Dr. Masahiro Endo Profile

Dr. Masahiro Endo

Researcher at National Institute of Radiological Sciences

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Author

Publications (18)

Proceedings Article | 17 March 2006 Paper

Explanation of the mechanism by which CAD assistance improves diagnostic performance when reading CT images

Toru Matsumoto, Shinichi Wada, Shinji Yamamoto, Kohei Murao, Akira Furukawa, Masahiro Endo, Mitsuomi Matsumoto, Shusuke Sone

Proceedings Volume 6146, 614619 (2006) https://doi.org/10.1117/12.652928

KEYWORDS: Computer aided diagnosis and therapy, Diagnostics, Computer aided design, Computed tomography, CAD systems, Databases, Lung cancer, Binary data, Medical imaging, Chest

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Proceedings Article | 20 April 2005 Paper

Respiratory-gated segment reconstruction for radiation treatment planning using 256-slice CT-scanner during free breathing

Shinichiro Mori, Masahiro Endo, Ryosuke Kohno, Shinichi Minohara, Kazutoshi Kohno, Hiroshi Asakura, Hideaki Fujiwara, Kenya Murase

Proceedings Volume 5745, (2005) https://doi.org/10.1117/12.596632

KEYWORDS: Radiotherapy, Computed tomography, Temporal resolution, Reconstruction algorithms, Image quality, Signal to noise ratio, Remote sensing, Algorithm development, Sensing systems, Liver

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Proceedings Article | 6 April 2005 Paper

An assessment of the potential for interpretation of CT images by radiological technologists

Toru Matsumoto, Mitsuomi Matsumoto, Keiichi Nagao, Ryutaro Kakinuma, Shusuke Sone, Akira Furukawa, Yuichi Fujino, Shinichi Wada, Shinji Yamamoto, Kohei Murao, Masahiro Endo

Proceedings Volume 5749, (2005) https://doi.org/10.1117/12.596708

KEYWORDS: Computed tomography, CAD systems, Diagnostics, X-ray computed tomography, Lung cancer, Computer aided diagnosis and therapy, Databases, Computing systems, Computer aided design, Binary data

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Proceedings Article | 6 May 2004 Paper

Dose profile measurement of a four-dimensional CT (4D-CT) including scattered radiation

Masahiro Endo, Schin'ichiro Mori, Takanori Tsunoo, Kanae Nishizawa, Takahiko Aoyama

Proceedings Volume 5368, (2004) https://doi.org/10.1117/12.535207

KEYWORDS: Sensors, 4D CT imaging, Head, Scatter measurement, Photodiodes, Ionization, X-ray computed tomography, PIN photodiodes, Polymethylmethacrylate, Scintillators

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Proceedings Article | 4 May 2004 Paper

Methods of evaluating the effectiveness of double-checking in interpreting mass screening images

Tohru Matsumoto, Akira Furukawa, Kikuo Machida, Norinari Honda, Tomoho Maeda, Mitsuomi Matsumoto, Yuichi Fujino, Shinichi Wada, Shusuke Sone, Kiminori Suzuki, Masahiro Endo

Proceedings Volume 5372, (2004) https://doi.org/10.1117/12.536304

KEYWORDS: CAD systems, Solid modeling, Computed tomography, Lung cancer, Computer aided diagnosis and therapy, Diagnostics, X-ray computed tomography, Cancer, X-rays, Systems modeling

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Proceedings Article | 5 June 2003 Paper

Basic performance evaluation of the first model of a four-dimensional CT scanner

Shinichiro Mori, Masahiro Endo, Takanori Tsunoo, Susumu Kandatsu, Shuzi Tanada, Hiroshi Aradate, Yasuo Saito, Hiroaki Miyazaki, Kazumasa Sato, Satoshi Matsushita, Masahiro Kusakabe

Proceedings Volume 5030, (2003) https://doi.org/10.1117/12.480219

KEYWORDS: 4D CT imaging, Computed tomography, Spatial resolution, Distortion, Prototyping, 3D image processing, Optical spheres, 3D image reconstruction, Image quality, Data modeling

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Proceedings Article | 9 May 2002 Paper

Denoising of cone beam CT image using wavelet transform

Yi-Qiang Yang, Nobuyuki Nakamori, Yasuo Yoshida, Takanori Tsunoo, Masahiro Endo, Kazumasa Sato

Proceedings Volume 4684, (2002) https://doi.org/10.1117/12.467064

KEYWORDS: X-ray computed tomography, Wavelet transforms, Wavelets, X-rays, Image processing, Signal to noise ratio, Denoising, Image quality, X-ray imaging, Photons

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Proceedings Article | 3 May 2002 Paper

Monte Carlo analysis of relation between patient dose and noise characteristic of a flat-panel detector for cone-beam CT

Nobuyuki Nakamori, Yi-Qiang Yang, Yasuo Yoshida, Takanori Tsunoo, Masahiro Endo, Kazumasa Sato

Proceedings Volume 4682, (2002) https://doi.org/10.1117/12.465620

KEYWORDS: Modulation transfer functions, Sensors, Signal to noise ratio, Image processing, Monte Carlo methods, Computed tomography, Image quality, X-rays, Imaging systems, X-ray computed tomography

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SPIE Journal Paper | 1 July 2001 Open Access

Design of synchrotron light source and its beamline dedicated to dual-energy x-ray computed tomography

Masami Torikoshi, Takanori Tsunoo, Masahiro Endo, Koji Noda, Masayuki Kumada, Satoru Yamada, Fuminori Soga, Kazuyuki Hyodo

JBO, Vol. 6, Issue 03, (July 2001) https://doi.org/10.1117/12.10.1117/1.1383062

KEYWORDS: X-rays, Light sources, X-ray computed tomography, Synchrotrons, Signal attenuation, Optical filters, Sensors, Crystals, Diagnostics, Synchrotron radiation

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Proceedings Article | 28 June 2001 Paper

Performance of cone-beam CT using a flat-panel imager

Masahiro Endo, Takanori Tsunoo, Kazumasa Satoh, Satoshi Matsusita, Masahiro Kusakabe, Yasushi Fukuda

Proceedings Volume 4320, (2001) https://doi.org/10.1117/12.430960

KEYWORDS: Collimators, Imaging systems, X-ray computed tomography, Sensors, X-rays, Spatial resolution, Distortion, X-ray detectors, Calibration, Scintillators

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Proceedings Article | 25 April 2000 Paper

Effect of scatter radiation on image noise in cone-beam CT

Masahiro Endo, Takanori Tsunoo, Nobuyuki Nakamori

Proceedings Volume 3977, (2000) https://doi.org/10.1117/12.384527

KEYWORDS: X-rays, Sensors, X-ray computed tomography, X-ray imaging, Radiation effects, Collimators, Photons, Image quality, X-ray detectors, Imaging systems

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Proceedings Article | 6 October 1999 Paper

Conceptual design of a synchrotron light source used for medical diagnoses at NIRS

Masami Torikoshi, Masahiro Endo, Koji Noda, Masayuki Kumada, Satoru Yamada, Kiyomitsu Kawachi, Kazuyuki Hyodo

Proceedings Volume 3770, (1999) https://doi.org/10.1117/12.368184

KEYWORDS: X-rays, X-ray computed tomography, Electrons, Light sources, Synchrotrons, Crystals, Signal attenuation, Diagnostics, Near infrared spectroscopy, Ions

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Proceedings Article | 24 June 1998 Paper

Image restoration of cone-beam CT images using wavelet transform

Nobuyuki Nakamori, Kazuya Tsukamoto, Takanori Tsunoo, Yasuo Yoshida, Masahiro Endo, Masahiro Kusakabe

Proceedings Volume 3338, (1998) https://doi.org/10.1117/12.310856

KEYWORDS: Computed tomography, Image filtering, CT reconstruction, Image quality, Wavelets, 3D image reconstruction, Image processing, Wavelet transforms, Image restoration, Optimal filtering

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Proceedings Article | 11 April 1996 Paper

Study on reconstructed image of 3D cone-beam CT scanner

Nobuyuki Nakamori, Tooru Sudou, Hitoshi Kanamori, Masahiro Endo, Masahiro Kusakabe

Proceedings Volume 2708, (1996) https://doi.org/10.1117/12.237833

KEYWORDS: 3D image reconstruction, Sensors, Photons, 3D image processing, CT reconstruction, Optical filtering, 3D scanning, Monte Carlo methods, X-ray computed tomography, Image filtering

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Proceedings Article | 8 May 1995 Paper

Development of a 3D CT scanner using cone beam

Masahiro Endo, Nozomu Kamagata, Kazumasa Sato, Yuichi Hattori, Shigeo Kobayashi, Shinichi Mizuno, Masao Jimbo, Masahiro Kusakabe

Proceedings Volume 2432, (1995) https://doi.org/10.1117/12.208347

KEYWORDS: 3D image processing, X-rays, 3D scanning, Sensors, Data acquisition, 3D acquisition, X-ray computed tomography, 3D image enhancement, X-ray imaging, X-ray detectors

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Proceedings Article | 8 May 1995 Paper

High-luminance fluorescent screen with interference filter

Noritaka Satoh, Masahiro Kusakabe, Katsutoshi Ohno, Nozomu Kamagata, Masahiro Endo

Proceedings Volume 2432, (1995) https://doi.org/10.1117/12.208366

KEYWORDS: Interference filters, Spatial resolution, X-rays, CCD cameras, Coating, Imaging systems, Charge-coupled devices, X-ray imaging, CCD image sensors, Optical filters

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Proceedings Article | 27 April 1995 Paper

Parallel processing system for high-speed volume reconstruction of a 3D x-ray computed tomography (CT)

Tsutomu Okazaki, Kazumasa Sato, Masahiro Kusakabe, Masahiro Endo, Yasushi Fukuda, Toru Sasaki, Ryohei Iida

Proceedings Volume 2431, (1995) https://doi.org/10.1117/12.207640

KEYWORDS: Image processing, 3D image processing, 3D image reconstruction, Digital signal processing, X-ray computed tomography, 3D acquisition, Parallel processing, Parallel computing, Data processing, X-rays

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Proceedings Article | 1 May 1994 Paper

Effects of scattered x-rays on cone-beam CT images

Kohji Inoue, Nobuyuki Nakamori, Hitoshi Kanamori, Masahiro Endo

Proceedings Volume 2163, (1994) https://doi.org/10.1117/12.174254

KEYWORDS: Sensors, X-ray computed tomography, Photons, X-rays, Computed tomography, Scanners, Scattering, X-ray imaging, Spherical lenses, Monte Carlo methods

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Showing 5 of 18 publications

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