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OGAWA Koichi
Faculty of Science and Engineering Department of Applied Informatics
Professor
Researchmap URL
https://researchmap.jp/read0029514
Career
■ Career
- Apr. 2008 - Present
法政大学理工学部教授(「情報理論」「画像工学」「画像診断機器概論」担当) - Apr. 2007 - Present
慶應義塾大学医学部客員教授 - Apr. 2000 - Present
法政大学大学院工学研究科情報電子工学専攻兼担教授（「電子画像工学特論1・2」担当） （現在に至る） - Apr. 2017 - Mar. 2021
法政大学常務理事・副学長, 常務理事・副学長 - Apr. 2010 - Mar. 2017
群馬大学医学部・兼任講師 - Apr. 2014 - Mar. 2016
法政大学理工学部学部長 - 01 Apr. 1998 - 31 Mar. 2008
法政大学工学部 教授(「情報理論」「画像工学」「情報符号化論」担当) - Apr. 1998 - Mar. 2008
法政大学工学部 教授(「情報理論」「画像工学」「情報符号化論」担当) - Apr. 1991 - Mar. 2006
慶應義塾大学医学部 非常勤講師 - 01 Apr. 2000
法政大学大学院工学研究科情報電子工学専攻兼担教授（「電子画像工学特論1・2」担当） （現在に至る） - Apr. 1998 - Mar. 2000
法政大学大学院工学研究科電気工学専攻 兼担教授(「画像工学特論1・2」担当) - Apr. 1995 - Mar. 2000
慶応義塾大学大学院理工学研究科生体工学専攻 非常勤講師（「医用画像工学特論」担当） - Apr. 1991 - Mar. 1998
法政大学大学院工学研究科電気工学専攻兼担 助教授 - Apr. 1991 - Mar. 1998
法政大学工学部 助教授 - Apr. 1993 - Mar. 1995
法政大学計算センター 副所長 - Nov. 1990 - Mar. 1991
慶応義塾大学医学部 専任講師 - May 1990 - Mar. 1991
電気通信大学 非常勤講師 - Apr. 1982 - Oct. 1990
慶應義塾大学医学部 助手
- Apr. 1980 - Mar. 1982, Keio University, Graduate School, Division of Engineering, 電気工学専攻
- Apr. 1976 - Mar. 1980, Keio University, Faculty of Engineering, Department of Electrical Engineering
- Jun. 2023 - Present
功労会員, 日本心臓核医学会 - Apr. 2023 - Present
名誉会員, 日本医学物理学会 - Sep. 2020 - Present
幹事, 日本医用画像工学会 - Oct. 2013 - Present
評議員, 日本核医学会 - May 2013 - Present
顧問, 電子情報通信学会 - Apr. 1998 - Mar. 2023
評議員, 日本心臓核医学会 - Aug. 2016 - Sep. 2020
会長, 日本医用画像工学会 - Oct. 2000 - Dec. 2014
評議員, 日本医学物理学会 - Aug. 1994 - Dec. 2014
幹事, 日本医用画像工学会 - Oct. 1993 - Dec. 2014
評議員, 日本核医学会 - Apr. 1993 - Dec. 2014
論文査読委員, 電子情報通信学会 - Aug. 2012 - Jul. 2014
副会長, 日本医用画像工学会 - Aug. 2000 - Jul. 2014
常任幹事, 日本医用画像工学会 - Oct. 2009 - Sep. 2013
理事, 日本核医学会 - 16 Nov. 2012 - 17 Nov. 2012
General Chair, International Forum on Medical Imaging in ASIA - Apr. 2012 - Apr. 2012
第103回日本医学物理学会大会 大会長, 日本医学物理学会 - Oct. 2003 - Mar. 2010
理事, 日本医学物理学会 - Aug. 2008 - Aug. 2008
第27回日本医用画像工学会大会 大会長, 日本医用画像工学会 - Aug. 2000 - Jul. 2007
編集委員長, 日本医用画像工学会 - Oct. 2001 - Sep. 2005
理事, 日本核医学会 - Apr. 2000 - Mar. 2002
評議員, 日本医学放射線学会 - Oct. 1999 - Sep. 2000
理事, 日本医学物理学会 - Aug. 1993 - Jul. 2000
編集副委員長, 日本医用画像工学会 - Apr. 1993 - Sep. 1999
幹事, 日本医学物理学会 - Apr. 1990 - Mar. 1998
幹事, 日本医学放射線物理学会 - Aug. 1995 - Aug. 1995
第12回日本医学放射線物理学会研究発表会 大会長, 日本医学放射線物理学会
Research activity information
■ Award
- Jan. 2024
IEEE, Life Member - Jun. 2023
日本心臓核医学会, 功労会員 - Apr. 2023
日本医学物理学会, 名誉会員 - Oct. 2021
日本医用画像工学会, Japanese Association of Medical Imaging Technology - Sep. 2020
Asia Oceania Federation of Organizations for Medical Physics(AFOMP)
Outstanding Medical Physicist Award, International academic award
Koichi Ogawa - Aug. 2004
日本医用画像工学会, 第23回日本医用画像工学会大会 大会長賞 - Jul. 1998
日本医用画像工学会, 平成10年度日本医用画像工学会奨励賞[ヘリカルスキャンCTにおける新しいデータ収集法の提案]
ヘリカルスキャンCTにおける新しいデータ収集法の提案 - Nov. 1997
通商産業省, 平成9年度情報化月間通産大臣賞 受賞(ISAC委員会）
ISAC規格の構築 - Oct. 1991
日本核医学会, 第29回日本核医学会賞[Quantitative Image Reconstruction Using Position-Dependent Scatter Correction in Single Photon Emission CT]
Quantitative Image Reconstruction Using Position-Dependent Scatter Correction in Single Photon Emission CT - Jul. 1989
日本医用画像工学会, 第1回日本医用画像工学会論文賞[シングルフォトンエミッションＣＴにおけるガンマカメラの感度不均一性にともなう画質劣化の改善に関する研究]
シングルフォトンエミッションＣＴにおけるガンマカメラの感度不均一性にともなう画質劣化の改善に関する研究 - Apr. 1979
RCA, David Sarnoff RCA Scholarship Award
- Evaluation of motion artefact reduction depending on the artefacts’ directions in head MRI using conditional generative adversarial networks
Keisuke Usui; Isao Muro; Syuhei Shibukawa; Masami Goto; Koichi Ogawa; Yasuaki Sakano; Shinsuke Kyogoku; Hiroyuki Daida
Scientific Reports, Dec. 2023 - Reducing image artifacts in sparse projection CT using conditional generative adversarial networks
42.Keisuke Usui; Sae Kamiyama; Akihiro Arita; Koichi Ogawa; Hajime Sakamoto; Yasuaki Sakano,Shinsuke Kyogoku,Hiroyuki Daida
Journal of Medical and Biological Engineering, 2023, [Reviewed] - Deconvolution-based Image Recovery for Dynamic Study With Multi-pinhole SPECT System
Momoka Yamada; Kazumi Murata; and Koichi Ogawa
Conf Rec on IEEE Nuclear Science Symposium and Medical Imaging Conference, 2023, [Reviewed]
Last, Corresponding - Scatter and Beam Hardening Correction of Cone Beam CT with a Convolutional Neural Network
Soya Yagi; Keisuke Usui; and Koichi Ogawa
Conf Rec. on IEEE Nuclear Science Symposium and Medical Imaging Conference, 2023, [Reviewed]
Last, Corresponding - Reduction of Motion Artifacts in Head Magnetic Resonance Imaging using Conditional Generative Adversarial Networks
Akihiro Arita; Keisuke Usui; Syuhei Shibukawa; Masami Goto; Yasuaki Sakano; Shinsuke Kyogoku; Isao Muro; Hiroyuki Daida and Koichi Ogawa
Conf Rec on IEEE Nuclear Science Symposium and Medical Imaging Conference, 2023, [Reviewed]
Last - Improvement of the Spatial Resolution of a Multi-pinhole SPECT System with a Deep Learning Method
R. Shimada; K. Murata; K. Ogawa
Conf. Rec. on IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2022, [Reviewed]
Last - Regularization-based restoration of distorted spectral images for photon counting CT
K. Murata; K. Ogawa
Conf. Rec. on IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2022, [Reviewed]
Last - Separation of Overlapped Projection Images in a Multi-pinhole SPECT System With a Neural Network
K. Yamaguchi; K. Murata; K. Ogawa
Conf. Rec. on IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2022, [Reviewed]
Last - Resolution Recovery of a Static Multi-Pinhole SPECT System via PSF Deconvolution on Projection Domain
K. Murata; M. Okoshi; M. Yamada; K. Ogawa
Conf. Rec. on IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2022, [Reviewed]
Last - Cycle-Generative Adversarial Networkを用いた胸部4Dコーンビーム型コンピュータ断層撮影の画質の改善方法(Image Quality Improvement for Chest Four-Dimensional Cone-Beam Computed Tomography by Cycle-Generative Adversarial Network)
Usui Keisuke; Ogawa Koichi; Goto Masami; Sakano Yasuaki; Kyogoku Shinsuke; Daida Hiroyuki
MEDICAL IMAGING TECHNOLOGY, Mar. 2022 - Motion artifact correction of Head MRI using Conditional Generative Adversarial Networks
Keisuke Usui; Isao Muro; Syuhei Shibukawa; Masami Goto; Koichi Ogawa; Yasuaki Sakano; Shinsuke Kyogoku,Hiroyuki Daida
IJCARS, 2022, [Reviewed] - A cycle generative adversarial network for improving the quality of four-dimensional cone-beam computed tomography images
Keisuke Usui; Koichi Ogawa; Masami Goto; Yasuaki Sakano; Shinsuke Kyougoku; Hiroyuki Daida
Radiation Oncology, 2022, [Reviewed] - Improvement of the spatial resolution with a deconvolution method for a multi-pinhole SPECT system
Michi Okoshi; Kazumi Murata; Koichi Ogawa
Conf. Rec. on IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2021, [Reviewed]
Last - Comparison of Scatter Correction Methods in a Multi-pinhole SPECT
Ryo Shimada; Kazumi Murata; Koichi Ogawa
Conf. Rec. on IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2021, [Reviewed]
Last - Development of a GPU-based Fast Computational Simulation Code for Quantitative Evaluation of Scattered Radiation
Shota Sezai; Kazumi Murata; Koichi Ogawa
Conf. Rec. on IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2021, [Reviewed]
Last - Spectral distortion correction of photon-counting CT with machine learning
Kazumi Murata; Koichi Ogawa
Conf. Rec. on IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2021, [Reviewed]
Last - Cycle-generative adversarial network-based image correction of 4-dimensional cone-beam computed tomography for lung cancer adaptive radiation therapy
K. Usui; K. Ogawa; M. Goto; Y. Sakano; N. Shikama; S. Kyogoku; K. Sasai; and H. Daida
International Journal of Radiation Oncology Biology Physics, Nov. 2021, [Reviewed] - Quantitative evaluation of deep convolutional neural network-based image denoising for low-dose computed tomography.
Keisuke Usui; Koichi Ogawa; Masami Goto; Yasuaki Sakano; Shinsuke Kyougoku; Hiroyuki Daida
Visual computing for industry, biomedicine, and art, 25 Jul. 2021 - 事前学習済み深層ニューラルネットワークを用いた低線量CTノイズ除去(Low dose CT denoising using a pre-trained convolutional neural network)
Usui Keisuke; Isobe Akira; Ogawa Koichi
順天堂保健医療学雑誌, Mar. 2021 - Quantitative evaluation of deep convolutional neural network based denoising for ultra-low-dose CT
Keisuke Usui; Kentarou Suzuki; Akira Isobe; Kazumi Murata; Koichi Ogawa
Proc. on 20th Asia-Oceania Congress on Medical Physics (AOCMP), 03 Dec. 2020, [Reviewed] - Image reconstruction method based on a deep learning in a multi-pinhole SPECT system
Hiroaki Konno; Michi Okoshi; Kazumi Murata; Koichi Ogawa
Proc. on 20th Asia-Oceania Congress on Medical Physics (AOCMP), 03 Dec. 2020, [Reviewed] - Material decomposition for photon-counting CT spectra with Machine Learning
Kazumi Murata; Koichi Ogawa
Proc. on 20th Asia-Oceania Congress on Medical Physics (AOCMP), 03 Dec. 2020, [Reviewed] - Improvement of the spatial resolution with a deconvolution method in a pinhole SPECT system
Michi Okoshi; Kazumi Murata; Koichi Ogawa
Proc. on 20th Asia-Oceania Congress on Medical Physics (AOCMP), 03 Dec. 2020, [Reviewed] - Spectral distortion correction caused by pulse-pileup effects with a machine learning technique for a photon counting x-ray detector
Kohei Koyama; Kazumi Murata; Koichi Ogawa
Proc. on 20th Asia-Oceania Congress on Medical Physics (AOCMP), 03 Dec. 2020, [Reviewed] - Denoising of OCT images with a bandelet transform for feature extractions
Keito Sato; Kazumi Murata; Koichi Ogawa
Proc. on 20th Asia-Oceania Congress on Medical Physics (AOCMP), 03 Dec. 2020, [Reviewed] - Influence of pulse pile-up effects on material decomposition with photon-counting CT
Kazumi Murata; Koichi Ogawa
Conf. Rec. on IEEE Nuclear Science Symposium and Medical Imaging Conference, 08 Nov. 2020, [Reviewed] - Ring-artifact correction with total-variation regularization for material images in photon-counting CT
Kazumi Murata; Koichi Ogawa
IEEE Transactions on Radiation and Plasma Medical Sciences, 01 Nov. 2020, [Reviewed]
Corresponding - Energy calibration of a photon-counting CT with K-edge absorption features
Kazumi Murata; Koichi Ogawa
Conf. Rec. on IEEE Nuclear Science Symposium and Medical Imaging Conference, 01 Nov. 2019, [Reviewed] - Image Reconstruction with an Electron Tracking Compton Camera
Masafumi Inagaki; Koichi Ogawa; Toru Tanimori
Conf. Rec. on IEEE Nuclear Science Symposium and Medical Imaging Conference, 01 Nov. 2019, [Reviewed] - Comparison of a Multi-pinhole Stationary SPECT system and a Parallel-hole High Speed Rotational SPECT system
Yohei Fujishiro; Kazumi Murata; Nobutoku Motomura; Koichi Ogawa
Conf. Rec. on IEEE Nuclear Science Symposium and Medical Imaging Conference, 01 Nov. 2019, [Reviewed] - Measurement of Atomic Density with a Photon Counting X-ray CT
Koichi Ogawa; Ryo Ito
Proceedings of the 5th World Congress on Electrical Engineering and Computer Systems and Sciences (EECSS’19), 21 Aug. 2019, [Reviewed] - Development of rotational set-up correction device for stereotactic head radiation therapy: A performance evaluation
Keisuke Usui; Akira Isobe; Naoya Hara; Tomoya Muroi; Osam Sajiki; Koichi Ogawa; Naoto Shikama; Keisuke Sasai
J Appl Clin Med Phys, 26 May 2019, [Reviewed] - Appropriate treatment planning method for field joint dose in total body irradiation using helical tomotherapy
Keisuke Usui; Akira Isobe; Naoya Hara; Naoto Shikama; Keisuke Sasai; Koichi Ogawa
Medical Dosimetry, 10 May 2019, [Reviewed] - List Mode Image Reconstruction With a Multi-pinhole Triple Head SPECT System
Yohei Fujishiro; Kazumi Murata; Nobutoku Motomura; Koichi Ogawa
Conf. Rec. on IEEE Nuclear Science Symposium and Medical Imaging Conference, 15 Nov. 2018, [Reviewed] - X-ray CT Imaging with a Dental Panoramic Apparatus
Koichi Ogawa; Kohei Kawai
Proceedings of the 4th World Congress on Electrical Engineering and Computer Systems and Sciences (EECSS’18), 21 Aug. 2018, [Reviewed] - Effect of region extraction and assigned mass-density values on the accuracy of dose calculation with magnetic resonance-based volumetric arc therapy planning
Keisuke Usui; Keisuke Sasai; Koichi Ogawa
Radiological Physics and Technology, 01 Jun. 2018, [Reviewed] - Speckle noise reduction of optical coherence tomography images with a wavelet transform
Tsuyoshi Murakami; Koichi Ogawa
Proceedings - 2018 IEEE 14th International Colloquium on Signal Processing and its Application, CSPA 2018, 29 May 2018, [Reviewed] - フォトンカウンティング形Ｘ線ＣＴが可能とする技術
尾川浩一
光アライアンス, Jan. 2018, [Invited] - SPECTにおけるモンテカルロシミュレーション技術
尾川浩一
核医学技術, Jan. 2018, [Invited] - A layered collimator for radiographic imaging
Ippei KUSAKARI; Koichi OGAWA and Keisuke USUI
Conf Rec on IEEE Nuclear Science Symposium and Medical Imaging Conference, 21 Oct. 2017, [Reviewed] - Simulation study on a stationary SPECT system with multi-pinhole collimators
Hayao KUBOTA; Nobutoku MOTOMURA; and Koichi OGAWA
Conf Rec on IEEE Nuclear Science Symposium and Medical Imaging Conference, 21 Oct. 2017, [Reviewed] - Image fusion with a dental panoramic x-ray image and face image acquired with a KINECT
Kohei Kawai; Koichi Ogawa; Akitoshi Katsumata
Conf Rec on IEEE Nuclear Science Symposium and Medical Imaging Conference, 21 Oct. 2017 - Estimation of an atomic density with a singular value decomposition method using a photon-counting X-ray CT
Ryo Ito; Koichi Ogawa
2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop, NSS/MIC/RTSD 2016, 16 Oct. 2017, [Reviewed] - Multi-pinhole SPECT system with a triple head gamma camera
Hayao Kubota; Yutaro Hemuki; Nobutoku Motomura; Koichi Ogawa
2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop, NSS/MIC/RTSD 2016, 16 Oct. 2017, [Reviewed] - Improvement of Dose Calculation with Scattered Photon-Corrected kV Cone-Beam CT Image Using the Kernel Deconvolution Method
K. Usui; S. Kubota; K. Sasai; and K. Ogawa
Int’l J Radiation Oncology, 25 Sep. 2017, [Reviewed] - Evaluation of delivered dose distribution with intra-fractional motion using biplanar diode array detector in helical tomotherapy system
Keisuke Usui; Naoto Shikama; Keisuke Sasai and Koichi Ogawa
Proc. of Korea Japan Joint meeting on Medical Physics 2017, 15 Sep. 2017, [Reviewed] - Evaluation of delivered dose distribution with intra-fractional motion using biplanar diode array detector in helical tomotherapy system
Keisuke Usui; Koichi Ogawa; Naoto Shikama; Keisuke Sasai
Medical Physics, 15 Sep. 2017, [Reviewed] - Analysis of Dose Calculation Accuracy in Cone Beam Computed Tomography with Various Amount of Scattered Photon Contamination
Keisuke Usui; Koichi Ogawa; Keisuke Sasai
International Journal of Medical Physics, Clinical Engineering and Radiation Oncology, Jun. 2017, [Reviewed] - Discrimination of Metallic Objects in Dental Panoramic X-ray Image with a Photon Counting Technique and an Artificial Neural Network
Akihiro Yasuda; Koichi Ogawa; Tatsumasa Fukui; Akihisa Katsumata
International Forum on Medical Imaging in Asia (IFMIA), 19 Jan. 2017, [Reviewed] - Imaging of Single Pinhole SPECT with a TEW Scatter Correction
Xiaona Shan; Yutaro Hemuki; Koichi Ogawa
International Forum on Medical Imaging in Asia (IFMIA), Jan. 2017, [Reviewed] - Quantitative Estimation of Activities in a Tc-99m/In-111 Small Animal SPECT Study
Koichi Ogawa; Satoshi Endo; Izumi O. Umeda; Hirofumi Fujii
Eur. J. Nucl. Med. Mol. Imaging, 15 Oct. 2016 - Analyzing the Effect of Scattered Photons on Cone Beam Computed Tomography–Based Adaptive Radiation Therapy
K. Usui; T. Inoue; C. Kurokawa; S. Sugimoto; K. Sasai; K. Ogawa
International Journal of Radiation Oncology*Biology*Physics, Oct. 2016 - SU-F-J-70: Monte Carlo Study On a Cone-Beam Computed Tomography Using a Cross-Type Carbon Fiber Antiscatter Grid
K Usui; T Inoue; C Kurokawa; S Sugimoto; K Sasai; K Ogawa
Medical Physics, Jun. 2016 - Impact of the infrared monitor signal pattern on accuracy of target imaging in 4-dimensional cone-beam computed tomography
臼井桂介; 原直哉; 礒邉哲; 井上達也; 黒河千恵; 杉本聡; 笹井啓資; 尾川浩一
日本放射線技術学会雑誌, 01 Jun. 2016, [Reviewed] - The cadmium telluride photon counting sensor in panoramic radiology: gray value separation and its potential application for bone density evaluation
Robert Langlais; Akitoshi Katsumata; Sudeshni Naidoo; Koichi Ogawa; Tatsumasa Fukui; Shinji Shimoda; Kaoru Kobayashi
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY, Nov. 2015, [Reviewed] - ピクセル型半導体X線検出器に於けるデッドピクセル判定
貝吹 太志; 尾川 浩一
MEDICAL IMAGING TECHNOLOGY, Jul. 2015 - Usefulness of an energy-binned photon-counting x-ray detector for dental panoramic radiographs
Tatsumasa Fukui; Akitoshi Katsumata; Koichi Ogawa; Shuu Fujiwara
MEDICAL IMAGING 2015: PHYSICS OF MEDICAL IMAGING, 2015, [Reviewed] - Acceleration of Image Reconstruction with a Ray-Driven Method Using a GPGPU
Ryo Ito; Koichi Ogawa
2015 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC), 2015, [Reviewed] - Development of high-precision color gamma-ray image sensor based on TSV-MPPC and diced scintillator arrays
Tsubasa Oshima; Jun Kataoka; Aya Kishimoto; Takuya Fujita; Yota Kurei; Toru Nishiyama; Seiichi Yamamoto; Koichi Ogawa
2015 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC), 2015, [Reviewed] - Visualization of a Target Positions Using the 4 Dimensional Cone-beam CT Image Reconstruction with the Extracorporeal Infrared Monitor
Keisuke Usui; Naoya Hara; Tatsuya Inoue; Toru Kawabata; Hironori Nagata; Chie Kurokawa; Satoru Sugimoto; Keisuke Sasai; Koichi Ogawa
2015 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC), 2015, [Reviewed] - ウェーブレット変換を用いたPET画像のノイズ除去
貝吹 太志; 尾川 浩一
MEDICAL IMAGING TECHNOLOGY, Jul. 2014 - Simulation study on a stationary data acquisition SPECT system with multi-pinhole collimators attached to a triple head gamma camera system
Koichi Ogawa; Yuta Ichimura
Ann Nucl Med, 01 Jun. 2014, [Reviewed] - 放射線治療用イメージングシステムを用いた動きを伴う標的に対するCBCT画像再構成
臼井桂介; 黒河千恵; 杉本聡; 株木重人; 国枝悦夫; 笹井啓資; 尾川浩一
Med Imag Tech, 01 May 2014, [Reviewed] - Registration of Two Dental Panoramic Radiographs
Jyunpei Yamamoto; Masatoshi Yanase; Akitoshi Katsumata
Open Journal of Medical Imaging, 14 Mar. 2014, [Reviewed] - 核医学技術の基礎―ガンマカメラにおけるコリメータの基礎
臨床核医学, 20 Jan. 2014 - フォトンカウンティングCT
医学物理, 15 Jan. 2014 - Removal of the Shadow of Cervical Vertebrae from Panoramic X-ray Images with a Tomosynthesis Method
Koichi Ogawa; Jyunpei Yamamoto; Masatoshi Yanase; Akitoshi Katsumata
Open Journal of Medical Imaging, 01 Dec. 2013, [Reviewed] - 半導体マルチピンホール頭部SPECTシステムの開発 実験による検討
尾川 浩一; 梅田 泉; 藤井 博史
核医学, Sep. 2013 - 適応的放射線治療のためのCBCT 画像を用いた放射線治療計画の評価
臼井桂介; 国枝悦夫; 尾川浩一
Medical Imaging Technology, 01 Sep. 2013, [Reviewed] - Aperture correction with an asymmetrically trimmed Gaussian weight in SPECT with a fan-beam collimator
Ryo Kamiya; Koichi Ogawa
ANNALS OF NUCLEAR MEDICINE, Aug. 2013, [Reviewed] - Simultaneous dual-isotope imaging based on an artificial neural network for evaluating myocardial perfusion and fatty acid metabolism
Jun Hashimoto; Koichi Ogawa; Jingming Bai; Atsushi Kubo; Yutaka Imai
JOURNAL OF NUCLEAR CARDIOLOGY, Jun. 2013, [Reviewed] - K-edge imaging with a photon counting CT system
Mariko Matsumoto; Futoshi Kaibuki; Koichi Ogawa
IEEE Nuclear Science Symposium Conference Record, 2013, [Reviewed] - CBCT image reconstruction of a moving target with an on-board imaging system for radiation therapy
Keisuke Usui; Shigeto Kabuki; Chie Kurokawa; Satoru Sugimoto; Keisuke Sasai; Etsuo Kunieda; Koichi Ogawa
IEEE Nuclear Science Symposium Conference Record, 2013, [Reviewed] - Dose calculation with a cone beam CT image in image-guided radiation therapy
Keisuke Usui; Yasunobu Ichimaru; Yasuhiro Okumura; Katsuki Murakami; Makoto Seo; Etsuo Kunieda; Koichi Ogawa
Radiological Physics and Technology, Jan. 2013, [Reviewed] - Motion detection system accelerated by GPU for stereotactic radiosurgery
Takuya Yamakawa; Koichi Ogawa; Hitoshi Iyatomi; Etsuo Kunieda; Keisuke Usui; Naoyuki Shigematsu
Med. Imag. Tech, 01 Dec. 2012, [Reviewed] - Automated Reconstruction Algorithm for Identification of 3D Architectures of Cribriform Ductal Carcinoma In Situ
Kerri-Ann Norton; Sameera Namazi; Nicola Barnard; Mariko Fujibayashi; Gyan Bhanot; Shridar Ganesan; Hitoshi Iyatomi; Koichi Ogawa; Troy Shinbrot
PLOS ONE, Sep. 2012, [Reviewed] - Tc-99mおよびIn-111同時データ収集におけるニューラルネットワークを用いたプライマリ光子の推定
尾川 浩一; 小池 悠介; 梅田 泉; 藤井 博史
核医学, Aug. 2012 - 位相限定相関法を用いた単眼カメラ画像からの顔三次元形状復元
原信宏; 尾川浩一
電子情報通信学会医用画像研究会、信学技報, Feb. 2012 - Accuracy of linear attenuation coefficients measured with a photon counting CT system
Toru Kobayashi; Koichi Ogawa; Futoshi Kaibuki; Tsutomu Yamakawa; Tatsuya Nagano; Daisuke Hashimoto
IEEE Nuclear Science Symposium Conference Record, 2012, [Reviewed] - Development of a multi-pinhole brain SPECT system with CdZnTe semiconductor detectors
Takanori Donai; Koichi Ogawa; Yoshiyuki Nyui; Masahiro Fukushi
IEEE Nuclear Science Symposium Conference Record, 2012, [Reviewed] - Advantages of Energy-Binned Photon Counting Detector
K. Ogawa; T. Kobayashi; F. Kaibuki; T. Yamakawa; T. Nagano; D. Hashimoto; H. Nagaoka
5TH EUROPEAN CONFERENCE OF THE INTERNATIONAL FEDERATION FOR MEDICAL AND BIOLOGICAL ENGINEERING, PTS 1 AND 2, 2012 - Development of an energy-binned photon-counting detector for X-ray and gamma-ray imaging
Koichi Ogawa; Toru Kobayashi; Futoshi Kaibuki; Tsutomu Yamakawa; Tatsuya Nagano; Daisuke Hashimoto; Hideyuki Nagaoka
Nucl Inst Meth Phy Res A, Jan. 2012, [Reviewed] - Adaptive noise reduction of scintigrams with a wavelet transform
Koichi Ogawa; Masahiko Sakata; Yu Li
International Journal of Biomedical Imaging, 2012, [Reviewed] - Comparison of de-noising methods with a wavelet transform for low dose x-ray images
Yu Li and Koichi Ogawa
Proceedings of the 6th Japan-Korea Joint Meeting on Medical Physics, Sep. 2011, [Reviewed] - Temporal image processing of dental panoramic images
Masatoshi Yanase; Koichi Ogawa; Futoshi Kaibuki; Akihiko Katsumata; Tatsuya Nagano; Daisuke Hashimoto; Hideyuki Nagaoka; and Tsutomu Yamakawa
Proceedings of the 6th Japan-Korea Joint Meeting on Medical Physics, Sep. 2011, [Reviewed] - Feasibility of kV-CBCT images for the dose calculation in image-guided radiotherapy
Keisuke Usui; Ayaka Kihara; Yasunobu Ichimaru; Yasuhiro Okumura; Katsuki Murakami; Etsuo Kunieda; Koichi Ogawa
Proceedings of the 6th Japan-Korea Joint Meeting on Medical Physics, Sep. 2011, [Reviewed] - Aperture correction in a fanbeam SPECT system
Ryo Kamiya and Koichi Ogawa
Proceedings of the 6th Japan-Korea Joint Meeting on Medical Physics, Sep. 2011, [Reviewed] - Alignment of CdTe semiconductor modular detectors for computed tomography
Futoshi Kaibuki; Toru Kobayashi; Koichi Ogawa; Daisuke Hashimoto; Hideyuki Nagaoka; Tatsuya Nagano and Tsutomu Yamakawa
Proceedings of the 6th Japan-Korea Joint Meeting on Medical Physics, Sep. 2011, [Reviewed] - Brain SPECT system with multi-pinhole collimators
Takanori Donai; Yusuke Hoshiyama; Koichi Ogawa
Proceedings of the 6th Japan-Korea Joint Meeting on Medical Physics, Sep. 2011, [Reviewed] - Longitudinal imaging with a pseudo inverse matrix
Masahiro Kawabe and Koichi Ogawa
Proceedings of the 6th Japan-Korea Joint Meeting on Medical Physics, Sep. 2011, [Reviewed] - Initial evaluation of linear and spatially oriented planar images from a new dental panoramic system based on tomosynthesis
43.Akitoshi Katsumata; Koichi Ogawa; Keisuke Inukai; Masato Matsuoka; Tatsuya Nagano; Hideyuki Nagaoka; Tsutomu Yamakawa
Oral Surg Oral Med Oral Pathol Oral Radiol Endod, Aug. 2011, [Reviewed] - Denoising of low-dose x-ray images with a wavelet transform
Masahiko Sakata; Yoshiyuki Nyui and Masahiro Fukushi
Proc. of the 18th International Conference on Medical Physics (ICMP), Apr. 2011, [Reviewed] - Noise Reduction of Low Dose X-ray Images with Wavelet Shrinkage
Koichi Ogawa; Yu Lee; Masahiko Sakata
Annual Meeting on European Congress of Radiology, Mar. 2011, [Reviewed] - Material Discrimination with an Energy Binned X-ray CT
Koichi Ogawa; Shota Nakamura; Tatsuma Hirokawa
Annual Meeting on European Congress of Radiology, Mar. 2011, [Reviewed] - Determining a geometry of a dental x-ray system required for a pseudo three dimensional display of panoramic images
Takeru Yamada; Koichi Ogawa; Hideyuki Nagaoka; Tsutomu Yamakawa
Proceedings of International Forum on Medical Imaging in Asia (IFMIA), Jan. 2011, [Reviewed] - Comparison of a pixilated semiconductor detector and a non-pixelated scintillation detector in pinhole SPECT system for small animal study
Hirokazu Iida; Koichi Ogawa
Annals of Nuclear Medicine, Jan. 2011, [Reviewed] - Pre-clinical evaluation of a new dental panoramic radiographic system based on tomosynthesis method
M. Noujeim; T. Prihoda; W. D. McDavid; K. Ogawa; K. Seki; T. Okano; T. Sue; R. P. Langlais
DENTOMAXILLOFACIAL RADIOLOGY, Jan. 2011, [Reviewed] - Robust Video-oculography for Non-invasive Autonomic Nerve Quantification
Masaru Kiyama; Hitoshi Iyatomi; Koichi Ogawa
2011 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC), 2011, [Reviewed] - Feasibility Evaluation of a Motion Detection System with Face Images for Stereotactic Radiosurgery
Takuya Yamakawa; Koichi Ogawa; Hitoshi Iyatomi; Etsuo Kunieda
2011 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC), 2011, [Reviewed] - Electron-tracking Compton gamma-ray camera for small animal and phantom imaging
Shigeto Kabuki; Hiroyuki Kimura; Hiroo Amano; Yuji Nakamoto; Hidetoshi Kubo; Kentaro Miuchi; Shunsuke Kurosawa; Michiaki Takahashi; Hidekazu Kawashima; Masashi Ueda; Tomohisa Okada; Atsushi Kubo; Etuso Kunieda; Tadaki Nakahara; Ryota Kohara; Osamu Miyazaki; Tetsuo Nakazawa; Takashi Shirahata; Etsuji Yamamoto; Koichi Ogawa; Kaori Togashi; Hideo Saji; Toru Tanimori
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Nov. 2010, [Reviewed] - A 3-dimensional mathematic cylinder phantom for the evaluation of the fundamental performance of SPECT
Hideo Onishi; Nobutoku Motomura; Masaaki Takahashi; Masamichi Yanagisawa; Koichi Ogawa
Journal of Nuclear Medicine Technology, Mar. 2010, [Reviewed] - Feasibility Study on an Ultra-High-Resolution SPECT With CdTe Detectors
Koichi Ogawa; Masaaki Muraishi
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Feb. 2010, [Reviewed] - Imaging study of a phantom and small animal with a two-head electron-tracking Compton gamma-ray camera
Shigeto Kabuki; Hiroyuki Kimura; Hiroo Amano; Yuji Nakamoto; Hidetoshi Kubo; Kentaro Miuchi; Shunsuke Kurosawa; Hidekazu Kawashima; Masashi Ueda; Koichi Ogawa; Kaori Togashi; Hideo Saji; Toru Tanimori; Tomohisa Okada; Michiaki Takahashi
IEEE Nuclear Science Symposium Conference Record, 2010, [Reviewed] - Identification of a material with a photon counting x-ray CT system
Koichi Ogawa; Tatsuma Hirokawa; Shota Nakamura
IEEE Nuclear Science Symposium Conference Record, 2010, [Reviewed] - New myocardial SPECT system with CdZnTe semiconductor detectors
Koichi Ogawa; Yuta Ozaku; Yoshiyuki Nyui; Masahiro Fukushi
IEEE Nuclear Science Symposium Conference Record, 2010, [Reviewed] - Development of a new dental panoramic radiographic system based on a tomosynthesis method
K. Ogawa; R. P. Langlais; W. D. McDavid; M. Noujeim; K. Seki; T. Okano; T. Yamakawa; T. Sue
Dentomaxillofacial Radiology, 2010, [Reviewed] - Classification of melanocytic skin lesions from non-melanocytic lesions
Hitoshi Iyatomi; Kerri-Ann Norton; M. Emre Celebi; Gerald Schaefer; Masaru Tanaka; Koichi Ogawa
2010 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC), 2010, [Reviewed] - Development of a Novel Border Detection Method for Melanocytic and Non-Melanocytic Dermoscopy Images
Kerri-Ann Norton; Hitoshi Iyatomi; M. Emre Celebi; Gerald Schaefer; Masaru Tanaka; Koichi Ogawa
2010 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC), 2010, [Reviewed] - New Myocardial SPECT System with CdZnTe Semiconductor Detectors
Koichi Ogawa; Yuta Ozaku; Yoshiyuki Nyui; Masahiro Fukushi
2010 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD (NSS/MIC), 2010, [Reviewed] - Correction of Patient Movement with a Phase-Only Correlation Method in a SPECT Study
Ryusuke Ando; Koichi Ogawa
2010 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD (NSS/MIC), 2010 - Identification of a Material with a Photon Counting X-Ray CT System
Koichi Ogawa; Tatsuma Hirokawa; Shota Nakamura
2010 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD (NSS/MIC), 2010, [Reviewed] - Imaging Study of a Phantom and Small Animal with a Two-Head Electron-Tracking Compton Gamma-Ray Camera
Shigeto Kabuki; Hiroyuki Kimura; Hiroo Amano; Yuji Nakamoto; Hidetoshi Kubo; Kentaro Miuchi; Shunsuke Kurosawa; Michiaki Takahashi; Hidekazu Kawashima; Masashi Ueda; Tomohisa Okada; Koichi Ogawa; Kaori Togashi; Hideo Saji; Toru Tanimori
2010 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD (NSS/MIC), 2010, [Reviewed] - Computerized quantification of psoriasis lesions with colour calibration: preliminary results
H. Iyatomi; H. Oka; M. Hagiwara; A. Miyake; M. Kimoto; K. Ogawa; M. Tanaka
CLINICAL AND EXPERIMENTAL DERMATOLOGY, Oct. 2009, [Reviewed] - Development of an ultra-high resolution SPECT system with a CdTe semiconductor detector
Koichi Ogawa; Naoka Ohmura; Hirokazu Iida; Kayoko Nakamura; Tadaki Nakahara; Atsushi Kubo
ANNALS OF NUCLEAR MEDICINE, Oct. 2009, [Reviewed] - Radiosurgical Treatment Planning for Intracranial AVM Based on Images Generated by Principal Component Analysis : A Simulation Study
KAWAGUCHI Osamu; NYUI Yoshiyuki; KUNIEDA Etsuo; ONOZUKA Satoshi; TSUKAMOTO Nobuhiro; FUKADA Junichi; OHASHI Toshio; HASHIMOTO Subaru; OGAWA Koichi; KUBO Atsushi
Keio J. Med., 01 Mar. 2009 - Development of a prototype semiconductor gamma-camera system
Koichi Ogawa; Takumi Ishikawa; Keisei Shuto; Hiroaki Kobayashi; Tadaki Nakahara; Naoyuki Shigematsu
IEEE Nuclear Science Symposium Conference Record, 2009 - Motion detection system with three USB cameras and an active search algorithm for stereotactic radiosurgery
K. Ogawa; G. Mamiya; H. Iyatomi; Y. Oku; E. Kunieda
IFMBE Proceedings, 2009 - Perioperative cardiac risk prediction
Hitoshi Iyatomi; Tomotaka Kasamatsu; Jun Hashimoto; M. Emre Celebi; Gerald Schaefer; Koichi Ogawa
Final Program and Abstract Book - 9th International Conference on Information Technology and Applications in Biomedicine, ITAB 2009, 2009, [Reviewed] - Imaging reagents study for nuclear medicine using an electron-tracking compton gamma-ray camera
Shigeto Kabuki; Hiroyuki Kimura; Hiroo Amano; Yuji Nakamoto; Hidetoshi Kubo; Kentaro Miuchi; Shunsuke Kurosawa; Michiaki Takahashi; Hidekazu Kawashima; Masashi Ueda; Tomohisa Okada; Koichi Ogawa; Kaori Togashi; Hideo Saji; Toru Tanimori
IEEE Nuclear Science Symposium Conference Record, 2009, [Reviewed] - Simulation study on the diverging SPECT system with a semiconductor detector
Tatsuya Kusayanagi; Koichi Ogawa
IEEE Nuclear Science Symposium Conference Record, 2009, [Reviewed] - Noise reduction and contrast enhancement for small-dose X-ray images in wavelet domain
Masahiko Sakata; Koichi Ogawa
IEEE Nuclear Science Symposium Conference Record, 2009, [Reviewed] - CdTe 検出器を用いた超高空間分解能SPECT システム―基本性能の評価－
尾川浩一; 大村尚加; 中原理紀; 久保敦司
Med Imag Tech, Jan. 2009, [Reviewed] - Application of Support Vector Machine Classifiers to Preoperative Risk Stratification With Myocardial Perfusion Scintigraphy
KASAMATSU Tomotaka; HASHIMOTO Jun; IYATOMI Hitoshi; NAKAHARA Tadaki; BAI Jingming; KITAMURA Naoto; OGAWA Koichi; KUBO Atsushi
JAPANESE CIRCULATION JOURNAL, 20 Nov. 2008 - An improved Internet-based melanoma screening system with dermatologist-like tumor area extraction algorithm
Hitoshi Iyatomi; Hiroshi Oka; M. Emre Celebi; Masahiro Hashimoto; Masafumi Hagiwara; Masaru Tanaka; Koichi Ogawa
COMPUTERIZED MEDICAL IMAGING AND GRAPHICS, Oct. 2008, [Reviewed] - Computer-based classification of dermoscopy images of melanocytic lesions on acral volar skin
Hitoshi Iyatomi; Hiroshi Oka; M. Emre Celebi; Koichi Ogawa; Giuseppe Argenziano; H. Peter Soyer; Hiroshi Koga; Toshiaki Saida; Kuniaki Ohara; Masaru Tanaka
JOURNAL OF INVESTIGATIVE DERMATOLOGY, Aug. 2008, [Reviewed] - CdTe半導体検出器を用いた超高分解能X線CTシステム
吉竹純平; 尾川浩一
電子情報通信学会誌, Jan. 2008, [Reviewed] - 脳動静脈奇形のための新しいデータ収集法と映像化法の提案
乳井嘉之; 高橋元気; 尾川浩一; 国枝悦夫
Med. Imag. Tech, Oct. 2007, [Reviewed] - CdZnTe半導体検出器を用いたガンマカメラシステム
尾川浩一; 太田敦; 斉藤裕太; 首藤経世; 本村信篤; 小林弘明; 牧野俊一郎; 中原理紀; 久保敦司
Med. Imag. Tech., Sep. 2007, [Reviewed] - 前立腺密封小線源療法におけるI-125線源の映像化
乳井嘉之; 尾川浩一; 国枝悦夫
Med. Imag. Technol, May 2007, [Reviewed] - Multi head compton camera system for nuclear medicine: Simulation study
T. Shirahata; R. Kohara; T. Nakazawa; T. Tanimori; K. Ogawa; H. Kubo; S. Kabuki; O. Miyazaki
IEEE Nuclear Science Symposium Conference Record, 2007, [Reviewed] - Development of a digital phantom for evaluation of fundamental performance on SPECT
Nobutoku Motomura; Koichi Ogawa; Miho Shidahara; Hideo Onishi
IEEE Nuclear Science Symposium Conference Record, 2007, [Reviewed] - Acquiring localization of permanent radioactive sources (I-125) in prostate brachytherapy
Yoshiyuki Nyui; Koichi Ogawa; Etsuo Kunieda
IEEE Nuclear Science Symposium Conference Record, 2007, [Reviewed] - 少数方向の投影データを用いた４次元の脳血管画像の再構成の試み
高橋元気; 乳井嘉之; 尾川浩一; 川口修; 国枝悦夫
信学技報, Jan. 2007, [Reviewed] - Scatter correction based on an artificial neural network for Tc-99m and I-123 dual-isotope SPECT in myocardial and brain imaging
Jingming Bai; Jun Hashimoto; Koichi Ogawa; Tadaki Nakahara; Takayuki Suzuki; Atsushi Kubo
ANNALS OF NUCLEAR MEDICINE, Jan. 2007, [Reviewed] - Advanced Compton cameraにおける画像再構成法の提案
栗原孝史; 尾川浩一
Med. Imag. Techno, Jan. 2007, [Reviewed] - Use of scatter correction in quantitative I-123 MIBG scintigraphy for differentiating patients with Parkinsonism: Results from phantom experiment and clinical study
J. Bai; J. Hashimoto; T. Suzuki; T. Nakahara; A. Kubo; M. Ohira; M. Takao; K. Ogawa
World Journal of Nuclear Medicine, Jan. 2007, [Reviewed] - Effect of scatter and attenuation correction in ROI analysis of brain perfusion scintigraphy - Phantom experiment and clinical study in patients with unilateral cerebrovascular disease
J. Bai; J. Hashimoto; K. Ogawa; A. Kubo; A. Fukunaga; S. Onozuka
NUKLEARMEDIZIN-NUCLEAR MEDICINE, 2007, [Reviewed] - Identification of Blue Nevus in Internet-based Melanoma Diagnostic System
IYATOMI Hitoshi; TANAHASHI Yuki; OKA Hiroshi; KIMOTO Masayuki; MIYAKE Ayako; TANAKA Masaru; OGAWA Koichi
Medical Imaging Technology, 25 Nov. 2006 - Development of a collimator blurring compensation method using fine angular sampling projection data in SPECT
N Motomura; K Nambu; A Kojima; S Tomiguchi; K Ogawa
ANNALS OF NUCLEAR MEDICINE, May 2006, [Reviewed] - Analytical correction methods for aperture and attenuation effects in SPECT
A Ishikawa; K Ogawa
ELECTRONICS AND COMMUNICATIONS IN JAPAN PART III-FUNDAMENTAL ELECTRONIC SCIENCE, 2006, [Reviewed] - Influence of photon scattering and attenuation on ROI analysis in brain perfusion single-photon emission tomographic imaging of normal subjects
J Bai; J Hashimoto; K Ogawa; A Kubo; A Fukunaga; S Onozuka; K Uchida
ANNALS OF NUCLEAR MEDICINE, Oct. 2005, [Reviewed] - 可搬型ガンマカメラを用いた副甲状腺病変の術中イメージングに関する基礎的検討
藤井博史; 尾川浩一; 田中智香子; 中原理紀; 高山純一; 高見博; 土持眞; 久保敦司
内分泌外科, Jun. 2005, [Reviewed] - Evaluation of iterative methods for aperture correction in SPECT
Nobuhiro Haruta; Koichi Ogawa
Systems and Computers in Japan, Feb. 2005 - An Internet-based melanoma diagnostic system - Toward the practical application
H Iyatomi; H Oka; M Hashimoto; M Tanaka; K Ogawa
Proceedings of the 2005 IEEE Symposium on Computational Intelligence in Bioinformatics and Computational Biology, 2005, [Reviewed] - 検出器応答および吸収を補正する逐次近似的画像再構成法による楕円型SPECTデータ収集軌道の評価
春多伸洋; 尾川浩一
Med. Imag. Tech.、vol.23(1), Jan. 2005, [Reviewed] - SPECT における解析的不均一吸収補正―逐次近似的手法との比較―
石川亮; 尾川浩一
Med. Imag. Tech.、vol.22(4), Sep. 2004, [Reviewed] - 悪性黒色腫自動診断システムのためのダーモスコピー画像からの腫瘍領域抽出
彌冨仁; 岡博史; 橋本正弘; 田中勝; 萩原将文; 尾川浩一
Med. Imag. Tech.、vol.22(4), Sep. 2004, [Reviewed] - Sentinel nodeをめぐる画像診断の新技術
藤井博史; 北川雄光; 池田正; 尾川浩一; 中原理紀; 中村佳代子; 北島正樹; 久保敦司
臨床外科,vol.59(5), May 2004, [Reviewed] - Quantification of I-123 and Tc-99m in dual-isotope SPECT with an artificial neural network
M. Ishii; K. Ogawa; T. Nakahara; J. Hashimoto; A. Kubo
Med. Imag. Tech.,vol.22(3), May 2004, [Reviewed] - The performance of data acquisition scheme in a new myocardial SPECT system
N. Kobayashi; K. Ogawa; N. Motomura; H. Fujii; A. Kubo
Med. Imag. Tech.、vol.22(2), Mar. 2004, [Reviewed] - 不均一吸収体の解析的吸収補正の実装と評価
石川亮; 尾川浩一
Med. Imag. Tech.、vol.22(2), Mar. 2004, [Reviewed] - Simulation study on a photon counting X-ray CT system
K Ogawa; H Shibusawa; Y Harata; T Yamakawa
2004 IEEE Nuclear Science Symposium Conference Record, Vols 1-7, 2004, [Reviewed] - Image reconstruction with a source space tree algorithm for Compton CT
Koichi Ogawa; Jin Ohta
Systems and Computers in Japan, vol.34(11), Nov. 2003 - Wired collimator for single photon emitter
K Ogawa; J Kato
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Oct. 2003, [Reviewed] - I-125を用いた前立腺癌の放射線治療における線源位置の取得
尾川浩一; 乳井嘉之
医学物理, vol.23(2), Oct. 2003, [Reviewed] - 多変量解析を用いた脳動静脈奇形領域の映像化
乳井嘉之; 尾川浩一; 国枝悦夫; 川口修
日本放射線技術学会雑誌、vol.63(6), Aug. 2003, [Reviewed] - Visualization of intracranial arteriovenous malformation using multivariate analysis
Nyui Yoshiyuki; Ogawa Koichi; Kunieda Etsuo; Kawaguchi Osamu
Nippon Acta Radiologica, 25 Jul. 2003, [Reviewed] - 六角格子とblobを用いた画像再構成
薮下敦士; 尾川浩一
Med. Imag. Tech.、vol.21(3), Mar. 2003, [Reviewed] - Obtaining location of I-125 seed sources for the prostate brachytherapy
Koichi Ogawa; Yoshiyuki Nyui
Igaku butsuri : Nihon Igaku Butsuri Gakkai kikanshi = Japanese journal of medical physics : an official journal of Japan Society of Medical Physics, 2003 - Separation of two radionuclides in simultaneous 123I/ 99mTc SPECT with artificial neural networks
Masatoshi Ishii; Koichi Ogawa; Tadaki Nakahara; Jun Hashimoto; Atsushi Kubo
IEEE Nuclear Science Symposium Conference Record, 2003 - Evaluation of data acquisition scheme in a new myocardial SPECT system
Norihiko Kobayashi; Koichi Ogawa; Nobutoku Motomura; Hirofumi Fujii; Atsushi Kubo
IEEE Nuclear Science Symposium Conference Record, 2003 - ニューラルネットを用いた２核種分離についての実験的考察
石井正俊; 尾川浩一; 橋本順
信学技報, MI2002-125, Jan. 2003 - 心筋ＳＰＥＣＴにおける投影データの選択
小林紀彦; 尾川浩一
信学技報, MI2002-125, Jan. 2003 - Three-dimensional data acquisition with a semiconductor detector in SPECT
K. Ogawa; S. Ohno
IEEE Trans Nucl Sci, vol.50,1, Jan. 2003, [Reviewed] - 半導体検出器を搭載したイメージングプローブによるセンチネルリンパ節画像化の検討
藤井博史; 北川雄光; 池田正; 尾川浩一; 国枝悦夫; 中村佳代子; 中原理紀; 北島政樹; 久保敦司; 竹内康直; 流王英樹
臨床放射線 Vol.47, No.12, Dec. 2002, [Reviewed] - Selection of projection sets and order of calculation in ordered subsets expectation maximization method
Koichi Ogawa; Masahiro Takahashi
Systems and Computers in Japan, 30 Nov. 2002 - SPECTのための軽量コリメータの提案
尾川浩一; 加藤純也
信学技法 MI2002-3, Apr. 2002 - Collimator blurring reduction method using fine angular sampling projection data in SPECT
Nobutoku Motomura; Kyojiro Nambu; Akihiro Kojima; Seiji Tomiguchi; Koichi Ogawa
IEEE Nuclear Science Symposium and Medical Imaging Conference, 2002, [Reviewed] - Visualization of intracranial arteriovenous malformation with physiological information
Y Nyui; K Ogawa; E Kunieda
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Jun. 2001, [Reviewed] - Effective description of a 3D object for photon transportation in Monte Carlo simulation
R Suganuma; K Ogawa
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Jun. 2000, [Reviewed] - SPECT画像の散乱、吸収補正法についての比較
尾川浩一; 小野時成; 篠原広行; 西村恒彦
核医学 Vol.37(2), Mar. 2000, [Reviewed] - 多施設共同ファントム実験によるTc-99mSPECTの散乱・吸収補正の定量性評価
篠原広行; 尾川浩一; 中川原譲二; 冨口静二; 中島憲一
核医学 Vol.37(2), Mar. 2000, [Reviewed] - Quantitative evaluation for scatter and attenuation correction in 99mTc SPECT -Multicenter cooperation phantom study
Hiroyuki Shinohara; Koichi Ogawa; Jyoji Nakagawara; Seiji Tomiguchi; Kenichi Nakajima; Hidehiro Iida; Shin-Ichiro Kumita; Toshiisa Uehara; Junichi Nishikawa; Tsunehiko Nishimura; Tomoaki Yamamoto; Minoru Honda; Ichiei Kuji; Masato Yamada; Toshio Fukuda; Fujimi Kinoshita; Tomio Inoue; Takeyuki Hashimoto; Kazuo Ikegaya; Munehiro Takahashi
Kakuigaku, 2000, [Reviewed] - 直方体を用いた物体記述による高速な光子輸送計算
菅沼龍一; 尾川浩一
電子情報通信学会誌 Vol.J83-D-II(1), Jan. 2000, [Reviewed] - A new method for photon transport in Monte Carlo simulation
T Sato; K Ogawa
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Dec. 1999, [Reviewed] - OS-EMによる画像再構成
尾川浩一
放射線医学物理 Vol.19(3), Oct. 1999, [Reviewed] - Tc-MIBIによる副甲状腺シンチグラフィーの撮像法に関する研究
藤井博史; 岩崎隆一郎; 尾川浩一; 橋本順; 中村佳代子; 国枝悦夫; 三宮敏和; 久保敦司; 稲垣和敏
核医学 Vol.36(5), Jul. 1999, [Reviewed] - Ordered Subsetを用いた期待値最大化法における投影データの選択と計算順番が再構成画像に与える影響
尾川浩一; 高橋昌寛
電子情報通信学会誌 Vol.J82-D-II(6), Jun. 1999, [Reviewed] - Effects of scatter and attenuation correction on quantitative analysis of beta-CIT brain SPET
J Hashimoto; T Sasaki; K Ogawa; A Kubo; N Motomura; T Ichihara; T Amano; Y Fukuuchi
NUCLEAR MEDICINE COMMUNICATIONS, Feb. 1999, [Reviewed] - CT画像による脊髄形状の解析
櫻井清子; 尾川浩一
日骨形態誌 Vol.9(3), Feb. 1999, [Reviewed] - Computer-aided diagnostic system for diffuse liver diseases with ultrasonography by neural networks
K Ogawa; M Fukushima; K Kubota; N Hisa
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Dec. 1998, [Reviewed] - Ultra high resolution pinhole SPECT for small animal study.
K Ogawa; T Kawade; K Nakamura; A Kubo; T Ichihara
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Dec. 1998, [Reviewed] - Simultaneous acquisition of Iodine-123 emission and Technetium-99m transmission data for quantitative brain single-photon emission tomography imaging
K.Ogasawara; J.Hashimoto; K.Ogawa; A.Kubo; N.Motomura; H.Hasegawa; T.Ichihara
Eur J Nucl. Med. Vol.26(11), Nov. 1998, [Reviewed] - 核医学における放射性同位元素を用いたイメージング技術
尾川浩一
法政大学イオンビーム工学研究所報告 Vol.17, May 1998 - New system for linear accelerator radiosurgery with a gantry-mounted video camera
E.Kunieda; M.Kitamura; O.Kawaguchi; T.Ohira; K.Ogawa; Y.Ando; K.Nakamura; A.Kubo
Int. J. Radiation Oncology Biol. Phys., Vol.40（3）, Mar. 1998, [Reviewed] - Application of transmission scan-based attenuation compensation to scatter-corrected thallium-201 myocardial single-photon emission tomographic images
J Hashimoto; K Ogawa; A Kubo; T Ichihara; N Motomura; T Takayama; S Iwanaga; H Mitamura; S Ogawa
EUROPEAN JOURNAL OF NUCLEAR MEDICINE, Feb. 1998, [Reviewed] - Triple Energy Window散乱線補正方法における収集エネルギーウィンドウ設定方法の一般化
高山卓三; 市原隆; 本村信篤; 尾川浩一
核医学 Vol.35（2）, Feb. 1998, [Reviewed] - Development of a lead X-ray compensation method in simultaneous Tl-201 SPECT & Tc-99m TCT using a flood source
N Motomura; T Ichihara; H Hasegawa; K Ogawa; J Hashimoto; A Kubo
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Dec. 1997, [Reviewed] - Description of an object in Monte Carlo simulations
K Ogawa; S Takahashi; Y Satori
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Aug. 1997, [Reviewed] - Estimation of scattered photons in gamma ray transmission CT using Monte Carlo simulations.
K Ogawa; Y Kawamura; A Kubo; T Ichihara
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Jun. 1997, [Reviewed] - Reduction of distortion in spiral CT by tilted fan beam data acquisition
K Ogawa; Y Yamada; T Uno
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Jun. 1997, [Reviewed] - Scatter and attenuation correction in technetium-99m brain SPECT
J Hashimoto; A Kubo; K Ogawa; T Amano; Y Fukuuchi; N Motomura; T Ichihara
JOURNAL OF NUCLEAR MEDICINE, Jan. 1997, [Reviewed] - Evaluation of SPECT quantification of simultaneous emission and transmission imaging of the brain using a multi‐detector SPECTsystem with the TEW scatter compensation method and fan-beam collimation
T.Ichihara; N.Motomura; K.Ogawa; H.Hasegawa; J.Hashimoto; A.Kubo
Europ. J. of Nucl. Med., Vol.23(1), Oct. 1996, [Reviewed] - 3D－PETにおける空間上の厳密な検出確率を考慮した統計的画像再構成
佃研; 尾川浩一
電子情報通信学会誌 Vol.J79‐D‐II(10), Oct. 1996, [Reviewed] - 散乱、吸収補正による心筋SPECTの定量化
橋本順; 三宮敏和; 小笠原克彦; 久保敦司; 尾川浩一; 市原隆; 木村信篤; 長谷川兵治
核医学 Vol.33(9), Sep. 1996, [Reviewed] - SPECTにおけるγ線透過型CTの有効視野の拡大
尾川浩一; 久保敦司
核医学 Vol.33(9), Sep. 1996, [Reviewed] - Enlargement of effective field of view in gamma-ray transmission CT using a fan-beam geometry
Koichi Ogawa; Atsushi Kubo
Kakuigaku, 1996, [Reviewed] - Iterative correction method for shift-variant blurring caused by collimator aperture in SPECT
Koichi Ogawa
Annals of Nuclear Medicine, 1996, [Reviewed] - A new decision rule for parameter δ in MAP EM (OSL) reconstruction with the Gibbs prior
Koichi Ogawa; Keiichi Hiruma
Annals of Nuclear Medicine, 1996, [Reviewed] - A Monte Carlo method using octree structure in photon and electron transport
K Ogawa; S Maeda
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Dec. 1995, [Reviewed] - A PROPOSAL OF REMOVAL METHOD FOR T2 DECAY EFFECTS IN RARE SEQUENCE
H TAKAHASHI; K OGAWA; K OSHIO; H MOMOSHIMA
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Aug. 1995, [Reviewed] - 201TlCl，99mTc－MIBＩを用いた運動負荷、安静同時収集心筋シンチグラフィの試み
橋本順; 松田美智恵; 三宮敏和; 中村佳代子; 塚谷泰司; 久保敦司; 尾川浩一; 高橋栄一; 三田村秀雄; 半田俊之介; 小川聡; 市原隆
核医学 Vol.31 (11), Nov. 1994, [Reviewed] - Simulation study of triple-energy-window scatter correction in combined Tl-201,Tc-99m SPECT
Koichi Ogawa
Annal. Nucl. Med., Vol.8 (4), Aug. 1994, [Reviewed] - 子宮頸癌の放射線治療 特に線量分布の改善に関する考察
伊東久夫; 尾川浩一
臨床放射線 Vol.39 (6), Jun. 1994, [Reviewed] - 頭部SPECTにおける頭蓋骨で発生する散乱線の定量
前田繁; 尾川浩一
核医学 Vol.31 (5), May 1994, [Reviewed] - Accurate scatter correction in single photon emission CT
K. Ogawa; T. Ichihara; A. Kubo
Annals of Nuclear Medicine and Science, Mar. 1994, [Reviewed] - ニューラルネットワークを用いたSPECTにおける散乱線の推定
長谷川航; 尾川浩一
Medical Imaging Technology, Vol.12 (2), Feb. 1994, [Reviewed] - 1) Triple-Energy Window (TEW) 法を用いた 1 核種及び 2 核種 SPECT のためのコンプトン散乱線補正(ミニシンポジウム (I) : 散乱線除去 "TEW 法" を検証する)
市原 隆; 尾川 浩一; 久保 敦司
日本放射線技術学会雑誌, 1994 - 遮蔽したOvoid Applicatorを用いた高線量腔内照射併用による子宮頸癌放射線治療
伊東久夫; 沓木章二; 西口郁; 栗林徹; 中山俊威; 竹政和彦; 植松稔; 安藤裕; 尾川浩一
日本医学放射線学会雑誌 Vol.54 (1), Jan. 1994, [Reviewed] - COMPTON SCATTER COMPENSATION USING THE TRIPLE-ENERGY WINDOW METHOD FOR SINGLE-ISOTOPE AND DUAL-ISOTOPE SPECT
T ICHIHARA; K OGAWA; N MOTOMURA; A KUBO; S HASHIMOTO
JOURNAL OF NUCLEAR MEDICINE, Dec. 1993, [Reviewed] - 画像再構成の方法論に関して
尾川浩一
Medical Imaging Technology, Vol.11 (5), Nov. 1993, [Reviewed] - ACCURATE SCATTER COMPENSATION USING NEURAL NETWORKS IN RADIONUCLIDE IMAGING
K OGAWA; N NISHIZAKI
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Aug. 1993, [Reviewed] - 超音波Bモード画像における階層型ニューラルネットを用いた肝実 質性疾患の定量化の試み
尾川浩一; 久直史; 高石明
Medical Imaging Technology, Vol.11 (1), Jan. 1993, [Reviewed] - RALSにおけるアプリケータの形状に関する研究
北川五十雄; 尾川浩一; 砂岡正良; 中土井明子; 五味直人; 和田允; 伊東久夫; 橋本省三
日本医学放射線学会物理部会誌 Vol.12（1), Jun. 1992, [Reviewed] - Optimum contrast enhancement using fuzzy sets
Atsuhisa Saito; Masato Nakajima; Koichi Ogawa
Systems and Computers in Japan, 1991 - A Practical Method for Position-Dependent Compton-Scatter Correction in Single Photon Emission CT
Koichi Ogawa; Yasuo Harata; Takashi Ichihara; Atsushi Kubo; Shozo Hashimoto
IEEE Transactions on Medical Imaging, 1991, [Reviewed] - Clinical application of a magneto-optical disk image filing system/image save and carry (ISAC) system
Yutaka Ando; Koichi Ogawa; Shozo Hashimoto
Computer Methods and Programs in Biomedicine, 1991 - 123I-IMP-SPECTにおける収集カウントと画質の関係についての実験的考察
清水正三; 尾川浩一; 三宮敏和; 久保敦司; 橋本省三
核医学 Vol.27(12), Dec. 1990, [Reviewed] - モンテカルロ法を用いたSPECT画像における散乱線成分の推定
尾川浩一; 原田康雄; 市原隆; 久保敦司; 橋本省三
核医学 Vol.27(5), May 1990, [Reviewed] - 甲状腺専用コンバージングコリメータの試作
尾川浩一; 橋本順; 久保敦司; 橋本省三; 鈴木謙三; 類家俊充
核医学 Vol.27(4), Apr. 1990, [Reviewed] - Development of a converging collimator for thyroid scintigraphy
K. Ogawa; J. Hashimoto; A. Kubo; S. Hashimoto; K. Suzuki; T. Ruike
Kakuigaku, 1990 - Survival and disease-free curves including patients with incomplete follow-up
Koichi Ogawa; Makoto Kondo; Shozo Hashimoto
Japan Radiological Physics Vol.10(1), Jan. 1990, [Reviewed] - SPECTによる肺の画像再構成と肺組織容積の算定に関する基礎的検討
金沢実; 鈴木幸男; 藤島清太郎; 尾川浩一; 久保敦司; 橋本省三
核医学 Vol.26(10), Oct. 1989, [Reviewed] - Exploration on the reconstruction of lung image and the estimation of lung tissue volume by single photon emission computed tomography (SPECT)
M. Kanazawa; Y. Suzuki; S. Fujishima; T. Yokoyama; K. Ogawa; A. Kubo; S. Hashimoto
Kakuigaku, 1989 - デジタル胸部X線画像のデータ圧縮に伴う画質評価
安藤裕; 国枝悦夫; 尾川浩一; 塚本信宏; 橋本省三; 青木誠; 黒谷憲一
Medical Imaging Technology Vol.6(3), Aug. 1988, [Reviewed] - 99mTc-HM-PAOによる局所能血流シンチグラフィに関する基礎的および臨床的検討
塚谷泰司; 中村佳代子; 藤井博史; 万篤憲; 尾川浩一; 国枝悦夫; 久保敦司; 橋本省三; 寺山靖夫; 天野隆弘; 後藤文男; 三宮敏和; 清水正三; 桜田潤二
臨床放射線 Vol.33(7), Jul. 1988, [Reviewed] - デジタル胸部X線画像の離散コサイン変換を用いたデータ圧縮
尾川浩一; 橋本省三
病態生理 Vol.7(5), May 1988 - Suppression of artifacts caused by non-uniformity in gamma camera ECT
Koichi Ogawa; Atsushi Kubo; Shozo Hashimoto; Kenzo Suzuki
Medical Imaging Technology Vol.6(1), Jan. 1988, [Reviewed] - コリメータ開口特性によるECT画像の画質劣化の補正
白承権; 尾川浩一; 中島真人
核医学 Vol.24(10), Oct. 1987, [Reviewed] - SPECT装置の性能試験条件に関する検討
野上修二; 尾川浩一; 福士政広; 鈴木謙三
核医学 Vol.24(7), Jul. 1987, [Reviewed] - 心筋SPECT画像の定量性に関する問題点とその画質改善のための方策
尾川浩一; 国枝悦夫; 久保敦司; 橋本省三
Radioisotopes Vol.36(3), Mar. 1987, [Reviewed] - 右室圧付加疾患の201TI SPECTによる定量的評価
国枝悦男; 尾川浩一; 西口郁; 久保敦司; 橋本省三; 岩永史郎; 半田俊之介
核医学 Vol.24(2), Feb. 1987, [Reviewed] - シングルフォトンエミッションCTのための付加情報を用いない減衰補正法
草場律; 諸角建; 中島真人; 尾川浩一; 油田信一
電子通信学会論文誌 Vol.J70-D(1), Jan. 1987, [Reviewed] - 消息不明者の追跡調査と生存率曲線
尾川浩一; 近藤誠
癌の臨床 Vol.32(5), May 1986, [Reviewed] - SPECT用像再生アルゴリズムの比較
大山永昭; 尾川浩一; 大木繁; 井上壮一; 中島真人; 諸角建; 本田捷夫; 辻内順平
Medical Imaging Technology Vol.4(3), Mar. 1986, [Reviewed] - 放射線治療支援システムの開発
安藤裕; 国枝悦夫; 尾川浩一; 橋本省三
放射線システム研究 Voｌ.3, Feb. 1986, [Reviewed] - SPECTにおけるガンマカメラの不均一性に伴うアーチファクトの除去法
尾川浩一; 野上修二; 久保敦司; 橋本省三; 鈴木謙三
核医学 Vol.23(1), Jan. 1986, [Reviewed] - γ線による透過型CTデータを用いたシングルフォトンエミッションCTにおける吸収補正
尾川浩一; 高木八重子; 久保敦司; 橋本省三; 三宮敏和; 岡野義幸; 諸角建; 中島真人; 油田信一
核医学 Vol.22(4), Apr. 1985, [Reviewed] - 振幅値比を用いた左室逆流性弁膜疾患の逆流の定量的評価―駆出カウント比との比較―
小須田茂; 佐藤仁政; 与那原良夫; 安里哲好; 内藤政人; 西口郁; 尾川浩一; 久保敦司; 橋本省三
核医学 Vol.22(4), Apr. 1985, [Reviewed] - PROGNOSTIC FACTORS INFLUENCING RELAPSE OF SQUAMOUS-CELL CARCINOMA OF THE MAXILLARY SINUS
M KONDO; K OGAWA; Y INUYAMA; S YAMASHITA; S TOMINAGA; N SHIGEMATSU; NISHIGUCHI, I; S HASHIMOTO
CANCER, 1985, [Reviewed] - PROGNOSTIC FACTORS IN STAGE-I AND STAGE-II NON-HODGKINS LYMPHOMA OF WALDEYERS RING
M KONDO; A MIKATA; K OGAWA; Y INUYAMA; Y MURAKAMI; K TOYAMA; M UEMATSU; T NAKAYAMA; T KURIBAYASHI; S HASHIMOTO
ACTA RADIOLOGICA ONCOLOGY, 1985, [Reviewed] - 減衰の有無により計算される2つの投影の比を用いるSPECTのための減衰補正法
諸角建; 中島真人; 尾川浩一; 油田信一
電子通信学会論文誌 Vol.J67-D(7), Jul. 1984, [Reviewed] - 減衰分布情報を用いるシングルフォトエミッションCTのための減衰補正法
諸角建; 中島真人; 尾川浩一; 油田信一
Medical Imaging Technology Vol.2(1), Jan. 1984, [Reviewed] - A Reconstruction Algorithm from Truncated Projections
Koichi Ogawa; Masato Nakajima; Shin'ichi Yuta
IEEE Transactions on Medical Imaging, 1984, [Reviewed] - Single Photon Emission CTのための減衰補正法
諸角建; 尾川浩一; 中島真人; 油田信一
電子通信学会論文誌 Vol.J66-D(10), Oct. 1983, [Reviewed] - A RECONSTRUCTION ALGORITHM OF BODY SECTIONS WITH OPAQUE OBSTRUCTIONS
JS CHOI; K OGAWA; M NAKAJIMA; S YUTA
IEEE TRANSACTIONS ON SONICS AND ULTRASONICS, 1982, [Reviewed] - 不透明部位を含む体軸断層面の再構成アルゴリズム
崔宗秀; 尾川浩一; 中島真人
放射線像研究 Vol.10(3), Mar. 1980, [Reviewed]
- Low dose CT denoising using a pre-trained convolutional neural network
USUI Keisuke; USUI Keisuke; ISOBE Akira; ISOBE Akira; OGAWA Koichi
順天堂保健医療学雑誌(Web), 2021 - Dosimetric and Radiobiological Evaluation of Delivered Dose Distribution with Intra-Fractional Motion in Prostate Stereotactic Radiation Therapy Treatments Using VMAT and Helical Tomotherapy
K. Usui; J. Takatsu; K. Ogawa; N. Shikama; K. Sasai
International Journal of Radiation Oncology*Biology*Physics, Nov. 2018 - 画像診断におけるCT技術開発の動向―学識者の視点から
尾川浩一
エネルギーレビュー, 01 Nov. 2018, [Invited] - X線画像用ダブルスリットコリメータの試作
草苅 一平; 臼井 桂介; 尾川 浩一
日本医用画像工学会大会予稿集, Jul. 2017 - モンテカルロ法によるコーンビームCTへのクロス型カーボングリッドの有効性の検討
臼井 桂介; 井上 達也; 黒河 千恵; 杉本 聡; 笹井 啓資; 尾川 浩一
MEDICAL IMAGING TECHNOLOGY, Jul. 2016 - 体外式赤外線モニタを利用した放射線治療用コーンビームCTの4次元画像再構成
臼井 桂介; 原 直哉; 礒邉 哲; 川畑 徹; 永田 弘典; 井上 達也; 黒河 千恵; 杉本 聡; 笹井 啓資; 尾川 浩一
MEDICAL IMAGING TECHNOLOGY, Jul. 2015 - 半導体ガンマカメラの光と影
日本心臓核医学会誌, 02 Jul. 2014 - 動く標的のモーションアーチファクトに対するkV-CBCTのデータ取得条件の最適化
臼井 桂介; 黒河 千恵; 杉本 聡; 石倉 聡; 笹井 啓資; 尾川 浩一
MEDICAL IMAGING TECHNOLOGY, Jul. 2014 - 核医学技術の基礎ーガンマカメラにおけるガンマ線検出器の役割と特性
臨床核医学, 20 Feb. 2014 - An effect of the data acquisition conditions for the moving tumor affection to the reconstruction image with the kilo-voltage-CBCT.
臼井桂介; 臼井桂介; KUROKAWA Chie; SUGIMOTO Satoru; SASAI Keisuke; OGAWA Koichi
医学物理 Supplement, 2014 - The accuracy of reconstructed values from the projections in the low x-ray flux using a photon counting detector
貝吹太志; MATSUMOTO Mariko; OGAWA Koichi
医学物理 Supplement, 2014 - Identification of a region including metals in the projection data using an energy discriminating photon counting detector
Futoshi Kaibuki; Mariko Matsumoto; Koichi Ogawa; Akitoshi Katsumata; Tatsuma Fukui
2014 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC), 2014, [Reviewed] - Simulation Study of a Pinhole SPECT System with a Triple Head Gamma Camera
Yuta Ichimura; Koichi Ogawa
2014 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC), 2014, [Reviewed] - 半導体SPECTシステムの特徴と課題
RadFan, 01 Nov. 2013 - 動態位置の時相情報に基づいた4D CBCT画像再構成の基礎検討
臼井 桂介; 黒河 千恵; 杉本 聡; 株木 重人; 国枝 悦夫; 笹井 啓資; 尾川 浩一
MEDICAL IMAGING TECHNOLOGY, Aug. 2013 - Accurate measurement of activities using artificial neural network in the simultaneous dual-isotope SPECT study
K. Ogawa; I. O. Umeda; H. Fujii
Proc. of Annual Meeting on European Congress of Radiology, 07 Mar. 2013, [Reviewed] - Material Decomposition with a Photon Counting X-ray CT
K. Ogawa; M. Matsumoto; T. Maji; F. Kaibuki; T. Yamakawa
Proc. of Annual Meeting on European Congress of Radiology, 07 Mar. 2013, [Reviewed] - The effect of region extraction accuracy on the dose calculation with CBCT images combined with MSCT images
K. Usui; E. Kunieda; K. Ogawa
Proc. of Annual Meeting on European Congress of Radiology, 07 Mar. 2013, [Reviewed] - Feasibility of Dose Planning Using CBCT Images Combined with MSCT Images for Adaptive Radiotherapy
臼井桂介; 臼井桂介; 国枝悦夫; 尾川浩一
Medical Imaging Technology (Web), 2013 - Reconstruction of CT images with projection data including missing parts
貝吹太志; MATSUMOTO Mariko; OGAWA Koichi; MURATA Kan; HASHIMOTO Daisuke; NAGANO Tatsuya; YAMAKAWA Tsutomu
医学物理 Supplement, 2013 - Improvement of image quality in the advanced Compton camera
T. Masubuchi; K. Ogawa; S. Kabuki; T. Tanimori
IFMBE Proceedings, 2013, [Reviewed] - Diagnosis of periodontitis with the energy information in dental panoramic image
Y. Kanai; K. Ogawa; F. Kaibuki; A. Katsumata; T. Nagano; D. Hashimoto; H. Nagaoka; T. Yamakawa
IFMBE Proceedings, 2013, [Reviewed] - Quantitative measurement of physical value of materials with a dental panoramic radiograph
M. Yanase; K. Ogawa; F. Kaibuki; A. Katsumata; T. Nagano; D. Hashimoto; H. Nagaoka; T. Yamakawa
IFMBE Proceedings, 2013, [Reviewed] - Evaluation on pixel value conversion methods for dose calculation with kilo-voltage cone beam CT images
K. Usui; A. Kihara; Y. Ichimaru; Y. Okumura; K. Murakami; M. Seo; E. Kunieda; K. Ogawa
IFMBE Proceedings, 2013, [Reviewed] - CBCT Image Reconstruction of a Moving Target with an On-board Imaging System for Radiation Therapy
Keisuke Usui; Shigeto Kabuki; Chie Kurokawa; Satoru Sugimoto; Keisuke Sasai; Etsuo Kunieda; Koichi Ogawa
2013 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC), 2013, [Reviewed] - Extraction of Cervical Vertebrae from Panoramic X-ray images
Junpei Yamamoto; Masatoshi Yanase; Koichi Ogawa; Akihiro Katsumata
2013 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC), 2013, [Reviewed] - Multi-head Gamma Camera System with CdZnTe Semiconductor Detectors
Koichi Ogawa; Yuta Ichimura; Takanori Donai; Izumi O. Umeda; Hirofumi Fujii
2013 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC), 2013, [Reviewed] - Material Decomposition Using a Singular Value Decomposition Method
Takeshi Maji; Mariko Matsumoto; Futoshi Kaibuki; Koichi Ogawa
2013 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC), 2013, [Reviewed] - K-edge Imaging with a Photon Counting CT System
Mariko Matsumoto; Futoshi Kaibuki; Koichi Ogawa
2013 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC), 2013, [Reviewed] - Evaluation of CT images in the very low x-ray exposure with a photon counting detector with a CdTe semiconductor
Futoshi Kaibuki; Mariko Matsumoto; Koichi Ogawa
IEEE Nuclear Science Symposium Conference Record, 2013, [Reviewed] - Evaluation of a noise reduction method with a wavelet transform for low dose x-ray images using the channelized Hotelling observer,
Yu Li; K. Ogawa
Proc. of International Forum on Medical Imaging in Asia, 16 Nov. 2012, [Reviewed] - Improvement of the spatial resolution in a fanbeam SPECT
Ryo Kamiya; Koichi Ogawa
Proc. of International Forum on Medical Imaging in Asia (IFMIA), 16 Nov. 2012, [Reviewed] - マルチピンホール頭部SPECTシステムの開発 実験システムの評価
尾川 浩一; 乳井 嘉之; 福士 政広
核医学, Aug. 2012 - Performance Study of An Electron-Tracking Compton Camera for Medical Imaging
S. Kabuki; H. Kimura; H. Kubo; K. Ogawa; E. Kunieda; T. Tanimori
MEDICAL PHYSICS, Jun. 2012 - Feasibility of Dose Calculation Using Combined Information of Cone-Beam and Multi-Slice CT Images
K. Usui; K. Ogawa; E. Kunieda
MEDICAL PHYSICS, Jun. 2012 - イメージング技術がもたらす診療技術革新
映像情報メディカル, 01 Jun. 2012 - Determination of the Optimum Threshold Value in a Denoising Method with a Wavelet Transform
K. Matsumoto; K. Ogawa
World congress on medical physics and biomedical engineering, IFMBE proceedings, 26 May 2012, [Reviewed] - CBCTとMSCTの合成画像に対する領域抽出精度が線量計算に与える影響について
臼井桂介; 臼井桂介; 広木智之; 藤田健太; 一丸恭伸; 奥村康弘; 国枝悦夫; 尾川浩一
医学物理 Supplement, 2012 - Motion Detection System with GPU Acceleration for Stereotactic Radiosurgery
山川拓也; 尾川浩一; 彌冨仁; 国枝悦夫; 臼井桂介; 臼井桂介; 茂松直之
Medical Imaging Technology (Web), 2012 - Radiation Literacy
JIRA会報, 01 Jan. 2012 - Development of a Multi-pinhole Brain SPECT System with CdZnTe Semiconductor Detectors
Takanori Donai; Koichi Ogawa; Yoshiyuki Nyui; Masahiro Fukushi
2012 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE RECORD (NSS/MIC), 2012, [Reviewed] - Accuracy of Linear Attenuation Coefficients Measured with a Photon Counting CT System
Toru Kobayashi; Koichi Ogawa; Futoshi Kaibuki; Tsutomu Yamakawa; Tatsuya Nagano; Daisuke Hashimoto
2012 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE RECORD (NSS/MIC), 2012, [Reviewed] - 3D Architecture of Ductal Carcinoma in Situ from Image Reconstructions
Kerri-Ann Norton; Sameera Namazi; Mariko Fujibayashi; Shridar Ganesan; Nicola Barnard; Gyan Bhanot; Troy Shinbrot; Hitoshi Iyatomi; Koichi Ogawa
2012 IEEE EMBS CONFERENCE ON BIOMEDICAL ENGINEERING AND SCIENCES (IECBES), 2012, [Reviewed] - Development of Robust Video-oculography System for Non-invasive Autonomic Nerve Quantification
Masaru Kiyama; Hitoshi Iyatomi; Koichi Ogawa
2012 IEEE EMBS CONFERENCE ON BIOMEDICAL ENGINEERING AND SCIENCES (IECBES), 2012, [Reviewed] - スタティックデータ収集を目指したマルチピンホール頭部SPECTシステムの開発
尾川 浩一; 乳井 嘉之; 福士 政広
核医学, Sep. 2011 - 自由な角度からデータ収集可能な心筋SPECTの開発
尾川 浩一; 乳井 嘉之; 福士 政広
核医学, Sep. 2011 - 研究室訪問――法政大学理工学部応用情報工学科尾川研究室
Med Imag Tech, 01 May 2011 - 任意の回転角、傾斜角でデータ収集可能な心筋SPECTの開発
尾川 浩一; 乳井 嘉之; 福士 政広
核医学, Sep. 2010 - Accurate Rotation of Binary Images
IYATOMI Hitoshi; OGAWA Koichi
The IEICE transactions on information and systems, 01 Sep. 2009 - Simultaneous imaging of multi nuclides using the Electron tracking Compton Gamma-Ray Camera based on small animal and phantom experiments
S. Kabuki; H. Kubo; K. Miuchi; S. Kurosawa; H. Kimura; R. Kohara; O. Miyazaki; T. Nakazawa; T. Shirahata; E. Yamamoto; A. Kubo; E. Kunieda; T. Nakahara; H. Amano; H. Kawashima; M. Ueda; T. Okada; Y. Nakamoto; K. Ogawa; K. Togashi; H. Saji; T. Tanimori
2008 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (2008 NSS/MIC), VOLS 1-9, 2009, [Reviewed] - Performance of Semiconductor Gamma-Camera System with CdZnTe Detector
K. Ogawa; T. Ishikawa; K. Shuto; N. Motomura; H. Kobayashi
4TH EUROPEAN CONFERENCE OF THE INTERNATIONAL FEDERATION FOR MEDICAL AND BIOLOGICAL ENGINEERING, 2009, [Reviewed] - SPECT imaging with a semiconductor detector and a diverging collimator
Mizuho Fukizawa; Koichi Ogawa
4TH EUROPEAN CONFERENCE OF THE INTERNATIONAL FEDERATION FOR MEDICAL AND BIOLOGICAL ENGINEERING, 2009, [Reviewed] - Ultra-high Resolution SPECT with CdTe Detectors
Naoka Ohmura; Koichi Ogawa
4TH EUROPEAN CONFERENCE OF THE INTERNATIONAL FEDERATION FOR MEDICAL AND BIOLOGICAL ENGINEERING, 2009, [Reviewed] - Identification of Media with a Photon Counting X-ray CT System
Yuki Futatsumori; Koichi Ogawa
IEICE Technical Report, Jan. 2009, [Reviewed] - Diverging SPECT system with a semiconductor detector
Tatsuya Kusayanagi; Koichi Ogawa
IEICE Technical Report, Jan. 2009, [Reviewed] - A new method for region-of-interest image reconstruction in x-ray CT
Yoshinori Hirabayashi; Koichi Ogawa
IEICE Technical Report, Jan. 2009, [Reviewed] - Image restoration with two advanced Compton cameras
Hideaki Ishii; Koichi Ogawa
IEICE Technical Report, Jan. 2009, [Reviewed] - Noise Reduction and Contrast Enhancement for Small-Dose X-ray Images in Wavelet Domain
Masahiko Sakata; Koichi Ogawa
2009 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-5, 2009, [Reviewed] - Simulation Study on the Diverging SPECT System with a Semiconductor Detector
Tatsuya Kusayanagi; Koichi Ogawa
2009 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-5, 2009, [Reviewed] - Image Restoration in the Dual Advanced Compton Camera System
Hideaki Ishii; Koichi Ogawa; Shigeto Kabuki; Toru Tanimori
2009 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-5, 2009, [Reviewed] - Development of a Prototype Semiconductor Gamma-Camera System
Koichi Ogawa; Takumi Ishikawa; Keisei Shuto; Hiroaki Kobayashi; Tadaki Nakahara; Naoyuki Shigematsu
2009 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-5, 2009, [Reviewed] - Imaging Reagents Study for Nuclear Medicine Using an Electron-Tracking Compton Gamma-Ray Camera
Shigeto Kabuki; Hiroyuki Kimura; Hiroo Amano; Yuji Nakamoto; Hidetoshi Kubo; Kentaro Miuchi; Shunsuke Kurosawa; Michiaki Takahashi; Hidekazu Kawashima; Masashi Ueda; Tomohisa Okada; Koichi Ogawa; Kaori Togashi; Hideo Saji; Toru Tanimori
2009 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-5, 2009, [Reviewed] - Contrast Enhancement of Dental Panoramic Images with a Wavelet Transform
Masaaki Aoki; Koichi Ogawa
Proceedings of the 5th KOREA-JAPAN Joint Meeting on Medical Physics, Sep. 2008, [Reviewed] - Identification of Media with a Photon Counting X-ray CT
Tatsuma Hirokawa; Koichi Ogawa
Proceedings of the 5th KOREA-JAPAN Joint Meeting on Medical Physics, Sep. 2008, [Reviewed] - Evaluation of a Semiconductor Gamma-Camera with CdZnTe Detectors
Takumi Ishikawa; Koichi Ogawa; Keisei Shuto; Shunichiro; Makino; Nobutoku Motomura; Hiroaki Kobayashi
Proceedings of the 5th KOREA-JAPAN Joint Meeting on Medical Physics, Sep. 2008, [Reviewed] - Development of a Contactless Motion Tracking System for Stereotactic Radiosurgery
Go Mamiya; Koichi Ogawa; Hitoshi Iyatomi; Etsuo Kunieda
Proceedings of the 5th KOREA-JAPAN Joint Meeting on Medical Physics, Sep. 2008, [Reviewed] - Contrast Enhancement of Mammograms With a Wavelet Transform
Masahiko Sakata; Koichi Ogawa
Proceedings of the 5th KOREA-JAPAN Joint Meeting on Medical Physics, Sep. 2008, [Reviewed] - A Misalignment between the Center of a Diverging Collimator and the Center of Rotation of a Gamma Camera
Hirokazu Iida; Koichi Ogawa
Proceedings of the 5th KOREA-JAPAN Joint Meeting on Medical Physics, Sep. 2008, [Reviewed] - Adaptive denoising of medical images with a wavelet transform
T. Watanabe; K. Ogawa
Abstract book of the 11th EFOMP Congress, Sep. 2008, [Reviewed] - New data acquisition method and image reconstruction for myocardial SPECT
Y. Saito; K. Ogawa
Abstract book of the 11th EFOMP Congress, Sep. 2008, [Reviewed] - Fundamental research on the visualization for cerebral vasculars with statistical image reconstruction methods
NYUI Yoshiyuki; OGAWA Koichi; KUNIEDA Etsuo
医学物理 : 日本医学物理学会機関誌 = Japanese journal of medical physics : an official journal of Japan Society of Medical Physics, 01 Apr. 2008 - Advanced Compton Cameraにおける再構成画像の画質改善
栗原孝史; 尾川浩一
法政大学情報メディア教育研究センター研究報告, Mar. 2008 - 核医学画像の将来
尾川浩一
臨床放射線, Oct. 2007 - Classification of Asian-specific acral lesions for Internet-based diagnostic system
H. Iyatomi; H. Oka; M. Tanaka; K. Ogawa
Technical report of IEICE, Jan. 2007, [Reviewed] - 核医学診療におけるアイソトープ製剤誤投与に関するアンケート調査報告
竹田寛; 本田憲業; 尾川浩一; 真賀田泰寛; 横山邦彦; 小須田茂; 金谷信一
核医学, Jan. 2007 - Parameterization of dermoscopic findings for the internet-based melanoma screening system
Hitoshi Iyatomi; Hiroshi Oka; M. Emre Celebi; Masaru Tanaka; Koichi Ogawa
2007 IEEE SYMPOSIUM ON COMPUTATIONAL INTELLIGENCE IN IMAGE AND SIGNAL PROCESSING, 2007, [Reviewed] - Parametric analysis of acral lesions on dermoscopy
Hitoshi Iyatomi; Hiroshi Oka; Masaru Tanaka; Koichi Ogawa
2007 IEEE/ICME INTERNATIONAL CONFERENCE ON COMPLEX MEDICAL ENGINEERING, VOLS 1-4, 2007, [Reviewed] - A novel approach to the visualization of four-dimensional cerebral angiography with cine angiography data measured at several views
Yoshiyuki Nyui; Koichi Ogawa; Etsuo Kunieda
2007 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-11, 2007, [Reviewed] - Diagnostic approach of using an electron tracking compton gamma-ray camera based on small animal and phantom experiments
S. Kabuki; K. Hattori; H. Kawashima; H. Kimura; R. Kohara; A. Kubo; H. Kubo; S. Kurosawa; E. Kunieda; K. Miuchi; O. Miyazaki; T. Nagayoshi; T. Nakahara; Y. Nakamoto; T. Nakazawa; H. Nishimura; K. Ogawa; T. Okada; Y. Okada; R. Orito; H. Saji; H. Sekiya; T. Shirahata; A. Takada; T. Tanimori; K. Togashi; M. Ueda; K. Ueno; E. Yamamoto
2007 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-11, 2007, [Reviewed] - Multi head compton camera system for nuclear medicine: Simulation study
T. Shirahata; R. Kohara; T. Nakazawa; T. Tanimori; K. Ogawa; H. Kubo; S. Kabuki; O. Miyazaki
2007 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-11, 2007, [Reviewed] - Development of a digital phantom for evaluation of fundamental performance on SPECT
Nobutoku Motomura; Koichi Ogawa; Miho Shidahara; Hideo Onishi
2007 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-11, 2007, [Reviewed] - 核医学装置の現状と将来 : 司会の言葉
尾川 浩一; 冨口 静二
核医学 : 日本核医学会機関誌 : the Japanese journal of nuclear medicine, 30 Oct. 2006 - SPECTにおける高密度サンプリング投影を用いたコリメータ開口補正法の開発
N Motomura; K Nambu; A Kojima; S Tomiguchi; K Ogawa
Annals of Nuclear Medicine, 2006 - Advanced Compton Camera with the ability in electron tracking based on Micro Pixel Gas Detector for Medical Imaging
Toru Tanimori; Kaori Hattori; Shigeto Kabuki; Hidekazu Kawashima; Hiroyuki Kimura; Ryota Kohara; Etsuo Kunieda; Atsushi Kubo; Hidetoshi Kubo; Osamu Miyazaki; Kentaro Miuchi; Tadaki Nakahara; Tetsuo Nakazawa; Hironobu Nishimura; Koichi Ogawa; Yoko Okada; Reiko Orito; Hideo Saji; Hiroyuki Sekiya; Takashi Shirahata; Atsushi Takada; Masashi Ueda; Kazuki Ueno; Etsuji Yamamoto
2006 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOL 1-6, 2006, [Reviewed] - Development of a Electron Tracking Compton Gamma-Ray Camera Using a Gas Micro-Tracking Device for Nuclear Medicine
S. Kabuki; K. Hattori; H. Kawashima; H. Kimura; R. Kohara; A. Kubo; H. Kubo; S. Kurosawa; E. Kunieda; O. Miyazaki; T. Nagayoshi; T. Nakahara; T. Nakazawa; H. Nishimura; K. Ogawa; Y. Okada; R. Orito; H. Saji; H. Sekiya; T. Shirahata; A. Takada; T. Tanimori; M. Ueda; K. Ueno; E. Yamamoto
2006 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOL 1-6, 2006, [Reviewed] - Acquiring localization of permanent radioactive sources (I-125) in prostate brachytherapy
Yoshiyuki Nyui; Koichi Ogawa; Etsuo Kunieda
2006 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOL 1-6, 2006, [Reviewed] - Object Description for Increasing a Calculation Speed of the Photon Transportation in a Monte Carlo Method
Takashi Kurihara; Koichi Ogawa
2006 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOL 1-6, 2006, [Reviewed] - Ultra-High Resolution X-Ray CT System with a CdTe Detector
Junpei Yoshitake; Koichi Ogawa
2006 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOL 1-6, 2006, [Reviewed] - Simulation Study on an Ultra-High Resolution SPECT with CdTe Detectors
Koichi Ogawa; Masaaki Muraishi
2006 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOL 1-6, 2006, [Reviewed] - Simulation Study on an Energy-Modulated X-ray CT
Koichi Ogawa; Mayuko Kishino; Tsutomu Yamakawa
2006 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOL 1-6, 2006, [Reviewed] - Photon Counting X-ray CT System with a Semiconductor Detector
Kazuhiko Kowase; Koichi Ogawa
2006 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOL 1-6, 2006, [Reviewed] - Development of Semiconductor Gamma-Camera System with CdZnTe Detectors
Koichi Ogawa; Atsushi Ohta; Keisei Shuto; Nobutoku Motomura; Hiroaki Kobayashi; Shunichiro Makino; Tadaki Nakahara; Atsushi Kubo
2006 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOL 1-6, 2006, [Reviewed] - Automatic identification of shot body region from clinical photographies
Hitoshi Iyatomi; Masahiro Hashimoto; Hiroshi Oka; Masaru Tanaka; Koichi Ogawa
Proceedings - Applied Imagery Pattern Recognition Workshop, 2006, [Reviewed] - Preliminary study for practical quantification of psoriasis with color calibration
H. Iyatomi; H. Oka; A. Miyake; M. Kimoto; M. Tanaka; K. Ogawa
Japanese Journal of Medical Physics, Sep. 2005, [Reviewed] - Uniformity correction of a gamma camera with an artificial neural network
K. Suzawa; K. Ogawa
Japanese Journal of Medical Physics, Sep. 2005, [Reviewed] - Alignment of a collimator holes and pixels in gamma-ray pixellized semiconductor detector
K. Matsunaga; K. Ogawa; N. Motomura
Japanese Journal of Medical Physics, Sep. 2005, [Reviewed] - Development of a contactless motion tracking method for stereotactic radiosurgery
Y. Hojo; H. Iyatomi; K. Ogawa
Japanese Journal of Medical Physics, Sep. 2005, [Reviewed] - Speedy and accurate voxel searching method with a source space tree (SSTA) algorithm in Compton camera
T. Kurihara; K. Ogawa
Japanese Journal of Medical Physics, Sep. 2005, [Reviewed] - Photon counting X-ray CT with a CdTe semiconductor detector
K. Kowase; K. Ogawa
Japanese Journal of Medical Physics, Sep. 2005, [Reviewed] - SPECT imaging with a semiconductor detector with a diverging-hole collimator
H. Komiyama; K. Ogawa
Japanese Journal of Medical Physics, Sep. 2005, [Reviewed] - Reduction of Artifacts in X-ray CT With a Photon Counting System
K. Ogawa; H. Shibusawa; Y. Harata; T. Yamakawa
2004 IEEE Nucl. Sci. Sympo. and Med. Imag. Conf. (Conf. Rec. Vol.5), Nov. 2004, [Reviewed] - H-019 Myocardial SPECT with a small number of projection data : Correction of collimator aperture and attenuation
Komiyama Hideaki; Ogawa Koichi
情報科学技術フォーラム一般講演論文集, 20 Aug. 2004 - Image distortion and correction in single photon emission CT
K Ogawa
ANNALS OF NUCLEAR MEDICINE, May 2004, [Reviewed] - Evaluation of a limited-area backprojection reconstruction method in quantitative SPECT
N Motomura; A Kinda; K Ogawa
2003 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORD, VOLS 1-5, 2004, [Reviewed] - Separation of two radionuclides in simultaneous I-123/Tc-99m SPECT with artificial neural networks
M Ishii; K Ogawa; T Nakahara; J Hashimoto; A Kubo
2003 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORD, VOLS 1-5, 2004, [Reviewed] - Evaluation of data acquisition scheme in a new myocardial SPECT system
N Kobayashi; K Ogawa; N Motomura; H Fujii; A Kubo
2003 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORD, VOLS 1-5, 2004, [Reviewed] - Reduction of streak artifacts in an analytical attenuation correction method for single photon emission CT
A Ishikawa; K Ogawa
PROCEEDINGS OF THE IASTED INTERNATIONAL CONFERENCE ON APPLIED SIMULATION AND MODELLING, 2004, [Reviewed] - Quantification of two radionuclides in simultaneous I-123/(TC)-T-99m SPECT with artificial neural networks
K Ogawa; K Suzawa
2004 IEEE Nuclear Science Symposium Conference Record, Vols 1-7, 2004, [Reviewed] - Practical evaluation of an analytical attenuation correction method for a non-uniform attenuator
A Ishikawa; K Ogawa
2004 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-7, 2004, [Reviewed] - リンパシンチグラフィによるセンチネルリンパ節の映像化－食道癌症例での検討を中心に－
藤井博史; 北川雄光; 山下範太郎; 尾川浩一; 本村信篤; 久保敦司
Medical Review, No.89, Sep. 2003 - SPECT画像の画質評価（1）
尾川浩一
インナービジョン, vol.18(6), Jun. 2003 - SPECT画像の画質評価（2）
尾川浩一
インナービジョン, vol.18(7), Jun. 2003 - Sentinel node imaging using a portable gamma camera with a semiconductor detector.
H Fujii; Y Kitagawa; T Ikeda; K Ogawa; K Nakamura; T Nakahara; M Kitajima; A Kubo; Y Takeuchi
JOURNAL OF NUCLEAR MEDICINE, May 2003 - Collimator design for single photon emitter
K Ogawa; J Kato
2002 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORD, VOLS 1-3, 2003, [Reviewed] - Detection of respiratory movement during SPECT/PET data acquisition
K Tamagawa; K Ogawa; M Nakajima
2002 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORD, VOLS 1-3, 2003, [Reviewed] - Proposing a new myocardial SPECT system
K Ogawa; N Motomura
2002 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORD, VOLS 1-3, 2003, [Reviewed] - Image reconstruction with a hexagonal grid
A Yabushita; K Ogawa
2002 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORD, VOLS 1-3, 2003, [Reviewed] - Dose planning for prostate cancer with a three-dimensional image
Y Noda; K Ogawa; Y Nyui
2002 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORD, VOLS 1-3, 2003, [Reviewed] - CT技術のブレークスルー 可搬型ガンマカメラによる心筋SPECT
尾川浩一
映像情報Medical, vol.34(15), Dec. 2002 - Bone parameters extracted automatically from lumbar vertebral computed tomographic images
T Nagaoka; K Kondo; H Honma; K Ogawa; K Sakurai
RADIOLOGY, Nov. 2002 - 連載講座 SPECTにおける画質劣化とその補正 Ⅵ γ線の統計変動
尾川浩一
映像情報Medical, vol.34(12), Oct. 2002 - J-44 Proposal on the Digital Image Watermarking with Wavelet Transform
Ogawa Yuichi; Ogawa Koichi
情報科学技術フォーラム一般講演論文集, 13 Sep. 2002 - Analysis of cortical bone parameters extracted automatically from lumber vertebra CT
K.Ogawa; K.Kondo; K.Sakurai
Proceedings of 2002 IEEE International Conference on Image Processing (ICIP) Vol.2, Sep. 2002, [Reviewed] - 連載講座 SPECTにおける画質劣化とその補正 Ⅴ 画像再構成
尾川浩一
映像情報Medical, vol.34(10), Sep. 2002 - 連載講座 SPECTにおける画質劣化とその補正 Ⅲ γ線の散乱
尾川浩一
映像情報Medical, vol.34(8), Jul. 2002 - 連載講座 SPECTにおける画質劣化とその補正 Ⅱ γ線の吸収
尾川浩一
映像情報Medical, vol.34(6), Jun. 2002 - 腰椎CT画像を用いた皮質骨パラメータ解析
長岡 智明; 近藤 一光; 本間 寛之; 尾川 浩一; 桜井 清子
日本骨形態計測学会雑誌 = Journal of Japanese Society of Bone Morphometry, 15 May 2002 - 連載講座 SPECTにおける画質劣化とその補正 I 総論
尾川浩一
映像情報Medical, vol.34(5), May 2002 - 国際学会見聞記 IEEE Nuclear Science Symposium and Medical Imaging Conference 2001報告
尾川 浩一
映像情報medical, Jan. 2002 - Accurate vascular reconstruction with MAP-EM method from few projections
Y Kajiura; K Ogawa; E Kunieda
2001 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORDS, VOLS 1-4, 2002, [Reviewed] - Selection of optimum projection angles in three dimensional myocardial SPECT
S Ohno; K Ogawa
2001 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORDS, VOLS 1-4, 2002, [Reviewed] - Collimator blurring reduction method using fine angular sampling projection data in SPECT
N Motomura; K Nambu; A Kojima; S Tomiguchi; K Ogawa
2001 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORDS, VOLS 1-4, 2002, [Reviewed] - Extraction of mask image for DSA using principal component analysis
Y Nyui; K Ogawa; E Kunieda
2001 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORDS, VOLS 1-4, 2002, [Reviewed] - Quantitative image reconstruction in simultaneous I-123/Tc-99m myocardial SPECT
N Yamada; K Ogawa
2001 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORDS, VOLS 1-4, 2002, [Reviewed] - 核医学におけるアイソトープ利用
尾川浩一
核データニュース、No.70, Oct. 2001 - ブロック反復型画像再構成法における投影データ数の変更による画質の改善
森川琴子; 尾川浩一
Med. Imag. Tech. Vol.19, No.5, Sep. 2001, [Reviewed] - Image Recontruction in Compton CT
OHTA Jin; OGAWA Koichi
Proceedings of the IEICE General Conference, 07 Mar. 2001 - Selection of optimum projection data in 3D SPECT image reconstruction
OHNO Satoru; OGAWA Koichi
Proceedings of the IEICE General Conference, 07 Mar. 2001 - Accurate Image Reconstruction in Dual-radionuclide SPECT system.
YAMADA Naoki; OGAWA Koichi
Proceedings of the IEICE General Conference, 07 Mar. 2001 - Accurate image reconstruction with the source space tree algorithm (SSTA) for compton CT
J Ohta; K Ogawa
2001 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOL I, PROCEEDINGS, 2001, [Reviewed] - Improvement of detection efficiency in coincidence data acquisition with CdTe detector
M.Ohtani; K.Ogawa; T.Takayama; I.Mori
2000 IEEE Nucl. Sci. Sympo. and Med.Imag. Conf. (Conf. Rec. vol.2), Oct. 2000, [Reviewed] - A new approach to the visualization of intracranial arteriovenous malformation with principle component analysis
Y.Nyui; K.Ogawa; E.Kunieda
2000 IEEE Nucl.Sci. Sympo. and Med.Imag. Conf. (Conf. Rec. vol.3), Oct. 2000, [Reviewed] - Search algorithm of a maximum rectangular region for object description
M.Chizaki; K.Ogawa
2000 IEEE Nucl. Sci. Sympo. and Med.Imag. Conf. (Conf. Rec. vol.3), Oct. 2000, [Reviewed] - Visualization of Intracranial Arteriovenous Malformation with Dynamic CT
NYUI Yoshiyuki; OGAWA Koichi; KUNIEDA Etsuo
Medical imaging technology, 25 Jul. 2000 - Comparative study on iterative image reconstruction using modification of the number of projections
MORIKAWA Kotoko; OGAWA Koichi
Proceedings of the IEICE General Conference, 07 Mar. 2000 - Comparative study on statistical image reconstruction combined with modification of the number of projections
K Morikawa; K Ogawa
2000 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOL II, PROCEEDINGS, 2000, [Reviewed] - Extraction of arteriovenous malformation with factor analysis
Y Nyui; K Ogawa; E Kunieda
2000 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOL II, PROCEEDINGS, 2000, [Reviewed] - Separation of Dual-radionuclide SPECT Images by Using an Arificial Neural Network
MATSUNAGA Akio; OGAWA Koichi
IEICE technical report., 29 Sep. 1999 - Scatter correction in dual-radionuclide SPECT Study
MATSUNAGA Akio; OAGWA Koichi
Proceedings of the Society Conference of IEICE, 16 Aug. 1999 - Structure Analysis of Lumbar Vertebral CT Images
SAKURAI Kiyoko; OGAWA Koichi; KONOKAWA Kiminori
Medical imaging technology, 01 Jul. 1999 - Obiject description by a maximum rectangular method in photon transport
SUGANUMA Ryuichi; OGAWA Koichi
Medical imaging technology, 01 Jul. 1999 - The report of the result of the working group on SPECT quantitation.
西村恒彦; 尾川浩一; 篠原広行; 中川原譲二; 冨口静二; 中嶋憲一; 飯田秀博; 汲田伸一郎; 西川潤一
核医学, 20 Apr. 1999 - Object description and performance of Monte Carlo simulation in photon transport
T Sato; K Ogawa
ADVANCES IN COMPUTER-ASSISTED RECOGNITION, 1999, [Reviewed] - Video-based automatic surveillance of oil leaks in a power plant by using artificial neural networks
T Ogawa; K Ogawa; H Uekusa; M Mukasa; J Momii
ADVANCES IN COMPUTER-ASSISTED RECOGNITION, 1999, [Reviewed] - Image quality in the Modified ordered subset - Bayesian reconstruction
K Ogawa; H Urabe
1999 IEEE NUCLEAR SCIENCE SYMPOSIUM - CONFERENCE RECORD, VOLS 1-3, 1999, [Reviewed] - Scatter correction in multinuclide data acquisition by means of a neural network
A Matsunaga; K Ogawa
1999 IEEE NUCLEAR SCIENCE SYMPOSIUM - CONFERENCE RECORD, VOLS 1-3, 1999, [Reviewed] - Fast vascular reconstruction with MAP-EM method from few projections
N Ohura; K Ogawa; E Kunieda
1999 IEEE NUCLEAR SCIENCE SYMPOSIUM - CONFERENCE RECORD, VOLS 1-3, 1999, [Reviewed] - Object description by a maximum rectangular method in Monte Carlo simulation
R Suganuma; K Ogawa
1999 IEEE NUCLEAR SCIENCE SYMPOSIUM - CONFERENCE RECORD, VOLS 1-3, 1999, [Reviewed] - New accelerating method in photon transport in Monte Carlo simulation
T.Sato; K.Ogawa
1998 IEEE Nucl. Sci. Symp. and Med. Imag. Conf. (Conf. Rec., Vol.3), Nov. 1998, [Reviewed] - Improvement of reconstructed images in ordered subset-Bayesian reconstruction method
H.Urabe; K.Ogawa
1998 IEEE Nucl. Sci. Symp. and Med. Imag. Conf. (Conf. Rec., Vol.2), Nov. 1998, [Reviewed] - The compensation method for the effects of system resolution to the left ventricular volume measurement using QGS program
T.Takayama; N.Motomura; K.Ogawa
1998 IEEE Nucl. Sci. Symp. and Med. Imag. Conf. (Conf. Rec., Vol.3), Nov. 1998, [Reviewed] - Analysis of mineral density and structure of lumbar vertebrae by CT images
SAKURAI K.; OGAWA K.
放射線医学物理, 18 Sep. 1998 - Object discription and photon transport in Monte Carlo method
SATO Tokiko; OGAWA Koichi
Medical imaging technology, 25 Jul. 1998 - Application of Ordered Subsets Algorithm to Bayesian Image Reconstruction
URABE Hiroshi; OGAWA Koichi
Medical imaging technology, 25 Jul. 1998 - Ordered Subsets-Bayesian Reconstruction in Emission Computed Tomography
URABE Hiroshi; OGAWA Koichi
Proceedings of the IEICE General Conference, 06 Mar. 1998 - Detection of Oil Leakage by ITV Images with Neural Networks
Ogawa Takashi; Ogawa Koichi; Uekusa Hideaki; Mukasa Minoru
Proceedings of the IEICE General Conference, 06 Mar. 1998 - Ultra high resolution pinhole SPECT
K Ogawa; T Kawade; K Nakamura; A Kubo; T Ichihara
1997 IEEE NUCLEAR SCIENCE SYMPOSIUM - CONFERENCE RECORD, VOLS 1 & 2, 1998, [Reviewed] - Selection of projection set and the order of calculation in ordered subsets expectation maximization method
M Takahashi; K Ogawa
1997 IEEE NUCLEAR SCIENCE SYMPOSIUM - CONFERENCE RECORD, VOLS 1 & 2, 1998, [Reviewed] - Determination of energy window width and position for scintigraphic imaging using different energy resolution detection with the triple energy window (TEW) scatter compensation method
T Takayama; T Ichihara; N Motomura; K Ogawa
1997 IEEE NUCLEAR SCIENCE SYMPOSIUM - CONFERENCE RECORD, VOLS 1 & 2, 1998, [Reviewed] - Quantitative tissue characterization of diffuse liver diseases from ultrasound images by neural network.
M Fukushima; K Ogawa; T Kubota; N Hisa
1997 IEEE NUCLEAR SCIENCE SYMPOSIUM - CONFERENCE RECORD, VOLS 1 & 2, 1998, [Reviewed] - Introduction of ordered subsets algorithm to maximum a posteriori expectation maximization method
H Urabe; K Ogawa
1998 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING - PROCEEDINGS, VOL 3, 1998, [Reviewed] - インターネットの医学利用Ⅲ
尾川浩一
日本放射線技師会雑誌，vol.44(10), Oct. 1997 - インターネットの医学利用 II
尾川浩一
日本放射線技師会雑誌，vol.44(8), Aug. 1997 - ON A PROPOSAL OF DATA ACQUISITION METHOD IN HELICAL SCAN CT
OGAWA Koichi; YAMADA Yasuharu
Medical imaging technology, 01 Jul. 1997 - Effects of scatter and attenuation correction on quantitative analyses of beta-CIT Brain SPECT.
J Hashimoto; K Takatoku; K Bando; K Ogasawara; A Kubo; K Ogawa; N Motomura; T Ichihara
JOURNAL OF NUCLEAR MEDICINE, May 1997 - Development of ultra high resolution pinhole SPECT.
T Kawade; K Ogawa; K Nakamura; A Kubo; T Ichihara
JOURNAL OF NUCLEAR MEDICINE, May 1997 - インターネットの医学利用Ⅰ
尾川浩一
日本放射線技師会雑誌，vol.44(5), May 1997 - 傾けたファンビームデータ収集によるヘリカルスキャンCT
山田康晴; 尾川浩一
法政大学計算センター研究報告 Vol.10, Mar. 1997 - Pinhole SPECTに関する研究
川出隆久; 尾川浩一
法政大学計算センター研究報告 Vol.10, Mar. 1997 - モンテカルロ法を用いた光子輸送の高速化に関する研究
高橋悟; 尾川浩一
法政大学計算センター研究報告 Vol.10, Mar. 1997 - γ線透過型ＣＴにおける散乱光子
河村幸則; 尾川浩一
法政大学計算センター研究報告 Vol.10, Mar. 1997 - Quantitative measurement of scattered photons during gamma ray transmission CT by means of Monte Carlo simulations.
K Ogawa; Y Kawamura; A Kubo; T Ichihara
1996 IEEE NUCLEAR SCIENCE SYMPOSIUM - CONFERENCE RECORD, VOLS 1-3, 1997, [Reviewed] - Improvement of image quality by tilted fan beam data acquisition in a helical scan X-ray CT
K Ogawa; Y Yamada; T Uno
1996 IEEE NUCLEAR SCIENCE SYMPOSIUM - CONFERENCE RECORD, VOLS 1-3, 1997, [Reviewed] - Accelerating photon transport in Monte Carlo simulation
K Ogawa; S Takahashi; Y Satori
1996 IEEE NUCLEAR SCIENCE SYMPOSIUM - CONFERENCE RECORD, VOLS 1-3, 1997, [Reviewed] - Development of a lead X-ray compensation method in simulataneous Tl-201 SPECT & Tc-99m TCT using a flood source
N.Motomura; T.Ichihara; H.Hasegawa; K.Ogawa; J.Hashimoto; A.Kubo
1996 IEEE Nucl. Sci. Symp. and Med. Imag. Conf. (Conf. Rec. vol.2), Nov. 1996, [Reviewed] - 3D PET Image Reconstruction Using the Exact Probability between a Voxel and Detector Pair
TSUKUDA Ken; OGAWA Koichi
The Transactions of the Institute of Electronics,Information and Communication Engineers., 25 Oct. 1996 - Scatter and Attenuation Correction for Quantitative Myocardial SPECT Imaging
HASHIMOTO Jun; SAMMIYA Toshikazu; OGASAWARA Katsuhiko; KUBO Atsushi; OGAWA Koichi; ICHIHARA Takashi; MOTOMURA Nobutoku; HASEGAWA Hyoji
核医学, 20 Sep. 1996 - A practical method for scatter and attenuation correction in Tl-201 myocardial SPECT using a dual-headed SPECT system.
J Hashimoto; A Kubo; K Ogawa; N Motomura; H Hasegawa; T Ichihara
JOURNAL OF NUCLEAR MEDICINE, May 1996 - Transmission CT image quality for quantitative brain SPECT imaging
H Hasegawa; N Motomura; T Ichihara; K Ogawa; J Hashimoto; A Kubo
JOURNAL OF NUCLEAR MEDICINE, May 1996 - ベクトル量子化における高速化に関する提案－FSVQのクラス分けの導入によるパターン予測の改善－
黒瀬勉; 尾川浩一
画像ラボ，vol.7(5), May 1996 - 3D PET Image Reconstruction Using ML-EM Algorithm
Tsukuda Ken; Ogawa Koichi
Proceedings of the IEICE General Conference, 11 Mar. 1996 - Quantitative Image Reconstruction in Myocardial SPECT
Takahashi Satoru; Ogawa Koichi
Proceedings of the IEICE General Conference, 11 Mar. 1996 - Image segmentation using circularly spread MR images
T Ono; K Ogawa
1995 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE RECORD, VOLS 1-3, 1996, [Reviewed] - Analysis of trabecular patterns using fractal dimensions
E Inoue; K Ogawa
1995 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE RECORD, VOLS 1-3, 1996, [Reviewed] - Improvement of finite state vector quantization using classification
T Kurose; K Ogawa
1995 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE RECORD, VOLS 1-3, 1996, [Reviewed] - 次世紀の核医学テクノロジー
尾川浩一
新医療 Vol.22(11), Nov. 1995 - GAによる投影からの多値画像の再構成
中田; 尾川浩一
画像ラボ，vol.6(6), Jun. 1995 - ML‐EM画像再構成における 並列計算
池本浩幸; 尾川浩一
法政大学計算センター研究報告 Vol.8, Apr. 1995 - モンテカルロ計算を用いたSPECT用コリメータの設計
山田恒平; 尾川浩一
法政大学計算センター研究報告 Vol.8, Apr. 1995 - SPECTにおける最近の進歩
尾川浩一
放射線科学、vol.39(4), Apr. 1995 - Image Segmentation by using circularly spreaded MR images
ONO Tachio; OGAWA Koichi
Proceedings of the IEICE General Conference, 27 Mar. 1995 - Scatter correction in SPECT
Koichi Ogawa
Medical Review, No.49, Sep. 1994 - SIMULTANEOUS SPECT AND TRANSMISSION CT FOR THE MEASUREMENT OF 3-DIMENSIONAL ABSOLUTE ACTIVITY DISTRIBUTION USING DUAL ISOTOPES, TEW SCATTER COMPENSATION METHOD AND FAN-BEAM COLLIMATION
T ICHIHARA; N MOTOMURA; H HASEGAWA; K OGAWA
JOURNAL OF NUCLEAR MEDICINE, May 1994 - Quantitative SPECT imaging
Koichi Ogawa
The second international symposium on PET in Oncology. (Proceedings), May 1994 - ガンマ分布を用いたMAP-EM画像再構成
佃研; 尾川浩一
法政大学計算センター研究報告 Vol.7, Apr. 1994 - Elimination of T2 artifacts caused by RARE sequence in MRI
H TAKAHASHI; K OGAWA; K OSHIO; H MOMOSHIMA
NUCLEAR SCIENCE SYMPOSIUM & MEDICAL IMAGING CONFERENCE - 1994 IEEE CONFERENCE RECORD, VOLS 1-4, 1994, [Reviewed] - Image reconstruction from projections using a genetic algorithm
J NAKATA; K OGAWA
NUCLEAR SCIENCE SYMPOSIUM & MEDICAL IMAGING CONFERENCE - 1994 IEEE CONFERENCE RECORD, VOLS 1-4, 1994, [Reviewed] - Simultaneous emission, transmission scan for the measurement of 3-dimensional absolute activity distribution using dual isotope, TEW scatter compensation method and fan beam collimation
T ICHIHARA; N MOTOMURA; H HASEGAWA; K OGAWA; A KUBO
NUCLEAR SCIENCE SYMPOSIUM & MEDICAL IMAGING CONFERENCE - 1994 IEEE CONFERENCE RECORD, VOLS 1-4, 1994, [Reviewed] - A proposal of a Monte Carlo method using octree structure
S MAEDA; K OGAWA
NUCLEAR SCIENCE SYMPOSIUM & MEDICAL IMAGING CONFERENCE - 1994 IEEE CONFERENCE RECORD, VOLS 1-4, 1994, [Reviewed] - A PROPOSAL OF ACCURATE SCATTER CORRECTION METHOD CONSIDERING ENERGY-SPECTRA OF SCATTERED PHOTONS IN SINGLE-PHOTON EMISSION CT
A CHUGO; K OGAWA
NUCLEAR SCIENCE SYMPOSIUM & MEDICAL IMAGING CONFERENCE, VOLS 1-3, 1993, [Reviewed] - QUANTITATIVE SPECT IMAGING USING POSITION-DEPENDENT SCATTER AND ATTENUATION CORRECTION AND ITS CLINICAL-APPLICATION
A KUBO; K OGAWA; Y TSUKATANI; J HASHIMOTO; S HASHIMOTO; T ICHIHARA
EUROPEAN JOURNAL OF NUCLEAR MEDICINE, Aug. 1992 - QUANTITATIVE IMAGE-RECONSTRUCTION USING POSITION-DEPENDENT SCATTER CORRECTION IN SINGLE-PHOTON EMISSION CT
K OGAWA; A CHUGO; T ICHIHARA; A KUBO; S HASHIMOTO
CONFERENCE RECORD OF THE 1992 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE, VOLS 1 AND 2, 1992, [Reviewed] - A NEW OPTIMIZATION METHOD OF DOSE DISTRIBUTION FOR INTRACAVITARY RADIATION-THERAPY BY SIMULATED ANNEALING
F KAIBUKI; K OGAWA
CONFERENCE RECORD OF THE 1992 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE, VOLS 1 AND 2, 1992, [Reviewed] - MAP EM IMAGE-RECONSTRUCTION USING A K-NEAREST NEIGHBOR METHOD IN EMISSION CT
Y UCHIYAMA; K OGAWA
CONFERENCE RECORD OF THE 1992 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE, VOLS 1 AND 2, 1992, [Reviewed] - A SOPHISTICATED ESTIMATION OF SCATTER COMPONENT IN ENERGY-SPECTRA USING AN ARTIFICIAL NEURAL-NETWORK IN RADIONUCLIDE IMAGING
K OGAWA; N NISHIZAKI
CONFERENCE RECORD OF THE 1992 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE, VOLS 1 AND 2, 1992, [Reviewed] - 光磁気ディスクの医療分野での応用－教育・電子教科書への応用－
尾川浩一
医療とコンピュータ，vol.3(5), May 1991 - REGIONAL ADAPTIVE HISTOGRAM EQUALIZATION USING FUZZY-SETS
K OGAWA; A SAITO; M NAKAJIMA; Y ANDO; S HASHIMOTO
MEDICAL IMAGING IV : IMAGE PROCESSING, 1990, [Reviewed] - Correction of collimator aperture using a shift-variant deconvolution filter in gamma camera emission ct
Koichi Ogawa; Seungkuen Paek; Masato Nakajima; Shin’ichi Yuta; Atsushi Kubo; Shozo Hashimoto
Proceedings of SPIE - The International Society for Optical Engineering, 27 Jun. 1988, [Reviewed] - PACS用画像処理ワークステーションの開発
尾川浩一; 安藤裕; 国枝悦夫; 塚本信宏; 橋本省三
映像情報 Vol.19(10), Oct. 1987 - 慶応大学病院におけるPACSとその展望
安藤 裕; 国枝悦夫; 尾川浩一; 塚本信宏; 橋本省三
新医療 Vol.9, Sep. 1987 - Development of dose calculation system of brachytherapy with a personal computer
Koichi Ogawa; Etsuo Kunieda; Shozo Hashimoto; Takushi Dokiya
The 9th international conference on the use of computers in radiation therapy (Proceedings), Jul. 1987, [Reviewed] - An external irradiation planning system installed on a personal computer
Etsuo Kunieda; Koichi Ogawa; Kazumasa Mita; Kozo Sekiguchi; Tadashi Wada; Shozo Hashimoto
The 9th international conference on the use of computers in radiation therapy (Proceedings), Jul. 1987, [Reviewed]
- 画像・情報処理
尾川浩一, Joint editor, 第１章情報理論（77頁）、第3章画像工学（105頁）
国際文献社, 01 Mar. 2018, Not reviewed
9784902590777 - Scientific terms for medical physics
日本医学物理学会用語委員会, Contributor
日本医学物理学会用語委員会編, 01 Jul. 2017, Not reviewed - Physics of Nuclear Medicine
Koji Wtabe; Koichi Ogawa, Joint work, Chap. 6 SPECT
Kokusaibunken Co., 31 Mar. 2015, Not reviewed - 医用画像工学ハンドブック
Single work, 第１章基礎理論（１．信号・画像処理の基礎）
日本医用画像工学会編, 15 Sep. 2012, Not reviewed - 医学物理用語集2007
尾川浩一; 長; 尾川, Editor
日本医学物理学会用語委員会編, Apr. 2007, Not reviewed - 放射線と先端医療技術
Contributor
原子力システム研究懇話会, Jun. 2003, Not reviewed - 最新臨床核医学
編著 利波紀久; 久保敦司, Contributor
金原出版, May 1999, Not reviewed - SPECT機能画像 基礎編
編集 西村恒彦, Contributor
メジカルビュー社, May 1998, Not reviewed - ウィンドウシステム入門 ―NeXTからXまで―
尾川浩一; 松山佐和; 岩崎晴美, Joint work
朝倉書店, Feb. 1996, Not reviewed - 医用情報処理 応用編
Contributor
医用情報処理編集委員会編, Nov. 1995, Not reviewed - 医学物理データブック
Contributor
日本医学放射線学会物理部会編, Feb. 1994, Not reviewed - 画像の保管・管理システム
Contributor
日本放射線技術学会編, Mar. 1990, Not reviewed
- A proposal on a layered slit collimator for radiographic imaging
Ippei Kusakari; Koichi Ogawa; Hiroaki Suzuki; Keisuke Usui
International conference on Medical Physics, 10 Dec. 2016 - Effect of region extraction and assigned electron density value on the accuracy of dose calculation with MRI-based VMAT planning
Keisuke Usui; Koichi Ogawa; Hiroaki Suzuki
International conference on Medical Physics, 10 Dec. 2016 - Dental image fusion with a KINECT
Kohei KAWAI; Koichi OGAWA; Tatsumasa FUKUI and Akitoshi KATSUMATA
International conference on Medical Physics, 10 Dec. 2016 - Estimation of an atomic density with a singular value decomposition method using a photon-counting x-ray CT
Ryo Ito; Koichi Ogawa
IEEE Nuclear Science Symposium and Medical Imaging Conference, 29 Oct. 2016 - Multi-pinhole SPECT system with a triple head gamma camera
Hayao Kubota; Yutaro Hemuki; Nobutoku Motomura; Koichi Ogawa
IEEE Nuclear Science Symposium and Medical Imaging Conference, 29 Oct. 2016 - Quantitative Estimation of Activities in a Tc-99m/In-111 Small Animal SPECT Study
Koichi Ogawa; Satoshi Endo; Izumi O. Umeda; Hirofumi Fujii
Annual Congress of the European Association of Nuclear Medicine, 15 Oct. 2016 - Analyzing the Effect of Scattered Photons on Cone Beam Computed Tomography–Based Adaptive Radiation Therapy
K. Usui; T. Inoue; C. Kurokawa; S. Sugimoto; K. Sasai; K. Ogawa
Annual Meeting of the American Society for Radiation Oncology(ASTRO), 25 Sep. 2016 - Monte Carlo study on a cone-beam computed tomography using a cross-type carbon fiber antiscatter grid
K. Usui; T. Inoue; C. Kurokawa; S. Sugimoto; K Sasai; K Ogawa
58th AAPM annual meeting, 31 Jul. 2016 - Evaluation of Periodontitis Using Photon-counting X-ray Detector Based Panoramic Imaging
Akitoshi Katsumata; Tatsuma Fukui; Hiroki Suzuki; Toshiaki Shibutani; Koichi Ogawa
AADR/CADR Annual Meeting, 16 Mar. 2016
- Aug. 2012 - Present
World Molecular Imaging Society - Aug. 2011 - Present
日本放射線腫瘍学会 - Mar. 2010 - Present
日本歯科放射線学会 - Apr. 1998 - Present
日本心臓核医学会 - Apr. 1993 - Present
日本医学物理学会 - Apr. 1988 - Present
IEEE Signal Processing Society - Apr. 1982 - Present
日本核医学会 - Apr. 1981 - Present
日本医用画像工学会 - Apr. 1979 - Present
電子情報通信学会 - Apr. 1988 - Sep. 2020
Society of Nuclear Medicine - Nov. 2012 - Nov. 2012
International Forum on Medical Imaging in ASIA - Apr. 1982 - Dec. 2010
日本医学放射線学会 - Apr. 1985 - Mar. 1999
日本医学放射線物理学会 - Apr. 1987 - Mar. 1993
Society of SPIE - Apr. 1979 - Mar. 1981
日本超音波医学会 - Apr. 1979 - Mar. 1981
応用物理学会
- Development of an image reconstruction method for the data driven SPECT system with deep learning
Grant-in-Aid for Scientific Research (C)
Hosei University
01 Apr. 2022 - 31 Mar. 2025 - Development of objective evaluation method for radiation pneumonitis
Grant-in-Aid for Scientific Research (C)
Keio University
01 Apr. 2020 - 31 Mar. 2024 - Development of an innovative SPECT system that enables a kinetic analysis of organs
Grant-in-Aid for Scientific Research (C)
Hosei University
01 Apr. 2019 - 31 Mar. 2022 - 回転型データ収集を不要とする革新的SPECTシステムの開発
基盤研究（C)
Apr. 2016 - Mar. 2019 - Development of antiscatter grid for cone-beam computed tomography in radiation therapy
Grant-in-Aid for Young Scientists (B)
Juntendo University
01 Apr. 2015 - 31 Mar. 2017 - Proof of new generation, high-precision dose computational algorithm
Grant-in-Aid for Scientific Research (C)
Tokai University
01 Apr. 2014 - 31 Mar. 2017 - Development of a pinhole camera system for online dose imaging in the boron neutron capture theraphy
Grant-in-Aid for Scientific Research (C)
Tokyo Institute of Technology
01 Apr. 2012 - 31 Mar. 2015 - 形態・機能情報を同時に映像化可能なフォトンカウンティング形X線CTの開発
01 Apr. 2011 - 31 Mar. 2014 - Development of high-precision image-guided irradiation method that enables us to monitor the movement during linac stereotactic radiosurgery
Grant-in-Aid for Scientific Research (C)
Tokai University
2010 - 2012 - 半導体検出器によるスタティックデータ収集形高分解能ＳＰＥＣＴシステムの開発
01 Apr. 2008 - 31 Mar. 2011 - Diagnostic imaging for dental implant : indication, radiation dose and novel technology
Grant-in-Aid for Scientific Research (B)
Showa University
2007 - 2009 - 半導体型検出器およびダイバージングホールコリメータを用いた超高分解能SPECT
01 Apr. 2006 - 31 Mar. 2008 - Ｘ線のスペクトル情報を利用した次世代X線CTの開発
01 Apr. 2004 - 31 Mar. 2006 - Development of high sensitivity, light-weight portable gamma camera based on innovative fundamentals for nuclear medicine examinations
Grant-in-Aid for Scientific Research (B)
Keio University
2004 - 2006 - Development of CT radiotherapy machine equipped with micro multileaf collimator
Grant-in-Aid for Scientific Research (B)
Keio University
2004 - 2005 - 半導体検出器を用いた心筋SPECTの映像化アルゴリズムの開発
01 Apr. 2002 - 31 Mar. 2004 - Clinical Application of Scatter Correction with Artificial Neural Network in Myocardial and Brain SPECT
Grant-in-Aid for Scientific Research (C)
Keio University
2003 - 2004 - ２核種同時収集型SPECTにおけるニューラルネットによる正確な２核種分離法の開発
01 Apr. 2000 - 31 Mar. 2002 - 放射線治療・診断のための最大直方体を用いた物体表現によるモンテカルロ計算の高速化
01 Apr. 1998 - 31 Mar. 2000 - オクトツリー表現を用いた放射線治療・診断におけるモンテカルロ計算の高速化
01 Apr. 1996 - 31 Mar. 1998 - 脳血流のSPECT定量解析を目的としたガンマ線透過型CTによる吸収補正法の開発
01 Apr. 1996 - 31 Mar. 1998 - 心筋SPECTの定量解析を可能とするデュアルファンビーム型γ線透過型CTの開発
01 Apr. 1994 - 31 Mar. 1996 - Education for Information Processing with the Multi-Media Computer System and Network System
Grant-in-Aid for Scientific Research (C)
Hosei University
1995 - 1996 - SPECT画像の定量解析を可能とする散乱線除去法の開発に関する研究
01 Apr. 1992 - 31 Mar. 1994 - Predictive assay for late radiation injury with fibroblast and lymphocyte
Grant-in-Aid for General Scientific Research (C)
School of Medicine, Keio University
1992 - 1993 - Quantitative analysis of diffuse liver diseases by B-mode ultrasonography using neural networks
Grant-in-Aid for General Scientific Research (C)
Kochi Medical School
1992 - 1993 - Development of Light-X ray Hybrid CT System for Plasma Diagnosis
Grant-in-Aid for Developmental Scientific Research (B)
Keio University
1991 - 1992 - Development of Magnetic Field Imaging System Using CT Technique.
Grant-in-Aid for Developmental Scientific Research (B).
Keio University
1989 - 1990 - Predictive assay for biopsy specimens from cancer patients
Grant-in-Aid for General Scientific Research (B)
Keio University, School of Medicine
1989 - 1990 - A study of the optimum image processing and display methods of digital chest X-ray image.
Grant-in-Aid for General Scientific Research (A)
Keio University
1986 - 1987
