Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Hiroyuki Kosaka"'
Autor:
Yusuke Sakai, Hajime Monzen, Yoshiki Takei, Hiroyuki Kosaka, Kenji Nakamura, Yuya Yanagi, Kazuki Wakabayashi, Makoto Hosono, Yasumasa Nishimura
Publikováno v:
Journal of Medical Physics, Vol 48, Iss 2, Pp 189-194 (2023)
Aims: We investigated imaging dose and noise under clinical scan conditions at multiple institutions using a simple and unified method, and demonstrated the need for diagnostic reference levels in image-guided radiotherapy (IGRT). Materials and Metho
Externí odkaz:
https://doaj.org/article/1cfb65ff90e245619acfbdb689d80203
Publikováno v:
Earth, Planets and Space, Vol 69, Iss 1, Pp 1-12 (2017)
Abstract As observational evidence of 3-D microtremor horizontal-to-vertical spectral ratios (MHVRs), previous studies have shown that a significant directional dependency is observed in and around Uji campus, Kyoto University, Japan. This directiona
Externí odkaz:
https://doaj.org/article/8f5c9ce1846947b5a41d32fcb2c63d2c
Publikováno v:
Radiation Protection Dosimetry. 199:366-372
This study aims to measure the shielding effect of a novel tungsten rubber sheet (TRS) on the exposure of male gonads to ionizing radiation during upper abdominal and abdominal plus pelvic computed tomography (CT) examinations. The air kerma at the g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01884a0ea0cbad2e2770d423af7ffa9c
https://doi.org/10.1093/rpd/ncac295
https://doi.org/10.1093/rpd/ncac295
Autor:
Katsuya Okuhata, Mitsugu Fujita, Kenji Nakamura, Yuya Yanagi, Yusuke Sakai, Kazuki Kubo, Hiroyuki Kosaka, Hajime Monzen
Publikováno v:
Cureus.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82e27146c3f0923937d61ec4ddb53353
https://doi.org/10.7759/cureus.34287
https://doi.org/10.7759/cureus.34287
Autor:
Kazuo Yachiune, Hiroyuki Kosaka, Masahito Kobayashi, Junya Maruo, Shinsuke Inai, Yukitaka Ohta, Takushi Ishida
Publikováno v:
AIJ Journal of Technology and Design. 27:632-637
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7916c50b975c329cc199d310728f3da
https://doi.org/10.3130/aijt.27.632
https://doi.org/10.3130/aijt.27.632
Autor:
Kenji Nakamura, Hajime Monzen, Kazuki Kubo, Hiroyuki Kosaka, Takaaki Ito, Yusuke Sakai, Yuya Yanagi, Yasumasa Nishimura
Publikováno v:
Physics in Medicine & Biology. 68:105007
Objective. The purpose of this study was to develop a new bolus (HM bolus), with tissue equivalence, transparency, reusability, and free shaping at approximately 40 °C for excellent adhesion, and to evaluate the feasibility of clinically using this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::234a1c57cfa8841fff06e695d6700959
https://doi.org/10.1088/1361-6560/acc7e0
https://doi.org/10.1088/1361-6560/acc7e0
Autor:
Yujiro Wada, Ryuichi Shibasaki, Hiroyuki Kosaka, Daisuke Watanabe, Hirohito Ito, Kenmei Tsubota, Taro Aratani, Taku Izumiyama, Ryuji Iwasa
Publikováno v:
Journal of the Japan Society of Naval Architects and Ocean Engineers. 34:123-138
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::065d204e3e8c29bd7ca4eb8145b654c1
https://doi.org/10.2534/jjasnaoe.34.123
https://doi.org/10.2534/jjasnaoe.34.123
Autor:
Takaaki Ito, Hajime Monzen, Kazuki Kubo, Hiroyuki Kosaka, Yuya Yanagi, Yusuke Sakai, Masahiro Inada, Hiroshi Doi, Yasumasa Nishimura
Publikováno v:
Reports of Practical Oncology & Radiotherapy; 2023, Vol. 28 Issue 3, p399-406, 8p
Autor:
Shota Hattori, Yuki Kono, Morikazu Amano, Hajime Monzen, Mikoto Tamura, Hiroyuki Kosaka, Yasumasa Nishimura
Publikováno v:
European journal of radiology. 124
Purpose We investigated whether a tungsten functional paper (TFP) shield and/or organ-based tube current modulation (TCM) can reduce the dose to the eye lens. Materials and methods All scans were performed using our routine head examination protocol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8b4b26875455e6abd63d30f0cde1ce5
https://pubmed.ncbi.nlm.nih.gov/31945674
https://pubmed.ncbi.nlm.nih.gov/31945674
Autor:
Yuki Kono, Koji Yamada, Katsuhiro Ichikawa, Hiroyuki Kosaka, Hiroki Kawashima, Kazunari Ishii, Shota Watanabe
Publikováno v:
Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB). 76
Purpose To compare computed tomography (CT) image properties between a vendor-independent image-based noise reduction technique, Image-space Noise Reduction (iNoir) and a hybrid-type iterative reconstruction technique, Adaptive Statistical Iterative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c118dee74b96cd799ae39449f277c119
https://pubmed.ncbi.nlm.nih.gov/32645588
https://pubmed.ncbi.nlm.nih.gov/32645588