会「ニューロフォトニクス」,
2015.12,Poster presentation
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マルチスペクトル法によるマウス脳内血管の種類に依存したヘモグロビン濃度変化の解析
OKADA EIJI
日本光学会年次学術講演会 Optics & Photonics Japan 2015 (東京) ,
2015.10,Oral presentation (general)
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複数プローブを用いた光脳機能計測における頭皮血流係数の部位間比較
OKADA EIJI
日本光学会年次学術講演会 Optics & Photonics Japan 2015 (東京) ,
2015.10,Poster presentation
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頸部の時間分解分光計測において気管が光伝播に与える影響の検討
OKADA EIJI
日本光学会年次学術講演会 Optics & Photonics Japan 2015 (東京) ,
2015.10,Poster presentation
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拡散光イメージングにおけるプローブ配置と画像化法の評価
OKADA EIJI
日本光学会年次学術講演会 Optics & Photonics Japan 2015 (東京) ,
2015.10,Poster presentation
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Estimation of path length in blood vessels from two-dimensional image of exposed cortex
Yuji Yamamoto, Takahiro Kikuchi, Yu Yoshimori, Hiroyuki Takuwa, Hiroshi Kawaguchi, Hiroshi Ito, and Eiji Okada
European Conference on Biomedical Optics, Diffuse Optical Imaging (Munich, Germany) ,
2015.06,Oral presentation (general)
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Near infrared topography using low-resolution image reconstruction
Ryohei Tsuyuki, Kazuki Kurihara, Eiji Okada
European Conference on Biomedical Optics, Diffuse Optical Imaging (Munich, Germany) ,
2015.06,Oral presentation (general)
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Cortical model including the structure of the blood vessels for optical intrinsic signal imaging
Yu Yoshimori, Takahiro Kikuchi, Hiroyuki Takuwa, Hiroshi Kawaguchi, Hiroshi Ito, and Eiji Okada
European Conference on Biomedical Optics, Diffuse Optical Imaging,
2015.06,Poster presentation
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Diffuse optical tomography: how to improve image quality?
<UYoko Hoshi, Eiji Okada, Shinpei Okawa, Yukari Tanikawa, Tetsuya Yoshinaga, Hiroyuki Fujii, Kenichi Fujimoto, Koh Hashimoto, and Satoru Kohno(/)-#HR
the 9th ICME International Conference on Complex Medical Engineering (CME 2015) (Okayama, Japan) ,
2015.06,Oral presentation (general)
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Numerical analysis of photon migration in three-dimensional turbid media using the delta-Eddington approximation
Hiroyuki Fujii, Shinpei Okawa, Ken Nadamoto, Eiji Okada, Yukio Yamada, Yoko Hoshi, and Masao Watanabe
the 9th ICME International Conference on Complex Medical Engineering (CME 2015),
2015.06,Oral presentation (general)
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Estimation of partial optical path length in the brain using in an anatomical head model for near-infrared spectroscopy
Kotaro Nakamura, Kazuki Kurihara, Hiroshi Kawaguchi, Hiroshi Ito, Takayuki Obata, and Eiji Okada
The 5th Asian and Pacific-Rim Symposium on Biophtonics (Yokohama, Japan) ,
2015.04,Poster presentation
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Error caused by anisotropy factor in optical properties measurement by time-resolved spectroscopy
Ken Nadamoto, Yukari Tanikawa, Yoko Hoshi and Eiji Okada
The 5th Asian and Pacific-Rim Symposium on Biophtonics (Yokohama Japan) ,
2015.04,Poster presentation
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Light propagation analysis in the cortical model with three dimensional blood vessel structure obtained by two-photon microscopy
Yu Yoshimori, Takahiro Kikuchi, Hiroyuki Takuwa, Hiroshi Kawagchi, Hiroshi Ito, and Eiji Okada
The 5th Asian and Pacific-Rim Symposium on Biophtonics (Yokohama, Japan) ,
2015.04 -
Estimation of partial optical path length in the cortical blood vessels from 2D image of exposed cortex
Yuji Yamamoto, Takahiro Kikuchi, Yu Yoshimori, Hiroyuki Takuwa, Hiroshi Kawaguchi, Koichiro Sakaguchi, Hiroshi Ito, and Eiji Okada
The 5th Asian and Pacific-Rim Symposium on Biophtonics (Yokohama, Japan) ,
2015.04,Poster presentation
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Analysis of spatial sensitivity profile of late-arriving photons in heterogeneous tissue in near-infrared spectroscopy
Naoyoshi Wakabayashi, Kosuke Takai, Kazuki Kurihara, and Eiji Okada
The 5th Asian and Pacific-Rim Symposium on Biophtonics (Yokohama, Japan) ,
2015.04,Poster presentation
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Improvement of localization error and spatial broadening of diffuse optical imaging by dense probe arrangement
Yosuke Sakakibara, Kazuki Kurihara, and Eiji Okada
The 5th Asian and Pacific-Rim Symposium on Biophtonics (Yokohama, Japan) ,
2015.04,Poster presentation
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Low-resolution image reconstruction for diffuse optical tomography
Ryosuke Tuyuki, Kazuki Kurihara, Shinpei Okawa, and Eiji Okada
The 5th Asian and Pacific-Rim Symposium on Biophtonics (Yokohama, Japan) ,
2015.04,Poster presentation
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Image reconstruction for diffuse optical tomography using a realistic human head model including extra-cerebral vasculature
Kazuki Kurihara, Hiroshi Kawaguchi, Shinpei Okawa, Takayki Obata, Hiroshi Ito, and Eiji Okada
The 5th Asian and Pacific-Rim Symposium on Biophtonics (Yokohama, Japan) ,
2015.04,Poster presentation
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光脳機能イメージングにおける順問題・逆問題
OKADA EIJI
第135回微小光学研究会「微小光学を拓く数学：予測・復元・逆問題へのアプローチ」,
2015.03,Oral presentation (general)
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Construction of MRI-based subject-specific head model for fNIRS
OKADA EIJI, Kazuki Kurihara, Hiroshi Kawaguchi, and Takayuki Obata
11th IGAKUKEN International Symposium on "Advances in Biomedical Optical Imaging",
2015.02,Symposium, workshop panel (nominated)
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拡散光イメージングと脳機能計測への応用
OKADA EIJI
日本光学会 第41回冬期講習会 光と生体観察・計測,
2015.01,Public lecture, seminar, tutorial, course, or other speech
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光機能イメージングのためのマウス脳内3次元血管構造に基づいた光路長推定
OKADA EIJI
日本光学会年次学術講演会 Optics & Photonics Japan 2014,
2014.11,Oral presentation (general)
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拡散光イメージングのための脳表血管構造を考慮した頭部モデル
OKADA EIJI
日本光学会年次学術講演会 Optics & Photonics Japan 2014,
2014.11,Oral presentation (general)
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Development of time-domain diffuse optical tomography based on a rediative transfer equation and diffuse approximation hybrid
Yoko Hoshi, Eiji Okada, Shinpei Okawa, Yukari Tanikawa, Tetsuya Yoshinaga, Hiroyuki Fujii, Kenichi Fujimoto, Koh Hashimoto, Satoru Kohno
fNIRS2014,
2014.10,Oral presentation (general)
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Analysis of time-resolved spatial sensitivity of NIRS using null source-detector separation
Kohsuke Takai, Kazuki Kurihara, and Eiji Okada
fNIRS2014,
2014.10,Poster presentation
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Evaluation of relationship between density of measurement points and point spread function of diffuse optical imaging
Yusuke Sakakibara, Kazuki Kurihara, and Eiji Okada
fNIRS2014,
2014.10,Poster presentation
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Evaluation of semi-subject-specific head model for fNIRS based on MR images of Japanese human head
Kotaro Nakamura, Kazuki Kurihara, Shunsuke Ichimura, Hiroshi Kawaguchi, Takayuki Obata, Hiroshi Ito, and Eiji Okada
fNIRS 2014,
2014.10,Poster presentation
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Adaptability of MR head image using new pulse sequences for fast segmentation algorithms to construct subject-specific head models
OKazuki Kurihara, Hiroshi Kawaguchi, Takayuki Obata, Hiroshi Ito, and Eiji Okada
fNIRS2014,
2014.10,Poster presentation
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Angular dependence of diffuse reflectance spectra of skin estimated by multi-layered model
Minami Kato, Masaya Ohtake, Takahiro Ohtsuka, Kazuki Kurihara and Eiji Okada
The 42nd Annual Meeting of the International Society on Oxygen Transport to Tissue (ISOTT2014),
2014.07,Poster presentation
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Determination of optical properties of cortical tissue by lookup-table method for time-resolved measurement
Ken Nadamoto, Kazuki Kurihara, Tadashi Iwase, Yukari Tanikawa, Yoko Hoshi, and Eiji Okada
The 42nd Annual Meeting of the International Society on Oxygen Transport to Tissue (ISOTT2014),
2014.07,Poster presentation
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Estimation of optical path length in blood vessels for optical imaging of exposed cortex
Yu Yoshimori, Takahiro Kikuchi, Hiroyuki Takuwa, Hiroshi Kawaguchi, Kazuto Masamoto, Hiroshi Ito, and Eiji Okada
The 42nd Annual Meeting of the International Society on Oxygen Transport to Tissue (ISOTT2014),
2014.07,Poster presentation
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バイオメディカル光イメージングにおける数理モデルと画像再構成
OKADA EIJI
第53回日本生体医工学会大会,
2014.06,Symposium, workshop panel (public)
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脳組織光学特性値の時間分解計測における散乱異方性パラメータの影響
OKADA EIJI
第53回日本生体医工学会大会,
2014.06,Oral presentation (general)
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Path length correction in exposed-cortex optical imaging using 3D model obtained by two-photon microscopy
Eiji Okada, Takahiro Kikuchi, Yu Yoshimori, Hiroyuki Takuwa, Hiroshi Kawaguchi, Kazuto Masamaoto, and Hiroshi Ito
Optical Society of America Topical Meeting on Biomedical Optics 2014,
2014.04,Poster presentation
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Influence of incidence and detection conditions on diffuse reflectance spectrum of skin
Minami Kato, Masaya Ohtake, Takahiro Ohtsuka, and Eiji Okada
Biomedical Imaging and Sensing Conference '14 (BISC'14),
2014.04,Poster presentation
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Monte Carlo simulation for determination of optical properties from time-resolved reflectance measured with a small probe separation
Ken Nadamoto, Tadashi Iwase, Yukari Tanikawa, Yoko Hoshi, and Eiji Okada
Biomedical Imaging and Sensing Conference '14 (BISC'14) (Yokohama, Japan) ,
2014.04,Poster presentation
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Correction of optical path length for measurement of haemoglobin change in exposed cortex
Yu, Yoshimori, Takahiro Kikuchi, Hiroyuki Takuwa, Hiroshi Kawaguchi, Kazuto Masamoto, Hiroshi Ito, and Eiji Okada
Biomedical Imaging and Sensing Conference '14 (BISC'14),
2014.04,Poster presentation
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Estimation of spatial distribution of partial optical path length in brain for functional near-infrared spectroscopy
Kotaro Nakamura, Kazuki Kurihara, Shunsuke Ichimura, Hiroshi Kawaguchi, Takayuki Obata, Hiroshi Ito, and Eiji Okada
Biomedical Imaging and Sensing Conference '14 (BISC'14),
2014.04,Poster presentation
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Effect of high-density probe arrangement on image quality of near-infrared topography
Yusuke Sakakibara, Shunsuke Ichimura, Mitsuhiko Tato, Kazuki Kurihara, and Eiji Okada
Biomedical Imaging and Sensing Conference '14 (BISC'14),
2014.04,Poster presentation
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Influence of trachea region on near-infrared light propagation in human neck
OKADA EIJI
2013 Japan-Taiwan Bilateral Symposium in Nano/Bio-Photonics (Hamamatsu, Japan) ,
2013.11,Poster presentation
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Imaging of cerebral blood flow of awake mice using laser speckle pattern
OKADA EIJI
2013 Japan-Taiwan Bilateral Symposium in Nano/Bio-Photonics (Hamamatsu, Japan) ,
2013.11,Oral presentation (invited, special)
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Visualization of microvessels and capillary bed associated with brain activity
OKADA EIJI
The 10th Conference on Lasers and Electro-Optics Pacific Rim (Kyoto, Japan) ,
2013.07,Oral presentation (general), IEEE
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Visualization of microvessels and capillary bed associated with brain activity
OKADA EIJI
The 10th Conference on Lasers and Electro-Optics Pacific Rim (Kyoto, Japan) ,
2013.07,Poster presentation, IEEE
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Simple prediction of diffuse reflectance spectra of skin using multi-layered model
OKADA EIJI
European Conference on Biomedical Optics (Munich, Germany) ,
2013.05,Oral presentation (general), SPIE
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Influence of hemodynamics in superficial tissues on DOT of brain function based on diffusion approximation
OKADA EIJI
European Conference on Biomedical Optics,
2013.05,Poster presentation
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Three-dimensional cortex model including vascular structure for estimation of path length for optical imaging
OKADA EIJI
European Conference on Biomedical Optics (Munich, Germany) ,
2013.05,Oral presentation (general), SPIE
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Evaluation of in depth spatial resolution of high-density probe arrangement for near-infrared topography
OKADA EIJI
European Conference on Biomedical Optics (Munich, Germany) ,
2013.05,Oral presentation (general), SPIE
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A hybrid MC-FEM model for analysis of light propagation in highly scattering medium
OKADA EIJI
European Conference on Biomedical Optics,
2013.05,Oral presentation (general)
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Head phantom including multiple absorption inclusions for near infrared topography
OKADA EIJI
fNIRS 2012 (London, UK) ,
2012.10,Poster presentation
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Segmentation of magnetic resonance images for individual head models for DOT
OKADA EIJI
fNIRS 2012 (London, UK) ,
2012.10,Poster presentation
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Morphological modification of brain structure for optical brain activation imaging
OKADA EIJI
fNIRS 2012 (London, UK) ,
2012.10,Poster presentation
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Light propagation analysis in head models for near-infrared topography
OKADA EIJI
Optical Society of Korea Summer Meeting 2012, Korea-Japan Biophotonics Special Session (Jeju Island, Korea) ,
2012.08,Oral presentation (invited, special)
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Analysis of light propagation in a realistic head model including front sinus
OKADA EIJI
Optical Society of America, Biomedical Topical Meeting (Miami Downtown, USA) ,
2012.05,Poster presentation
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Optical imaging of hemodynamic changes in exposed cortex of awake mice
OKADA EIJI
Optical Society of America, Biomedical Optics Topical Meeting (Miami, Downtown, USA) ,
2012.05,Poster presentation
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Identifying appropriate contrast MR images to construct a digital head phantom for functional near infrared spectroscopy
OKADA EIJI
ISMRM 20th Annual Meeting & Exhibition (Melbourne, Australia) ,
2012.05,Poster presentation
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NIR topography using MRI based head model
OKADA EIJI
UK-Japan Multimodal Imaging Meeting (Kavli Royal Society International Centre, Chicheley, UK) ,
2012.02,Oral presentation (invited, special)
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光脳機能イメージングの将来展望
OKADA EIJI, Hiroshi Kawaguchi
第48回光波センシング技術研究会講演会 (東京理科大学森戸記念館，東京) ,
2011.12,Oral presentation (invited, special)
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不規則な境界構造を考慮した多層構造モデルによる皮膚の光伝播解析
OKADA EIJI
日本光学会年次学術講演会 Optics & Photonics Japan 2011 (大阪大学コンベンションセンター，大阪) ,
2011.11,Oral presentation (general)
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レーザースペックルイメージング法によるマウス脳血流変化の時空間解析
OKADA EIJI
日本光学会年次学術講演会 Optics & Photonics Japan 2011 (大阪大学コンベンションセンター，大阪) ,
2011.11,Oral presentation (general)
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前頭洞の構造を考慮した頭部モデルの構築と光脳機能イメージングへの応用
OKADA EIJI
日本光学会年次学術講演会 Optics & Photonics Japan 2011 (大阪大学コンベンションセンター，大阪) ,
2011.11,Oral presentation (general)
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光脳機能トポグラフィ画像の空間的広がりの評価と改善に関する実験的検討
OKADA EIJI
日本光学会年次学術講演会 Optics & Photonics Japan 2011 (大阪大学コンベンションセンター，大阪) ,
2011.11,Oral presentation (general)
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デュアル受光プローブ近赤外光脳活動計測装置のファントム実験による評価
OKADA EIJI
日本光学会年次学術講演会 Optics & Photonics Japan 2011 (大阪大学コンベンションセンター，大阪) ,
2011.11,Oral presentation (general)
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光脳機能トポグラフィー画像に賦活領域の大きさが及ぼす影響に関するファントム実験
OKADA EIJI
日本光学会年次学術講演会 Optics & Photonics Japan 2011 (大阪大学コンベンションセンター，大阪) ,
2011.11,Oral presentation (general)
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Evaluation of probe arrangement for optical imaging of brain function
OKADA EIJI
Taiwan-Japan Bilateral Symposium in Nano/Bio-Photonics (Tainan, Taiwan) ,
2011.11,Oral presentation (invited, special)
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Phantom experiments for quantitative evaluation of topographic image by mapping algorithm
YUSUKE YOSHIDA, HIROKAZU KAKUTA, OKADA EIJI
European Cofnerence on Biomedical Optics (International Conference Centre, Munich, Germany) ,
2011.05,Oral presentation (general)
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Analysis of the diffuse reflectance spectra of skin due to detection system
SHOJI TAKANO, OKADA EIJI
European Cofnerence on Biomedical Optics (International Conference Centre, Munich, Germany) ,
2011.05,Oral presentation (general)
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Evaluation of the position resolution of NIR topography by localised visual stimulation
HIROKAZU KAKUTA, OKADA EIJI
European Cofnerence on Biomedical Optics (International Conference Centre, Munich, Germany) ,
2011.05,Oral presentation (general)
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Independent component analysis of NIRS signals measured with multi-distance probe configuration
OKADA EIJI, YUTAKA NIKI, HIROKAZU KAKUTA
European Cofnerence on Biomedical Optics (International Conference Centre, Munich, Germany) ,
2011.05,Poster presentation
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Segmentation of magnetic resonance images to construct human head model for diffuse optical imaging
KAZUKI KURIHARA, HIROSHI KAWAGUCHI, YOUSUKE TAKAHASHI, TAKAYUKI OBATA, OKADA EIJI
European Cofnerence on Biomedical Optics (International Conference Centre, Munich, Germany) ,
2011.05,Oral presentation (general)
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Comparison of temporal response to cerebral blood flow measured by laser speckle flowgraphy and laser Doppler flowmetry
MASASHI KUSANO, HARUKA NAKAYAMA, HIROYUKI TAKUWA, KAZUTO MASAMOTO, IWAO KANNO, OKADA EIJI
European Cofnerence on Biomedical Optics (International Conference Centre, Munich, Germany) ,
2011.05,Oral presentation (general)
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Effective reduction of biological signal from superficial tissue in fNIRS measurements
OKADA EIJI
Functional Near Infrared Spectroscopy 2010 (Harvard University, Cambridge, USA) ,
2010.10,Poster presentation
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A head phantom for use in near infrared topography for brain function measurements
OKADA EIJI
Opital Society of America, Topical Meeting on Biomedical Optics (Miami, USA) ,
2010.04,Poster presentation, Optical Society of America
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Multi-layered models for prediction of diffuse reflectance spectra of skin and lip
OKADA EIJI
Opital Society of America, Topical Meeting on Biomedical Optics (Miami, USA) ,
2010.04,Oral presentation (general), Optical Society of America
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光脳機能イメージングと頭部光伝播解析
OKADA EIJI
レーザー学会学術講演会第30回年次大会 (東京) ,
2010.02,Oral presentation (invited, special)
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最先端光脳機能イメージング技術
OKADA EIJI
第30回日本レーザー医学会総会 (東京) ,
2009.12,Oral presentation (general)
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脳の分光反射率変化の波長依存性に賦活部位の深度が及ぼす影響
OKADA EIJI
日本光学会年次学術講演会 Optics and Photonics Japan 2009 (新潟) ,
2009.11,Poster presentation, 応用物理学会日本光学会
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光脳機能計測における耐クロストークノイズキャンセラによる表層信号の除去に関する検討
OKADA EIJI
日本光学会年次学術講演会 Optics and Photonics Japan 2009 (新潟) ,
2009.11,Oral presentation (general), 応用物理学会日本光学会
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頭部光伝播シミュレーションによるNIRS信号解釈に関する検討
OKADA EIJI
第14回認知神経科学会学術集会 (東京) ,
2009.07,Oral presentation (general)
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fNIRSの計測原理
OKADA EIJI
第31回日本神経科学大会 (東京) ,
2009.07,Oral presentation (general)
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Influence of SNR on statistical analysis of spatial extent of brain activation measured by multi-spectral imaging
SAKASHITA NAOTAKA, SAKAGUCHI KOICHIRO, MATSUO SATOSHI, NAKAYAMA HARUKA, KATSURA TAKUSHIGE, YAMAZAKI KYOKO, TANAKA NAOKI, KAWAGUCHI HIDEO, MAKI ATSUSHI, OKADA EIJI
European Conference on Biomedical Optics (Munich, Germany) ,
2009.06,Oral presentation (general)
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Phantom experiments for validataion of spatial resolution improvement of optical topography for double-density measurement
KAKUTA HIROKAZU, KAWAGUCHI HIROSHI, OKADA EIJI
European Conference on Biomedical Optics (Munich, Germany) ,
2009.06,Poster presentation
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Evaluation of spatial resolution of near-infrared topography by a digital head phantom
OKADA EIJI, KIRYU NAOYA, KAKUTA HIROKAZU, KAWAGUCHI HIROSHI
European Conference on Biomedical Optics (Munich, Germany) ,
2009.06,Poster presentation
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Extraction of brain-activation component from NIRS signal by using independent component analysis
MATSUI WATARU, NIKI YUTAKA, SUZUKI AYANO, OKADA EIJI
European Conference on Biomedical Optics (Munich, Germany) ,
2009.06,Poster presentation
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Measurements of temporal-spatial change in blood flow and volume in exposed cortex of guinea pig evoked by auditory stimulation
NAKAYAMA HARUKA, MATSUO SATOSHI, SAKASHITA NAOTAKA, SAKAGUCHI KOICHIRO, KATSURA TAKUSHIGE, YAMAZAKI KYOKO, TANAKA NAOKI, KAWAGUCHI HIDEO, MAKI ATSUSHI, OKADA EIJI
European Conference on Biomedical Optics (Munich, Germany) ,
2009.06,Poster presentation
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Analysis of light propagation in head models for probabilistic registratin of NIRS data
TAKAHASHI YOSUKE, OKI YOSUKE, TSUZUKI DAISUKE, LKHAMSUREN ENKHTUR, KAWAGUCHI HIROSHI, DAN IPPEITA, OKADA EIJI
European Conference on Biomedical Optics (Munich, Germany) ,
2009.06,Poster presentation
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Optimisation of algorithm for blood-flow measurement by laser speckle method
NAKAYAMA HARUKA, MATSUO SATOSHI, SAKAGUCHI KOICHIRO, KATSURA TAKUSHIGE, YAMAZAKI KYOKO, KAWAGUCHI HIDEO, MAKI ATSUSHI, OKADA EIJI
4th Asian and Pacific Rim Symposium on Biophotonics (JeJu, Korea) ,
2009.05,Poster presentation
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Effect of the optical properties of tissue on simulation of light propagation in a head model
YOSUKE TAKAHASHI, HIROSHI KAWAGUCHI, OKADA EIJI
4th Asian and Pacific Rim Symposium on Biophotonics (JeJu, Korea) ,
2009.05,Poster presentation
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Evaluation of crosstalk resistance noise canceller for extraction of brain signal in near-infrared spectroscopy
WATARU MATSUI, HIROSHI KAWAGUCHI, OKADA EIJI
4th Asian and Pacific Rim Symposium on Biophotonics (JeJu, Korea) ,
2009.05,Oral presentation (general)
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Influence of the depth of brain activation on wavelength dependence of optical path length
NAOTAKA SAKASHITA, KOICHIRO SAKAGUCHI, SATOSHI MATSUO, TAKUSHIGE KATSURA, KYOKO YAMAZAKI, HIDEO KAWAGUCHI, ATSUHSI MAKI, OKADA EIJI
4th Asian and Pacific Rim Symposium on Biophotonics (JeJu, Korea) ,
2009.05,Poster presentation
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Effect of spatial variation of skull and cerebrospinal fluid layers on optical mapping of brain activities
S. WANG, N. SHIBAHARA, D. KURAMASHI, S. OKAWA, E. OKADA, A. MAKI, Y. YAMADA
4th Asian and Pacific Rim Symposium on Biophotonics (JeJu, Korea) ,
2009.05,Poster presentation
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Experimental evaluation of spatial resolution of near infrared topography by using head phantom
HIROKAZU KAKUTA, HIROSHI KAWAGUCHI, OKADA EIJI
4th Asian and Pacific Rim Symposium on Biophotonics (JeJu, Korea) ,
2009.05,Oral presentation (general)
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NIRSにおける多重散乱とシミュレーション
OKADA EIJI
第10回日本脳機能イメージング研究会 (東京) ,
2008.12,Oral presentation (general)
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光脳機能トポグラフィーの空間分解能と感度むらに関する理論的検討
OKADA EIJI
日本光学会年次学術講演会 Optics and Photonics Japan 2008 (つくば) ,
2008.11,Oral presentation (general), 応用物理学会日本光学会
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光脳機能計測における生体雑音除去の信号処理アルゴリズムに関する検討
OKADA EIJI
日本光学会年次学術講演会 Optics and Photonics Japan 2008 (つくば) ,
2008.11,Poster presentation, 応用物理学会日本光学会
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標準頭部モデルの光伝播解析によるfNIR脳機能計測における測定領域の確率的マッピング
OKADA EIJI
日本光学会年次学術講演会 Optics and Photonics Japan 2008 (つくば) ,
2008.11,Oral presentation (general), 応用物理学会日本光学会
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脳酸素代謝の分光画像計測における血球散乱変化の影響
OKADA EIJI
日本光学会年次学術講演会 Optics and Photonics Japan 2008 (つくば) ,
2008.11,Oral presentation (general), 応用物理学会日本光学会
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標準頭部モデルの光伝播解析によるfNIR脳機能計測における測定領域の確率的マッピング
OKADA EIJI
日本光学会年次学術講演会 Optics and Photonics Japan 2008 (つくば) ,
2008.11,Oral presentation (general), 応用物理学会日本光学会
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近赤外光による脳機能計測の感度とプローブ間隔に関する検討
OKADA EIJI
日本光学会年次学術講演会 Optics and Photonics Japan 2008 (つくば) ,
2008.11,Oral presentation (general), 応用物理学会日本光学会
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光脳機能トポグラフィーの空間分解能と感度むらに関する理論的検討
OKADA EIJI
日本光学会年次学術講演会 Optics and Photonics Japan 2008 (つくば) ,
2008.11,Oral presentation (general), 応用物理学会日本光学会
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分光画像計測による脳機能賦活領域の統計解析に波長選択が及ぼす影響
OKADA EIJI
日本光学会年次学術講演会 Optics and Photonics Japan 2008 (つくば) ,
2008.11,Poster presentation, 応用物理学会日本光学会
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光脳機能イメージングにおける光散乱のシミュレーション
OKADA EIJI
第9回日本脳機能イメージング研究会 (東京) ,
2008.07,Oral presentation (general)
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Comparison of algorithm to calculate cortical blood flow of guinea pigs by laser speckle method
SATOSHI MATSUO, KOICHIRO SAKAGUCHI, NAOTAKA SAKASHITA, NARISHIGE KATSURA, KYOKO YAMAZAKI, HIDEO KAWAGUCHI, ATSUSHI MAKI, OKADA EIJI
6th International Conference on Optics-Photonics Design and Fabrication (Taipei, Taiwan) ,
2008.06,Poster presentation
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Validation of diffusion approximation for the calculation of light propagation in the realistic head models
YOSUKE OKI, HIROSHI KAWAGUCHI, OKADA EIJI
6th International Conference on Optics-Photonics Design and Fabrication (Taipei, Taiwan) ,
2008.06,Oral presentation (general)
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Evaluation of the adaptive filter for the extraction of functional brain response from the near-infrared spectroscopy signal
WATARU MATSUI, OKADA EIJI
6th International Conference on Optics-Photonics Design and Fabrication (Taipei, Taiwan) ,
2008.06,Oral presentation (general)
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Analysis of the relationship between probe spacing and the amplitude of brain signal detected by near-infrared spectroscopy
YUTAKA NIKI, OKADA EIJI
6th International Conference on Optics-Photonics Design and Fabrication (Taipei, Taiwan) ,
2008.06,Poster presentation
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Theoretical evaluation of non-uniform sensitivity profile on spatial resolution of near-infrared topography
NAOYA KIRYU, HIROSHI KAWAGUCHI, OKADA EIJI
6th International Conference on Optics-Photonics Design and Fabrication (Taipei, Taiwan) ,
2008.06,Poster presentation
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Influence of SNR of optical intrinsic signal on statistical analysis of spatial extent of brain activation
NAOTAKA SAKASHITA, KOICHIRO SAKAGUCHI, SATOSHI MATSUO, NARISHIGE KATSURA, KYOKO YAMAZAKI, HIDEO KAWAGUCHI, ATSUSHI MAKI, OKADA EIJI
6th International Conference on Optics-Photonics Design and Fabrication (Taipei, Taiwan) ,
2008.06,Poster presentation