Takeshi Namita

J-GLOBAL         Last updated: Jun 19, 2019 at 11:33
 
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Name
Takeshi Namita
E-mail
namita.takeshi.8ckyoto-u.ac.jp
Affiliation
Kyoto University
Section
Graduate School of Medicine Human Health Sciences

Research Areas

 
 

Academic & Professional Experience

 
May 2013
 - 
Today
Program-Specific Assistant Professor, Graduate School or Medicine, Kyoto University
 
Jul 2009
 - 
Apr 2013
Postdoctoral Fellow, Graduate School of Information Science and Technology, Hokkaido University
 
Apr 2009
 - 
Jun 2009
Research Fellow, Graduate School of Information Science and Technology, Hokkaido University
 

Education

 
Apr 2005
 - 
Jun 2009
Division of Bioengineering and Bioinformatics, Graduate School of Information Science and Technology, Hokkaido University
 

Committee Memberships

 
Apr 2018
 - 
Today
The Laser Society of Japan Photoacoustic Imaging Technical Meeting  Party Organizer
 

Awards & Honors

 
Oct 2013
Research Award, Japanese Society for Medical and Biological Engineering, Hokkaido Branch
Winner: Daiki Ogawa, Hirotaka Sasaki, Takeshi Namita, Yuji Kato and Koichi Shimizu
 
Mar 2003
Student Award of Hokkaido Branch, The Institute of Electronics, Information and Communication Engineers
 

Published Papers

 
Nakahata Kazuyuki, Ogi Keiji, Mizukami Koichi, Ohira Katsumi, Maruyama Masayuki, Wada Satoshi, Namita Takeshi, Shiina Tsuyoshi
ELECTRONICS AND COMMUNICATIONS IN JAPAN   102(5) 35-42   May 2019   [Refereed]
Yo Uchimoto, Takeshi Namita, Kengo Kondo, Makoto Yamakawa, Tsuyoshi Shiina
Photons Plus Ultrasound: Imaging and Sensing 2019      Feb 2019   [Refereed]
Kyosuke Asada, Takeshi Namita, Kengo Kondou, Makoto Yamakawa, Tsuyoshi Shiina
Photons Plus Ultrasound: Imaging and Sensing 2019      Feb 2019   [Refereed]
中畑和之, 黄木景二, 水上孝一, 大平克己, 丸山真幸, 和田智之, 浪田健, 椎名毅
電気学会論文誌 C   139(2) 142‐148(J‐STAGE)   2019   [Refereed]
Shunto Takaoka, Kengo Kondo, Takeshi Namita, Makoto Yamakawa, Tsuyoshi Shiina
2018 IEEE International Ultrasonics Symposium (IUS)      Oct 2018   [Refereed]
浅田恭輔, 浪田健, 近藤健悟, 山川誠, 椎名毅, 椎名毅
電子情報通信学会技術研究報告   118(229(US2018 49-62)) 43‐47   Sep 2018
内本陽, 浪田健, 近藤健悟, 山川誠, 椎名毅, 椎名毅
電子情報通信学会技術研究報告   118(229(US2018 49-62)) 49‐54   Sep 2018
Kazuyuki Nakahata, Keiji Ogi, Takeshi Namita, Katsumi Ohira, Masayuki Maruyama, Tsuyoshi Shiina
AIP Conference Proceedings   1949    Apr 2018   [Refereed]
© 2018 Author(s). Photoacoustic imaging comprises an optical excitation within a target zone and the detection of the ultrasonic wave so created. A pulsed laser illuminates the target zone, and this illumination causes rapid thermoelastic expansio...
Yo Uchimoto, Takeshi Namita, Kengo Kondo, Makoto Yamakawa, Tsuyoshi Shiina
Progress in Biomedical Optics and Imaging - Proceedings of SPIE   10494    Jan 2018   [Refereed]
© COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only. Photoacoustic imaging is anticipated for use in portraying blood vessel structures (e.g. neovascularization in inflamed regions). To reduce invasiveness and enhance ...
Misaki Nishiyama, Takeshi Namita, Kengo Kondo, Makoto Yamakawa, Tsuyoshi Shiina
Progress in Biomedical Optics and Imaging - Proceedings of SPIE   10494    Jan 2018   [Refereed]
© COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only. For early diagnosis of rheumatoid arthritis (RA), it is important to visualize its potential marker, vascularization in the synovial membrane of the finger joints. P...
Shiori Fujii, Takeshi Namita, Kengo Kondo, Makoto Yamakawa, Tsuyoshi Shiina, Masatoshi Kudo
IEEE International Ultrasonics Symposium, IUS      Oct 2017   [Refereed]
© 2017 IEEE. In chronic hepatitis diagnosis, shear wave elastography is utilized for evaluating fibrosis progression. It is expected that the accuracy will be improved by measuring the viscosity in addition to the elasticity. However, the shear wa...
Takuya Matsumoto, Kengo Kondo, Takeshi Namita, Makoto Yamakawa, Tsuyoshi Shiina
IEEE International Ultrasonics Symposium, IUS      Oct 2017   [Refereed]
© 2017 IEEE. Shear wave elastography is useful for quantitatively evaluating tissue elasticity by measuring the speed of a shear wave induced within the body by acoustic radiation force. We proposed a pushing-and-tracking sequence, coded push-puls...
Yuya Murata, Takeshi Namita, Kengo Kondo, Makoto Yamakawa, Tsuyoshi Shiina
IEEE International Ultrasonics Symposium, IUS      Oct 2017   [Refereed]
© 2017 IEEE. In recent years, skin aging caused by ultraviolet light exposure (i.e. photoaging) has garnered attention in the fields of beauty and health care because photoaging accelerates skin aging. However, few practical techniques exist for t...
浪田健, 橋本一輝, 平野進, 内本陽, 近藤健悟, 山川誠, 椎名毅
超音波Techno   29(5) 94‐98   Oct 2017
浪田健, 平野進, 内本陽, 近藤健悟, 山川誠, 椎名毅
光学   46(9) 359‐364   Sep 2017   [Refereed][Invited]
内本陽, 浪田健, 近藤健悟, 山川誠, 椎名毅
日本超音波医学会光超音波画像研究会プログラム・抄録集   2017(2nd) 40‐44   Aug 2017
Takeshi Namita, Mitsuki Sato, Kengo Kondo, Makoto Yamakawa, Tsuyoshi Shiina
Progress in Biomedical Optics and Imaging - Proceedings of SPIE   10064    Jan 2017   [Refereed]
© 2017 SPIE.Diabetes, a typical lifestyle-related disease, is an important disease presenting risks of various complications such as retinopathy, kidney failure, and nervous neuropathy. To treat diabetes, regular and continual self-measurement of ...
Takeshi Namita, Yuya Murata, Junji Tokuyama, Kengo Kondo, Makoto Yamakawa, Tsuyoshi Shiina
Progress in Biomedical Optics and Imaging - Proceedings of SPIE   10064    Jan 2017   [Refereed]
© 2017 SPIE.Photoacoustic imaging has garnered constant attention as a non-invasive modality for visualizing details of the neovascularization structure of tumors, or the distribution of oxygen saturation, which is related to the tumor grade. Howe...
村田勇也, 浪田健, 近藤健悟, 山川誠, 椎名毅
日本超音波医学会光超音波画像研究会プログラム・抄録集   2016(3rd) 5‐7   Nov 2016
平野進, 浪田健, 近藤健悟, 山川誠, 椎名毅
日本超音波医学会光超音波画像研究会プログラム・抄録集   2016(2nd) 59‐63   Aug 2016
高山裕成, 近藤健悟, 浪田健, 山川誠, 椎名毅
日本超音波医学会光超音波画像研究会プログラム・抄録集   2016(2nd) 49‐53   Aug 2016
Jang Jun-keun, Kondo Kengo, Namita Takeshi, Yamakawa Makoto, Shiina Tsuyoshi
JAPANESE JOURNAL OF APPLIED PHYSICS   55(7)    Jul 2016   [Refereed]
徳山純嗣, 浪田健, 近藤健悟, 山川誠, 椎名毅
日本超音波医学会光超音波画像研究会プログラム・抄録集   2015(4th) 2‐4   Mar 2016
Susumu Hirano, Takeshi Namita, Kengo Kondo, Makoto Yamakawa, Tsuyoshi Shiina
Progress in Biomedical Optics and Imaging - Proceedings of SPIE   9708    Jan 2016   [Refereed]
© 2016 SPIE.Patients affected by diseases caused by arteriosclerosis are increasing. Atherosclerosis, which is becoming an especially difficult health problem, forms plaques from lipids such as cholesterol located in walls of the aorta, cerebral a...
Kondo Kengo, Namita Takeshi, Yamakawa Makoto, Shiina Tsuyoshi
IEEE Conference Proceedings   2016(IUS) 1‐3   2016   [Refereed]
衞藤卓也, 浪田健, 近藤健悟, 山川誠, 椎名毅
日本超音波医学会光超音波画像研究会プログラム・抄録集   2015(2nd) 3-8   Aug 2015
Cong Bing, Kondo Kengo, Namita Takeshi, Yamakawa Makoto, Shiina Tsuyoshi
Jpn. J. Appl. Phys.   54(7)    Jun 2015   [Refereed]
A constant sound speed (i.e., 1540 m/s) is generally used in various ultrasound (US) and photoacoustic (PA) image reconstruction algorithms based on the assumption of a homogeneous sound speed in human tissue. However, the variation of the sound s...
関 大輔, 浪田 健, 加藤 祐次
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報   114(514) 47-52   Mar 2015
佐々木 洋天, 浪田 健, 加藤 祐次
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報   114(514) 41-46   Mar 2015
田中 宏幸, 浪田 健, 加藤 祐次
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報   114(514) 35-40   Mar 2015
SEKI Daisuke, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   114(514) 47-52   Mar 2015
To realize practical optical communication through human body, an experimental study was conducted on the near-infrared light propagation through model phantoms and a human hand. In the experiment with the phantom, it was found that the longer com...
SASAKI Hirotaka, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   114(514) 41-46   Mar 2015
To improve the transcutaneous fluorescent image of an animal body, we derived a point-spread function (PSF) at a cylindrical surface of a diffuse scattering medium. For practical applications, a new CT algorithm was developed. In this technique, a...
Tanaka Hiroyuki, Namita Takeshi, Kato Yuji, Shimizu Koichi
IEICE technical report. ME and bio cybernetics   114(514) 35-40   Mar 2015
We have analyzed the beam-wave propagation in random media, and applied it to the transillumination imaging using practically useful light-beam illumination. However, the capability of the technique was not sufficient with respect to the scatterin...
SEKI Daisuke, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. Neurocomputing   114(515) 47-52   Mar 2015
To realize practical optical communication through human body, an experimental study was conducted on the near-infrared light propagation through model phantoms and a human hand. In the experiment with the phantom, it was found that the longer com...
SASAKI Hirotaka, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. Neurocomputing   114(515) 41-46   Mar 2015
To improve the transcutaneous fluorescent image of an animal body, we derived a point-spread function (PSF) at a cylindrical surface of a diffuse scattering medium. For practical applications, a new CT algorithm was developed. In this technique, a...
Tanaka Hiroyuki, Namita Takeshi, Kato Yuji, Shimizu Koichi
IEICE technical report. Neurocomputing   114(515) 35-40   Mar 2015
We have analyzed the beam-wave propagation in random media, and applied it to the transillumination imaging using practically useful light-beam illumination. However, the capability of the technique was not sufficient with respect to the scatterin...
Masataka Azuma, Haichong K. Zhang, Kengo Kondo, Takeshi Namita, Makoto Yamakawa, Tsuyoshi Shiina
Progress in Biomedical Optics and Imaging - Proceedings of SPIE   9323    Jan 2015   [Refereed]
© 2015 SPIE. Photoacoustic Computed Tomography (PACT) records signals from a wide range of angles to achieve uniform, highresolution images. A high-power laser is generally used for PACT, but the long acquisition time with a single probe is a prob...
Kazuhiro Nishida, Takeshi Namita, Yuji Kato, Koichi Shimizu
Progress in Biomedical Optics and Imaging - Proceedings of SPIE   9319    Jan 2015   [Refereed]
© 2015 SPIE. We have proposed a new nonlinear inversion technique to estimate the spatial distribution of the absorption coefficient (μa) in the depth direction of a turbid medium by spatially resolved backscattering measurement. With this techniq...
TRAN Trung Nghia, Yamamoto Kohei, Namita Takeshi, Kato Yuji, Shimzu Koichi
IEICE technical report. ME and bio cybernetics   114(79) 71-76   Jun 2014
To realize three-dimensional optical imaging using transillumination images, we developed a novel technique to suppress the scattering effect in a transillumination image and reconstruct a three-dimensional image of the internal light-absorbing st...
Tran TN, Yamamoto K, Namita T, Kato Y, Shimizu K
Biomedical optics express   5 1321-1335   May 2014   [Refereed]
Natsume Yuya, Namita Takeshi, Kato Yuji, Kitama Masataka, Shimizu Koichi
IEICE technical report. ME and bio cybernetics   113(499) 127-131   Mar 2014
For optical observation of arteriovenous fistula in dialysis treatment, we have developed a transmission image improvement technique using the measured point spread function (PSF) of implanted fluorescent source inside the body. In the experimenta...
OGAWA Daiki, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   113(499) 121-126   Mar 2014
To improve the transcutaneous fluorescent image of an animal body, we derived a point-spread function (PSF) at a cylindrical surface of a diffuse scattering medium. In this technique, distortion problem of the restored shape was remained. To solve...
OBA Kazuhiro, YOKOYAMA Naoya, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   113(499) 109-114   Mar 2014
We have developed a technique to estimate the spatial distribution of the absorption coefficient (μ_a) of turbid medium by the time-resolved measurement of backscattered light, and verified its feasibility in simulation and experiments. For accura...
YAMAMOTO KOHEI, TRAN TRUNG NGHIA, NAMITA TAKESHI, KATO YUJI, SHIMIZU KOICHI
電子情報通信学会技術研究報告   113(499(MBE2013 115-148)) 115-120   Mar 2014
To improve near-infrared transillumination images of biological tissue, a new scattering suppression technique was developed. It enables us to apply the point spread function (PSF) derived for light source to the transillumination image of an abso...
Trung Nghia Tran, Kohei Yamamoto, Takeshi Namita, Yuji Kato, Koichi Shimizu
Progress in Biomedical Optics and Imaging - Proceedings of SPIE   8952    Jan 2014   [Refereed]
To realize three-dimensional (3D) optical imaging of the internal structure of animal body, we have developed a new technique to reconstruct CT images from two-dimensional (2D) transillumination images. In transillumination imaging, the image is b...
J. Akiyama; D. Seki; T. Namita; Y. Kato; K. Shimizu
International Symposium on Medical Information and Communication Technology, ISMICT   14-17   Aug 2013   [Refereed]
To examine the practical potential of an optical body area network (BAN) technique, a feasibility study was conducted of optical data transmission through a human hand using diffusely scattered light. The data transmission of 170 mm distance in a ...
Sakurai T, Takeda S, Takahashi JY, Takahashi Y, Wada N, Trirongjitmoah S, Namita T, Jin S, Ikuta A, Furumaki H, Hui SP, Fuda H, Fujikawa M, Shimizu K, Chiba H
Annals of clinical biochemistry      Jul 2013   [Refereed]
YOKOTA Shun, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   112(479) 173-177   Mar 2013
The absorption at a specific position inside a turbid medium can be measured by back-propagating the scattered light using phase conjugate light and focused ultrasonic modulation. With the view toward clear imaging through turbid medium, we constr...
Matsuura Taiki, Namita Takeshi, Kato Yuji, Shimizu Koichi
IEICE technical report. ME and bio cybernetics   112(479) 167-172   Mar 2013
For the 3D non-invasive imaging of shallow regions of a human body, we have developed a new technique to reconstruct the absorbing structure from optical transillumination images obtained in limited view angle. The effectiveness of the proposed te...
MORIMOTO Takuro, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   112(479) 139-144   Mar 2013
To realize the tissue oxygen saturation imaging by time-resolved measurement of backscattered light, appropriate wavelengths have been chosen from the absorption spectrum of hemoglobin. For the precise estimation in the medium with spatially inhom...
XIA Jiao, NAMITA Takeshi, Kato Yuji, Shimizu Koichi
IEICE technical report. ME and bio cybernetics   112(479) 127-132   Mar 2013
To obtain a clear image in transcutaneous fluorescent imaging, we have newly developed a technique to simultaneously estimate the depth and optical coefficients which have to be known a priori to improve fluorescent images. The feasibility of the ...
OKUYAMA Yuki, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   112(479) 121-126   Mar 2013
To realize the practical transillumination imaging with beam-wave incidence. we had derived the equation of beam-wave propagation in a turbid medium theoretically, and formulated the procedure of image processing. The validity and effectiveness of...
AKIYAMA JUNKICHI, NAMITA TAKESHI, KATO YUJI, SHIMIZU KOICHI
電子情報通信学会技術研究報告   112(479(MBE2012 88-129)) 179-184   Mar 2013
To realize practical optical communication through human body, an experimental study was conducted on the near-infrared light propagation through model phantoms and a human hand. In a backscattering configuration, the optical data transmission ove...
OBATA KYOHEI, NAMITA TAKESHI, KATO YUJI, SHIMIZU KOICHI
電子情報通信学会技術研究報告   112(479(MBE2012 88-129)) 133-138   Mar 2013
A technique was newly developed to estimate the thickness of a fluorescent object in a turbid medium, such as an animal body. In this technique. we estimate the thickness from the different in the fluorescent intensity caused by the difference in ...
K. Iinaga; T. Namita; T. Sakurai; H. Chiba; K. Shimizu
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS   1214-1217   2013   [Refereed]
J. Xia; T. Namita; Y. Kato; K. Shimizu
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS   2648-2651   2013   [Refereed]
T. Matsuura; T. Namita; Y. Kato; K. Shimizu
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS   1795-1798   2013   [Refereed]
T.N. Tran; T. Namita; Y. Kato; K. Shimizu
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS   2644-2647   2013   [Refereed]
T.T. Nghia; T. Namita; Y. Kato; K. Shimizu
IFMBE Proceedings   40 IFMBE 22-24   2013   [Refereed]
K. Shimizu; N. Tobisawa; T.T. Nghia; T. Namita; Y. Kato
IFMBE Proceedings   40 IFMBE 13-16   2013   [Refereed]
K. Iinaga; T. Namita; T. Sakurai; H. Chiba; K. Shimizu
Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest      2013   [Refereed]
K. Nishida; T. Namita; Y. Kato; K. Shimizu
Progress in Biomedical Optics and Imaging - Proceedings of SPIE   8578    2013   [Refereed]
西田 浩平, 浪田 健, 加藤 祐次
電子情報通信学会技術研究報告 : 信学技報   111(482) 13-18   Mar 2012
MATSUDA Yasushi, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   111(482) 151-156   Mar 2012
We have shown the possibility of transillumination imaging of the arteries in the adult forearm as well as the veins. Using the change of absorption spectra of blood hemoglobin, we can expect to discriminate the arteries from the veins in the tran...
TOZAWA Eiji, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   111(482) 123-128   Mar 2012
To improve the transcutaneous fluorescent image of an animal body, we derived the depth dependent point-spread function (PSF) for the fluorescent object in scattering medium and demonstrated scattering suppression technique using the depth depende...
ISHII Hisaya, NAMITA Takeshi, YAMAGUCHI Taihiko, SAITO Miku, SHIBUYA Eiji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   111(482) 31-36   Mar 2012
To investigate the relevance between the sleep apnea and the sleep bruxism (SB), we devised an algorithm to detect the occurrence of SB in the EMG of masseter muscle. EMG waveforms of SB were extracted based on the temporal change of the degree of...
SUGIYAMA Keita, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   111(482) 25-30   Mar 2012
The absorption distribution along the depth direction in a turbid medium can be estimated in the time-resoloved measurement. For accurate estimation of the absorption distribution in scattering medium, a new technique which is applicable even to l...
TAKAHASHI Hiroki, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   111(482) 19-24   Mar 2012
To improve NIR transillumination images of animal body, the application of the point spread function (PSF) derived for fluorescent source inside the body was attempted. Through experimental study, the applicability was demonstrated. In addition, t...
NISHIDA Kohei, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   111(482) 13-18   Mar 2012
The transillumination image of blood vessels for vein authentication are blurred by the strong scattering of the body tissue. Scattering and absorption property of biological tissue depends on the wavelength. A technique was newly developed to imp...
WEI Dingding, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   111(482) 7-12   Mar 2012
A dynamic light scattering (DLS) technique has been applied to quantify the amount of the small dense low-density lipoprotein (sdLDL) which is clinically significant for coronary diseases. A technique to obtain the size distribution of LDL particl...
OTANI Masafumi, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   111(482) 1-6   Mar 2012
We have developed a technique to estimate the absorption coefficient (μ_a) of turbid medium by the time-resolved measurement of backscattered light, and verified its feasibility in simulation and experiments. For accurate estimation of the absorpt...
魏 丁丁, 浪田 健, 加藤 祐次
電子情報通信学会技術研究報告 : 信学技報   111(482) 7-12   Mar 2012
Koichi Shimizu,Takeshi Namita,Yuji Kato
Wireless Mobile Communication and Healthcare - Third International Conference, MobiHealth 2012, Paris, France, November 21-23, 2012, Revised Selected Papers   61 173-178   2012   [Refereed]
SHIMANO Moto, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   110(460) 153-158   Feb 2011
To see through a turbid medium, a technique was developed to reconstruct a three-dimensional structure inside the medium. Clear transillumination images were obtained with a scattering suppression technique in which the weakly scattered light comp...
TOBISAWA Naoya, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   110(460) 147-152   Feb 2011
To assist vascular injection, we have developed a simultaneous observation system using a body surface image and a transillumination image of blood vessels. Light source was devised to make homogeneous, wide-area and low-leak illumination possible...
M. Shimano; T. Namita; Y. Kato; K. Shimizu
2011 Symposium on Photonics and Optoelectronics, SOPO 2011      2011   [Refereed]
N. Tobisawa; T. Namita; Y. Kato; K. Shimizu
5th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2011      2011   [Refereed]
CHIKAHISA Tomoya, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report   109(460) 127-132   Mar 2010
The possibility of new biological measurement by time resolved analysis of the optical backscattering enhancement was pursued. Through simulation analysis for various optical parameter changes, the extinction time of the enhancement peak was selec...
YOSHIMURA Hitoshi, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   109(460) 89-94   Mar 2010
To realize functional imaging by time-resolved measurement of backscattered light, a technique has been developed to estimate the spatial distribution of tissue oxygen saturation. In theoretical analysis on the estimation error, the measurement co...
SHIMIZU Koichi, NAMITA Takeshi, KATO Yuji
電気学会研究会資料. IM, 計測研究会   2010(1) 33-38   Feb 2010
SHIMIZU Koichi, NAMITA Takeshi, KATO Yuji
電気学会研究会資料. LAV, 光応用・視覚研究会   2010(6) 33-38   Feb 2010
KAWASHIMA Masayuki, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
電気学会研究会資料. MBE, 医用・生体工学研究会   2010(1) 97-102   Jan 2010
KAWASHIMA Masayuki, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report   109(406) 97-102   Jan 2010
We developed a technique to estimate the reduced scattering coefficient (μ_s') of turbid medium by the time-resolved measurement of backscattered light, and verified its feasibility in simulation. Here, we examined the accuracy and the characteris...
TRIRONGJITMOAH Suchin, SAKURAI Toshihiro, NISHIBATA Yuka, NAMITA Takeshi, KATO Yuji, IINAGA Kazuya, CHIBA Hitoshi, SHIMIZU Koichi
電気学会研究会資料. MBE, 医用・生体工学研究会   2009(71) 23-28   Jun 2009
TRIRONGJITMOAH SUCHIN, SAKURAI TOSHIHIRO, NISHIBATA YUKA, NAMITA TAKESHI, KATO YUJI, IINAGA KAZUYA, CHIBA HITOSHI, SHIMIZU KOICHI
電子情報通信学会技術研究報告   109(106(MBE2009 13-17)) 23-28   Jun 2009
The amount of small dense low density lipoprotein (sdLDL) is known to have high correlation with coronary diseases. To realize a practical quantitative evaluation of sdLDL, we applied the dynamic light scattering (DLS) technique. Three methods wer...
T. Namita; Y. Kato; K. Shimizu
Applied Optics   48(10) D208-D217   2009   [Refereed]
T. Sakurai; S. Trirongjitmoah; Y. Nishibata; T. Namita; M. Tsuji; S.-P. Hui; S. Jin; K. Shimizu; H. Chiba
Annals of Clinical Biochemistry   47(Pt 5) 476-481   Sep 2010   [Refereed]
T. Namita; M. Otani; Y. Kato; K. Shiniizu
2011 Int. Quantum Electron. Conf., IQEC 2011 and Conf. Lasers and Electro-Optics, CLEO Pacific Rim 2011 Incorporating the Australasian Conf. Optics, Lasers and Spectroscopy and the Australian Conf.   701-703   2011   [Refereed]
T. Namita; M. Kawashima; Y. Kato; K. Shiniizu
2011 Int. Quantum Electron. Conf., IQEC 2011 and Conf. Lasers and Electro-Optics, CLEO Pacific Rim 2011 Incorporating the Australasian Conf. Optics, Lasers and Spectroscopy and the Australian Conf.   1696-1698   2011   [Refereed]
Takeshi Namita, Yuji Kato, Koichi Shimizu
Biomedical Optics, BIOMED 2008      Dec 2008   [Refereed]
For cross-sectional imaging of an animal body, the technique using backscattered light and repetitive inverse solution was developed. The effectiveness of the new technique was verified in simulation and the experiment using biological tissue. ©20...
KUBO Yoshihiro, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report. ME and bio cybernetics   107(541) 53-56   Mar 2008
The backscattering enhancement has been studied with continuous light. We attempted the time-resolved analysis for this phenomenon. It was newly found that the width of the backscattering enhancement peak becomes narrower as time goes in the risin...
CT imaging of biological tissue using backscattered light
T. Namita; Y. Kato; K. Shimizu
Biomedical Optics, BIOMED 2008   BMD35   Mar 2008   [Refereed]
KANAZAWA Rui, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
IEICE technical report   107(460) 29-32   Jan 2008
A technique was developed to estimate the scattering coefficient of diffuse medium such as a biological body by the time-resolved measurement of backscattered light. The effectiveness of the technique was confirmed in the Monte Carlo simulation. I...
KANAZAWA Rui, NAMITA Takeshi, KATO Yuji, SHIMIZU Koichi
電気学会研究会資料. MBE, 医用・生体工学研究会   2008(1) 29-32   Jan 2008
NAMITA Takeshi,KATO Yuji,SHIMIZU Koichi
Tech Dig Int Conf Opt photonics Des Fabr   6th 47-48   2008   [Refereed]

Misc

 
内本陽, 浪田健, 近藤健悟, 山川誠, 椎名毅
電気学会全国大会講演論文集(CD-ROM)   2019 ROMBUNNO.3‐014   Mar 2019
仲尾勇輝, 内本陽, 浪田健, 近藤健悟, 山川誠, 椎名毅
Optics & Photonics Japan講演予稿集(CD-ROM)   2018 ROMBUNNO.31aB6   Oct 2018
内本陽, 浪田健, 近藤健悟, 山川誠, 椎名毅
Optics & Photonics Japan講演予稿集(CD-ROM)   2018 ROMBUNNO.31aB5   Oct 2018
せん断波伝播の2mode群速度計測に基づく組織粘弾性の定量的評価
三宅 架偉, 山川 誠, 近藤 健悟, 浪田 健, 椎名 毅
超音波医学   45(Suppl.) S579-S579   Apr 2018
半球型光超音波センサによる超音波イメージング法の基礎的検討
髙岡 駿斗, 近藤 健悟, 浪田 健, 山川 誠, 椎名 毅
超音波医学   45(Suppl.) S589-S589   Apr 2018
Fundamental study for subcutaneous photoacoustic imaging using handheld system
Yo Uchimoto, Takeshi Namita, Kengo Kondo, Makoto Yamakawa, Tsuyoshi Shiina
レーザー学会学術講演会第38回年次大会講演予稿集   I325aⅡ03   Jan 2018
{Invited] Tissue characterization using multi-wavelength photoacoustic imaging system
Takeshi Namita, Yo Uchimoto, Yuya Murata, Kyosuke Asada, Yuki Nakao, Kengo Kondo, Makoto Yamakawa, Tsuyoshi Shiina
レーザー学会学術講演会第38回年次大会講演予稿集   S1224pⅡ05   Jan 2018   [Invited]
新しい画像診断装置光超音波イメージングによる血管画像の特徴と描出能
今西 宣晶, 相磯 貞和, 戸井 雅和, 椎名 毅, 山川 誠, 浪田 健, 関口 博之, 八木 隆行, 浅尾 恭史, 佐藤 いまり, 備瀬 竜馬
日本マイクロサージャリー学会学術集会プログラム・抄録集   44回 111-111   Dec 2017
Fundamental study for biological photoacoustic imaging using handheld ultrasound probe
Yo Uchimoto, Takeshi Namita, Kengo Kondo, Makoto Yamakawa, Tsuyoshi Shiina
レーザー学会学術講演会第37回年次大会講演予稿集   I408pⅦ04   Jan 2017
[Invited] Evaluation of lipid-rich plaque using handheld photoacoustic imaging system
Takeshi Namita, Susumu Hirano, Kengo Kondo, Makoto Yamakawa, Tsuyoshi Shiina
レーザー学会学術講演会第37回年次大会講演予稿集   S708aⅦ04   Jan 2017   [Invited]
仲尾勇輝, 内本陽, 浪田健, 近藤健悟, 山川誠, 椎名毅
Optics & Photonics Japan講演予稿集(CD-ROM)   2017 ROMBUNNO.31aB4   Oct 2017
村田勇也, 浪田健, 近藤健悟, 山川誠, 椎名毅
Optics & Photonics Japan講演予稿集(CD-ROM)   2017 ROMBUNNO.31aB5   Oct 2017
浪田健, 村田勇也, 近藤健悟, 山川誠, 椎名毅, 椎名毅
超音波医学   44(Supplement (CD-ROM)) S189(J‐STAGE)   Apr 2017
松本拓也, 近藤健悟, 浪田健, 山川誠, 椎名毅
超音波医学   44(Supplement (CD-ROM)) S454(J‐STAGE)   Apr 2017
藤井志桜里, 近藤健悟, 浪田健, 山川誠, 椎名毅
超音波医学   44(Supplement (CD-ROM)) S454(J‐STAGE)   Apr 2017
下野剛拓, 近藤健悟, 浪田健, 山川誠, 椎名毅
電子情報通信学会大会講演論文集(CD-ROM)   2017 ROMBUNNO.D‐7‐1   Mar 2017
JANG Jun‐keun, KONDO Kengo, NAMITA Takeshi, YAMAKAWA Makoto, SHIINA Tsuyoshi
超音波エレクトロニクスの基礎と応用に関するシンポジウム(CD-ROM)   37th ROMBUNNO.2E2‐3   Nov 2016   [Refereed]
JANG Jun‐keun, 近藤健悟, 浪田健, 山川誠, 椎名毅
超音波医学   43 S540(J‐STAGE)   Apr 2016
浪田健, 平野進, 近藤健悟, 山川誠, 椎名毅
超音波医学   43 S232(J‐STAGE)   Apr 2016   [Invited]
HIGASHI MASATAKA, CHO KAISHU, KONDO KENGO, NAMITA TAKESHI, YAMAKAWA MAKOTO, SHIINA TSUYOSHI
超音波医学   42(3) 380   May 2015
SATO MITSUTERU, NAMITA TAKESHI, KONDO KENGO, YAMAKAWA MAKOTO, SHIINA TSUYOSHI
超音波医学   42(3) 380   May 2015
SO HYO, KONDO KENGO, NAMITA TAKESHI, YAMAKAWA MAKOTO, SHIINA TSUYOSHI
超音波医学   42(2) 255   Mar 2015
平野進, 浪田健, 近藤健悟, 山川誠, 椎名毅
超音波医学   42 S225(J-STAGE)   Apr 2015   [Invited]
Jang Jun-keun, Kondo Kengo, Namita Takeshi, Yamakawa Makoto, Shiina Tsuyoshi
Proceedings of Symposium on Ultrasonic Electronics   36(0) _3P5-13-1_-_3P5-13-2_   2015   [Refereed]
AZUMA MASATAKA, ZHANG HAICHONG K., KONDO KENGO, NAMITA TAKESHI, YAMAKAWA MAKOTO, SHIINA TSUYOSHI
超音波エレクトロニクスの基礎と応用に関するシンポジウム講演予稿集   35th 149-150   Dec 2014   [Refereed]
TANAKA HIROYUKI, NAMITA TAKESHI, KATO YUJI, SHIMIZU KOICHI
Optics & Photonics Japan講演予稿集(CD-ROM)   2014 ROMBUNNO.6AA7   Oct 2014
SATO MITSUTERU, NAMITA TAKESHI, KONDO KENGO, YAMAKAWA MAKOTO, SHIINA TSUYOSHI
超音波医学   41(3) 475   May 2014
Azuma Masataka, Zhang Haichong K., Kondo Kengo, Namita Takeshi, Yamakawa Makoto, Shiina Tsuyoshi
Proceedings of Symposium on Ultrasonic Electronics   35(0) 149-150   2014   [Refereed]
HASHIMOTO KAZUAKI, NAMITA TAKESHI, KONDO KENGO, YAMAKAWA MAKOTO, SHIINA TSUYOSHI
超音波医学   41 S203   Apr 2014   [Invited]
山本航平, 田中宏幸, NGHIA Tran Trung, 浪田健, 加藤祐次, 清水孝一
Optics & Photonics Japan講演予稿集(CD-ROM)   2013 ROMBUNNO.14PD1   Nov 2013
夏目裕也, 浪田健, 加藤祐次, 北間正崇, 清水孝一
Optics & Photonics Japan講演予稿集(CD-ROM)   2013 ROMBUNNO.12AA2   Nov 2013
大場一寛, 横山直弥, 浪田健, 加藤祐次, 清水孝一
Optics & Photonics Japan講演予稿集(CD-ROM)   2013 ROMBUNNO.14AD9   Nov 2013
小川大貴, 浪田健, 加藤祐次, 清水孝一
Optics & Photonics Japan講演予稿集(CD-ROM)   2013 ROMBUNNO.14AD8   Nov 2013
関大輔, 浪田健, 加藤祐次, 清水孝一
電子情報通信学会大会講演論文集(CD-ROM)   2013 ROMBUNNO.BS-9-5   Sep 2013
Seki Daisuke, Namita Takeshi, Kato Yuji, Shimizu Koichi
Proceedings of the Society Conference of IEICE   2013(2) "S-147"-"S-148"   Sep 2013
森本拓朗, 浪田健, 加藤祐次, 清水孝一
生体医工学   50(4) 358   Aug 2012
加藤祐次, 浪田健, 清水孝一
電気・情報関係学会北海道支部連合大会講演論文集(CD-ROM)   2012 ROMBUNNO.134   Oct 2012
櫻井俊宏, 櫻井俊宏, 高橋順也, 武田晴治, SUCHIN Trirongjitmoah, 浪田健, 神繁樹, 清水孝一, 千葉仁志
臨床病理   60 117   Oct 2012
WEI Dingding,NAMITA Takeshi,KATO Yuji,SHIMIZU Koichi
日本生体医工学会大会プログラム・論文集(CD-ROM)   51st ROMBUNNO.O3-10-2   2012
NGHIA Tran Trung,YAMAMOTO Kohei,NAMITA Takeshi,KATO Yuji,SHIMIZU Koichi
Optics & Photonics Japan講演予稿集(CD-ROM)   2012 ROMBUNNO.23PA6   2012
石井久也, 浪田健, 山口泰彦, 斎藤未來, 澁谷英二, 清水孝一
日本生体医工学会大会プログラム・論文集(CD-ROM)   51st ROMBUNNO.O1-12-2   2012
杉山慶多, 浪田健, 加藤祐次, 清水孝一
日本生体医工学会大会プログラム・論文集(CD-ROM)   51st ROMBUNNO.O3-10-3   2012
森本拓朗, 浪田健, 大場一寛, 加藤祐次, 清水孝一
Optics & Photonics Japan講演予稿集(CD-ROM)   2012 ROMBUNNO.24PA14   2012
奥山雄基, 浪田健, 加藤祐次, 清水孝一
Optics & Photonics Japan講演予稿集(CD-ROM)   2012 ROMBUNNO.24PA12   2012
高橋博樹, 浪田健, 加藤祐次, 清水孝一
日本生体医工学会大会プログラム・論文集(CD-ROM)   51st ROMBUNNO.O3-09-3   2012
松田康志, 浪田健, 加藤祐次, 清水孝一
日本生体医工学会大会プログラム・論文集(CD-ROM)   51st ROMBUNNO.O3-10-1   2012
松浦太紀, 浪田健, 加藤祐次, 清水孝一
日本生体医工学会大会プログラム・論文集(CD-ROM)   51st ROMBUNNO.O3-09-2   2012
奥山雄基, 浪田健, 加藤祐次, 清水孝一
日本生体医工学会大会プログラム・論文集(CD-ROM)   51st ROMBUNNO.O3-09-4   2012
小幡恭平, 浪田健, 加藤祐次, 清水孝一
Optics & Photonics Japan講演予稿集(CD-ROM)   2012 ROMBUNNO.24PA9   2012
小幡恭平, 浪田健, 加藤祐次, 清水孝一
日本生体医工学会大会プログラム・論文集(CD-ROM)   51st ROMBUNNO.O3-10-5   2012
XIA Jiao, 浪田健, 加藤祐次, 清水孝一
日本生体医工学会大会プログラム・論文集(CD-ROM)   50th ROMBUNNO.O3-7-2   2011
西田浩平, 浪田健, 加藤祐次, 清水孝一
日本生体医工学会大会プログラム・論文集(CD-ROM)   50th ROMBUNNO.O3-7-3   2011
飛澤直哉, 松田康志, 浪田健, 加藤祐次, 清水孝一
日本生体医工学会大会プログラム・論文集(CD-ROM)   50th ROMBUNNO.O3-6-5   2011
嶋野心, 浪田健, 加藤祐次, 清水孝一
日本生体医工学会大会プログラム・論文集(CD-ROM)   50th ROMBUNNO.O3-6-4   2011
石井久也, 浪田健, 山口泰彦, 澁谷英二, LAVIGNE Gilles, 清水孝一
日本生体医工学会大会プログラム・論文集(CD-ROM)   50th ROMBUNNO.O1-7-6   2011
戸澤英二, 浪田健, 加藤祐次, 清水孝一
日本生体医工学会大会プログラム・論文集(CD-ROM)   50th ROMBUNNO.O3-6-6   2011
松田康志, 飛澤直哉, 浪田健, 加藤祐次, 清水孝一
Optics & Photonics Japan講演予稿集(CD-ROM)   2011 ROMBUNNO.29PD9   2011
西田浩平, 浪田健, 加藤祐次, 清水孝一
Optics & Photonics Japan講演予稿集(CD-ROM)   2011 ROMBUNNO.30AF7   2011
西田和弘, 浪田健, 加藤祐次, 清水孝一
Optics & Photonics Japan講演予稿集(CD-ROM)   2011 ROMBUNNO.29AD4   2011
大谷真史, 浪田健, 加藤祐次, 清水孝一
Optics & Photonics Japan講演予稿集(CD-ROM)   2011 ROMBUNNO.29PD3   2011
XIA Jiao, 浪田健, 加藤祐次, 清水孝一
Optics & Photonics Japan講演予稿集(CD-ROM)   2011 ROMBUNNO.29PD11   2011
高橋博樹, 浪田健, 加藤祐次, 清水孝一
Optics & Photonics Japan講演予稿集(CD-ROM)   2011 ROMBUNNO.29PD12   2011
飛澤直哉, 浪田健, 加藤祐次, 清水孝一
Optics & Photonics Japan講演予稿集   2010 326-327   Nov 2010
嶋野心, 浪田健, 加藤祐次, 清水孝一
Optics & Photonics Japan講演予稿集   2010 324-325   Nov 2010
TRIRONGJITMOAH Suchin,SAKURAI Toshihiro,NISHIBATA Yuka,NAMITA Takeshi,KATO Yuji,IINAGA Kazuya,CHIBA Hitoshi,SHIMIZU Koichi
日本生体医工学会大会プログラム・論文集(CD-ROM)   49th ROMBUNNO.PS3-5-1   2010
TRIRONGJITMOAH Suchin,SAKURAI Toshihiro,NISHIBATA Yuka,NAMITA Takeshi,KATO Yuji,IINAGA Kazuya,CHIBA Hitoshi,SHIMIZU Koichi
Optics & Photonics Japan講演予稿集   2009 64-65   Nov 2009
KAWASHIMA MASAYUKI, NAMITA TAKESHI, KATO YUJI, SHIMIZU KOICHI
Optics & Photonics Japan講演予稿集   2009 50-51   Nov 2009
NAMITA TAKESHI, OTANI MASAFUMI, KAWASHIMA MASAYUKI, KATO YUJI, SHIMIZU KOICHI
Optics & Photonics Japan講演予稿集   2009 62-63   Nov 2009
西端友香, 櫻井俊宏, SUCHIN Trirongjitmoah, 浪田健, 神繁樹, 清水孝一, 千葉仁志
臨床化学   38 149   Jul 2009
トライロンジットモア スチン, 浪田健, 西端友香, 櫻井俊宏, 加藤祐次, 飯永一也, 千葉仁志, 清水孝一
生体医工学   47(3) 321   Jun 2009
浪田健, 川島雅之, 加藤祐次, 清水孝一
日本生体医工学会大会プログラム・論文集(CD-ROM)   48th ROMBUNNO.23AMP1-1-6   2009
近久智哉, 浪田健, 加藤祐次, 清水孝一
日本生体医工学会大会プログラム・論文集(CD-ROM)   48th ROMBUNNO.23AMP1-1-7   2009
清水孝一, 金澤瑠維, 川島雅之, 浪田健, 加藤祐次
電気学会基礎・材料・共通部門大会講演論文集(CD-ROM)   2008 ROMBUNNO.XIX-3   Aug 2008
久保善弘, 浪田健, 加藤祐次, 清水孝一
日本生体医工学会大会プログラム・論文集(CD-ROM)   46th ROMBUNNO.PS1-14-9   2007
浪田健, 金澤瑠維, 加藤祐次, 清水孝一
日本分光学会講演要旨集   2006 136-137   Nov 2006
浪田健, 金澤瑠維, 加藤祐次, 清水孝一
電気・情報関係学会北海道支部連合大会講演論文集(CD-ROM)   2006 ROMBUNNO.142   Oct 2006
浪田健, 金澤瑠雄, 加藤祐次, 清水孝一
日本生体医工学会大会プログラム・論文集   45th 604   May 2006