Dr. Tohoru Takeda Profile

Dr. Tohoru Takeda

Professor at Kitasato Univ

SPIE Involvement:

Author

Publications (22)

Proceedings Article | 7 September 2006 Paper

Paper

Progress in biomedical application of phase-contrast x-ray imaging and fluorescent x-ray CT

Tohoru Takeda, Jin Wu, Thet-Thet Lwin, Akio Yoneyama, Yasuharu Hirai, Kazuyuki Hyodo, Naoki Sunaguchi, Tetsuya Yuasa, Manabu Minami, Katsumi Kose, Takao Akatsuka

Proceedings Volume 6318, 63180W (2006) https://doi.org/10.1117/12.680158

KEYWORDS: X-rays, X-ray imaging, X-ray computed tomography, Image quality, Magnetic resonance imaging, Cancer, In vivo imaging, Spatial resolution, Imaging systems, X-ray detectors

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Proceedings Article | 7 September 2006 Paper

Paper

Fusion imaging of fluorescent and phase-contrast x-ray computed tomography using synchrotron radiation in medical biology

Jin Wu, Tohoru Takeda, Thet Thet Lwin, Naoki Sunaguchi, Tadanori Fukami, Tetsuya Yuasa, Manabu Minami, Takao Akatsuka

Proceedings Volume 6318, 631828 (2006) https://doi.org/10.1117/12.680133

KEYWORDS: Image fusion, X-rays, X-ray computed tomography, Brain, X-ray imaging, X-ray detectors, Heart, Spatial resolution, Animal model studies, Neuroimaging

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Proceedings Article | 26 October 2004 Paper

Paper

SR biomedical imaging with phase-contrast and fluorescent x-ray CT

Tohoru Takeda, Jin Wu, Akio Yoneyama, Yoshinori Tsuchiya, Thet -Thet Lwin, Yasuharu Hirai, Taichi Kuroe, Tetsuya Yuasa, Kazuyaki Hyodo, F. Dilmanian, Takao Akatsuka

Proceedings Volume 5535, (2004) https://doi.org/10.1117/12.560161

KEYWORDS: X-rays, X-ray imaging, X-ray computed tomography, Iodine, Interferometers, Imaging systems, Spatial resolution, X-ray detectors, In vivo imaging, Data acquisition

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Proceedings Article | 26 October 2004 Paper

Paper

Microphase-contrast x-ray computed tomography for basic biomedical study at SPring-8

Jin Wu, Tohoru Takeda, Thet-Thet Lwin, Ichiro Koyama, Atsushi Momose, Akiko Fujii, Yoshitaka Hamaishi, Taichi Kuroe, Tetsuya Yuasa, Yoshio Suzuki, Takao Akatsuka

Proceedings Volume 5535, (2004) https://doi.org/10.1117/12.559390

KEYWORDS: X-ray computed tomography, X-rays, Interferometers, Biomedical optics, X-ray imaging, 3D image processing, Spatial resolution, Spleen, Kidney, Blood

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Proceedings Article | 7 January 2002 Paper

Paper

Computed tomographic images using tube source of x rays: interior properties of the material

Donepudi Rao, Tohoru Takeda, Yuji Itai, S. Seltzer, John Hubbell, Tsutomu Zeniya, Takao Akatsuka, Roberto Cesareo, Antonio Brunetti, Giovanni Gigante

Proceedings Volume 4503, (2002) https://doi.org/10.1117/12.452870

KEYWORDS: X-rays, X-ray imaging, Tomography, X-ray sources, Image intensifiers, Optical filters, Image filtering, Sensors, Monte Carlo methods, Image resolution

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Proceedings Article | 7 January 2002 Paper

Paper

Medical imaging by fluorescent x-ray CT: its preliminary clinical evaluation

Tohoru Takeda, Tsutomu Zeniya, Jin Wu, Quanwen Yu, Thet Lwin, Yoshinori Tsuchiya, Donepudi Rao, Tetsuya Yuasa, Toru Yashiro, F. Avraham Dilmanian, Yuji Itai, Takao Akatsuka

Proceedings Volume 4503, (2002) https://doi.org/10.1117/12.452856

KEYWORDS: X-rays, Iodine, X-ray detectors, X-ray imaging, Spatial resolution, X-ray computed tomography, Cancer, Sensors, Single photon emission computed tomography, Tomography

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Proceedings Article | 19 December 2001 Paper

Paper

Importance of Doppler broadening in Compton scatter imaging techniques

Donepudi Rao, Tohoru Takeda, Yuji Itai, S. Seltzer, John Hubbell, Tsutomu Zeniya, Takao Akatsuka, Roberto Cesareo, Antonio Brunetti, Giovanni Gigante

Proceedings Volume 4508, (2001) https://doi.org/10.1117/12.450783

KEYWORDS: Compton scattering, Scattering, X-rays, Tomography, Imaging systems, Bone, X-ray imaging, Biological research, Chemical species, Doppler tomography

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Proceedings Article | 8 November 2000 Paper

Paper

Optimization of air gap for two-dimensional imaging system using synchrotron radiation

Tsutomu Zeniya, Tohoru Takeda, Quanwen Yu, Kazuyuki Hyodo, Tetsuya Yuasa, Yuji Aiyoshi, Yukio Hiranaka, Yuji Itai, Takao Akatsuka

Proceedings Volume 4146, (2000) https://doi.org/10.1117/12.406668

KEYWORDS: X-rays, Spatial resolution, X-ray imaging, Imaging systems, Monochromators, Mammography, Breast, Sensors, Contamination, Synchrotron radiation

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Proceedings Article | 2 November 2000 Paper

Paper

Development of a multispectral autoradiography using a coded aperture

Daisuke Noto, Tohoru Takeda, Jin Wu, Thet Lwin, Quanwen Yu, Tsutomu Zeniya, Tetsuya Yuasa, Yukio Hiranaka, Yuji Itai, Takao Akatsuka

Proceedings Volume 4113, (2000) https://doi.org/10.1117/12.405842

KEYWORDS: Coded apertures, Imaging systems, Monte Carlo methods, Sensors, Collimators, Spatial resolution, Coded aperture imaging, Point spread functions, X-rays, Biological research

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Proceedings Article | 6 October 1999 Paper

Paper

Two-dimensional aortographic coronary angiography with synchrotron radiation at aortic regurgitation state

Tohoru Takeda, Keiji Umetani, Toshiki Doi, Yuji Itai, Quanwen Yu, Takao Akatsuka

Proceedings Volume 3770, (1999) https://doi.org/10.1117/12.368182

KEYWORDS: Arteries, X-rays, X-ray imaging, Angiography, Synchrotron radiation, Imaging systems, X-ray detectors, Diagnostics, Silicon, Iodine

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Proceedings Article | 6 October 1999 Paper

Paper

Proposal for medical application beamlines of the SPring-8

Chikao Uyama, Kenji Tokumori, Fukai Toyofuku, Hiroshi Sugiyama, Kazuyuki Hyodo, Masami Ando, Katsuyuki Nishimura, Tohoru Takeda, Katsuhito Yamasaki, Masao Matsumoto

Proceedings Volume 3770, (1999) https://doi.org/10.1117/12.368181

KEYWORDS: X-rays, X-ray imaging, Light sources, X-ray computed tomography, Monochromators, Angiography, X-ray detectors, X-ray sources, Biomedical optics, Brain-machine interfaces

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Proceedings Article | 6 October 1999 Paper

Paper

Applications of phase-contrast x-ray imaging to medicine using an x-ray interferometer

Atsushi Momose, Akio Yoneyama, Tohoru Takeda, Yuji Itai, Jinhong Tu, Keiichi Hirano

Proceedings Volume 3770, (1999) https://doi.org/10.1117/12.368186

KEYWORDS: X-rays, Interferometers, X-ray imaging, Tissues, Blood, Phase contrast, Phase shifts, Semiconducting wafers, Spatial resolution, X-ray computed tomography

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Proceedings Article | 22 September 1999 Paper

Paper

Recent observations with phase-contrast x-ray computed tomography

Atsushi Momose, Tohoru Takeda, Yuji Itai, Jinhong Tu, Keiichi Hirano

Proceedings Volume 3772, (1999) https://doi.org/10.1117/12.363720

KEYWORDS: X-rays, Interferometers, X-ray imaging, X-ray computed tomography, Tissues, Semiconducting wafers, Spatial resolution, Liver, Crystals, Blood vessels

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Proceedings Article | 22 September 1999 Paper

Paper

Human thyroid specimen imaging by fluorescent x-ray computed tomography with synchrotron radiation

Tohoru Takeda, Quanwen Yu, Toru Yashiro, Tetsuya Yuasa, Yasuo Hasegawa, Yuji Itai, Takao Akatsuka

Proceedings Volume 3772, (1999) https://doi.org/10.1117/12.363728

KEYWORDS: X-rays, Iodine, X-ray detectors, Sensors, X-ray imaging, X-ray computed tomography, Imaging systems, Synchrotron radiation, Computing systems, Compton scattering

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Proceedings Article | 28 May 1999 Paper

Paper

Observation of human tissue with phase-contrast x-ray computed tomography

Atsushi Momose, Tohoru Takeda, Yuji Itai, Jinhong Tu, Keiichi Hirano

Proceedings Volume 3659, (1999) https://doi.org/10.1117/12.349511

KEYWORDS: X-rays, X-ray imaging, Tissues, Interferometers, Phase shifts, X-ray computed tomography, Kidney, X-ray detectors, Refractive index, Cancer

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SPIE Journal Paper | 1 August 1998

Three-dimensional monochromatic x-ray computed tomography using synchrotron radiation

Tsuneo Saito, Hiroyuki Kudo, Tohoru Takeda, Yuji Itai, Kenji Tokumori, Fukai Toyofuku, Kazuyuki Hyodo, Masami Ando, Katsuyuki Nishimura, Chikao Uyama

OE, Vol. 37, Issue 08, (August 1998) https://doi.org/10.1117/12.10.1117/1.601745

KEYWORDS: X-ray computed tomography, X-rays, Reconstruction algorithms, 3D image processing, X-ray sources, Barium, Synchrotron radiation, Algorithm development, X-ray imaging, Radon transform

Proceedings Article | 24 October 1997 Paper

Paper

Phase-contrast x-ray computed tomography for biological imaging

Atsushi Momose, Tohoru Takeda, Yuji Itai

Proceedings Volume 3149, (1997) https://doi.org/10.1117/12.279352

KEYWORDS: X-rays, Tissues, Interferometers, X-ray computed tomography, Phase shifts, Spatial resolution, Statistical analysis, Blood, X-ray imaging, In vivo imaging

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Proceedings Article | 24 October 1997 Paper

Paper

Fluorescent x-ray computed tomography to visualize specific material distribution

Tohoru Takeda, Tetsuya Yuasa, Atsunori Hoshino, Masahiro Akiba, Akira Uchida, Masahiro Kazama, Kazuyuki Hyodo, F. Avraham Dilmanian, Takao Akatsuka, Yuji Itai

Proceedings Volume 3149, (1997) https://doi.org/10.1117/12.279355

KEYWORDS: X-rays, X-ray detectors, Iodine, Compton scattering, Sensors, X-ray imaging, Absorption, X-ray computed tomography, Collimators, Monte Carlo methods

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Proceedings Article | 11 April 1996 Paper

Paper

Fluorescent x-ray computed tomography with synchrotron radiation using fan collimator

Tohoru Takeda, Masahiro Akiba, Tetsuya Yuasa, Masahiro Kazama, Atsunori Hoshino, Yuuki Watanabe, Kazuyuki Hyodo, F. Avraham Dilmanian, Takao Akatsuka, Yuji Itai

Proceedings Volume 2708, (1996) https://doi.org/10.1117/12.237832

KEYWORDS: X-rays, Monte Carlo methods, Iodine, Sensors, Compton scattering, Collimators, X-ray detectors, X-ray imaging, X-ray computed tomography, Signal attenuation

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Proceedings Article | 11 April 1996 Paper

Paper

Tomographic image reconstruction using x-ray phase information

Atsushi Momose, Tohoru Takeda, Yuji Itai, Keiichi Hirano

Proceedings Volume 2708, (1996) https://doi.org/10.1117/12.237831

KEYWORDS: X-rays, X-ray imaging, X-ray computed tomography, Tissues, Interferometers, Phase shifts, Tomography, Image restoration, Synchrotron x-ray imaging, Mirrors

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Proceedings Article | 22 August 1995 Paper

Paper

Three-dimensional monochromatic x-ray CT

Tsuneo Saito, Hiroyuki Kudo, Tohoru Takeda, Yuji Itai, Kenji Tokumori, Fukai Toyofuku, Kazuyuki Hyodo, Masami Ando, Ktsuyuki Nishimura, Chikao Uyama

Proceedings Volume 2564, (1995) https://doi.org/10.1117/12.217441

KEYWORDS: X-ray computed tomography, 3D image processing, Reconstruction algorithms, X-rays, 3D image reconstruction, X-ray sources, X-ray imaging, Synchrotron radiation, Algorithm development, 3D acquisition

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Proceedings Article | 21 September 1994 Paper

Paper

Identification of coronary arteries from time series of angiogram and its 3D understanding

Akira Uchida, Takao Akatsuka, Tohoru Takeda, Yasutaka Tamura

Proceedings Volume 2298, (1994) https://doi.org/10.1117/12.186583

KEYWORDS: Arteries, Angiography, Blood vessels, Image segmentation, 3D displays, 3D modeling, Algorithm development, 3D image processing, Tissues, CRTs

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Showing 5 of 22 publications

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