Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Ken Yusa"'
Autor:
MUTSUMI TASHIRO, YUKARI YOSHIDA, TAKAHIRO OIKE, MASAO NAKAO, KEN YUSA, YUKA HIROTA, TATSUYA OHNO
Publikováno v:
Anticancer Research. 42:2469-2477
This study aimed to establish a setup for ultra-high-dose-rate (FLASH) carbon-ion irradiation, and to conduct the first human cell experiments using FLASH carbon ions.A system for FLASH carbon-ion irradiation (1-3 Gy at 13 or 50 keV/μm) was develope
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9cd200903b9b92be19d62c48f6f4da45
https://doi.org/10.21873/anticanres.15725
https://doi.org/10.21873/anticanres.15725
Autor:
Yoshiki Kubota, Hidemasa Kawamura, Makoto Sakai, Ryou Tsumuraya, Mutsumi Tashiro, Ken Yusa, Nobuteru Kubo, Hiro Sato, Masahiro Kawahara, Hiroyuki Katoh, Tatsuaki Kanai, Tatsuya Ohno, Takashi Nakano
Publikováno v:
PLoS ONE, Vol 11, Iss 4, p e0153894 (2016)
BACKGROUND AND PURPOSE:Carbon-ion radiotherapy of prostate cancer is challenging in patients with metal implants in one or both hips. Problems can be circumvented by using fields at oblique angles. To evaluate the influence of setup and range uncerta
Externí odkaz:
https://doaj.org/article/8a31f4b6a77b4070b003b72846e5b655
Autor:
Tadashi Kamada, Manabu Mizota, Nobuyuki Kanematsu, Tatsuaki Kanai, Shinichi Minohara, Hideyuki Mizuno, Toshihiro Yanou, Shunsuke Yonai, Akifumi Fukumura, Ken Yusa, Masaki Suga, Toshiyuki Shirai
Publikováno v:
Journal of Applied Clinical Medical Physics
Purpose The QA team of the Japan carbon‐ion radiation oncology study group (J‐CROS) was organized in 2015 to enhance confidence in the accuracy of clinical dosimetry and ensure that the facility QA procedures are adequate. The team conducted onsi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4beaaa6a56f9450d0db18be2b221042b
https://doi.org/10.1002/acm2.12465
https://doi.org/10.1002/acm2.12465
Publikováno v:
Medical Physics. 42:5188-5194
Purpose: A conventional broad beam method is applied to carbon ion radiotherapy at Gunma University Heavy Ion Medical Center. According to this method, accelerated carbon ions are scattered by various beam line devices to form 3D dose distribution. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d258952b53b7233842cf699b7b50dcb9
https://doi.org/10.1118/1.4928145
https://doi.org/10.1118/1.4928145
Autor:
Tatsuaki Kanai, Masahiro Kawahara, Ken Yusa, Hiroyuki Katoh, Ryou Tsumuraya, Nobuteru Kubo, Takashi Nakano, Hidemasa Kawamura, Tatsuya Ohno, Yoshiki Kubota, Makoto Sakai, Mutsumi Tashiro, Hiro Sato
Publikováno v:
PLoS ONE, Vol 11, Iss 4, p e0153894 (2016)
PLoS ONE
PLoS ONE
Background and Purpose Carbon-ion radiotherapy of prostate cancer is challenging in patients with metal implants in one or both hips. Problems can be circumvented by using fields at oblique angles. To evaluate the influence of setup and range uncerta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a8e532c55c33b8be9682e12760de452
http://europepmc.org/articles/PMC4838308?pdf=render
http://europepmc.org/articles/PMC4838308?pdf=render
Autor:
Hideyuki Sakurai, Tatsuaki Kanai, Shinichi Minohara, Ken Yusa, Mutsumi Tashiro, Takashi Nakano
Publikováno v:
Medical Physics. 33:1747-1757
We present a new quantification technique for three-dimensional (3D) lung motion by means of tracking the anatomical features inside the lung using a set of sequential 3D-CT images (a 4D-CT image). The method is based on the conservation of topology,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0519900c3019793ab2db7b5c145122a4
https://doi.org/10.1118/1.2198167
https://doi.org/10.1118/1.2198167
Autor:
Masanobu Ozaki, M. Natsume, H. Shibuya, Tatsumi Koi, Taku Nakamura, Koichi Kodama, Takashi Sasaki, S. Kameoka, Masataka Komori, S. Ogawa, Nobuyuki Kanematsu, Satoru Takahashi, K. Murakami, Naotaka Naganawa, Shinji Sato, M. Shibasaki, T. Fukuda, Mitsutaka Kanazawa, Ken Yusa, C. Fukushima, K. Amako, T. Toshito, Shigeki Aoki, Kimio Niwa, Makoto Asai, T. Ban
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 556:482-489
We performed an experimental study of charge identification of heavy ions from helium to carbon having energy of about 290 MeV/u using an emulsion chamber. Emulsion was desensitized by means of forced fading (refreshing) to expand a dynamic range of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bee61974ab37966435e78a8591b3d723
https://doi.org/10.1016/j.nima.2005.11.047
https://doi.org/10.1016/j.nima.2005.11.047
Autor:
Hiroyoshi Oka, Ken Yusa, Hiroshi Asakura, Yasuyuki Futami, Tatsuaki Kanai, Masahiro Endo, Nobuyuki Kanematsu
Publikováno v:
Medical Physics. 29:2823-2829
We have upgraded a heavy-ion radiotherapy treatment-planning system to adapt for the layer-stacking irradiation method, which is to conform a variable spread-out Bragg peak to a target volume by means of dynamic control of the conventional beam-modif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2e84440deecc0b1259783d2c426a566
https://doi.org/10.1118/1.1521938
https://doi.org/10.1118/1.1521938
Autor:
Takeshi Ebara, Satoshi Abe, Ken Yusa, Satoru Yamada, Ryosuke Okada, Mutsumi Tashiro, Tatsuya Ohno, Takashi Nakano, Hidemasa Kawamura, Tatsuaki Kanai, Takayoshi Ishii, Yoshiaki Ohashi, Keisuke Arai, Hirofumi Shimada, Yuji Kurosawa, Jun-ichi Koya
Publikováno v:
Radiological Physics and Technology
We propose a strategy of individualized image acquisitions and treatment planning for respiratory-gated carbon-ion therapy. We implemented it in clinical treatments for diseases of mobile organs such as lung cancers at the Gunma University Heavy Ion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1be57fe2493327ef0480d3f7c0bd0f15
https://pubmed.ncbi.nlm.nih.gov/23568337
https://pubmed.ncbi.nlm.nih.gov/23568337
Design of ridge filters for spread-out Bragg peaks with Monte Carlo simulation in carbon ion therapy
Autor:
Hirofumi Shimada, Mutsumi Tashiro, Satoru Yamada, Tatsuya Ohno, Takashi Nakano, Ken Yusa, M. Sakama, Tatsuaki Kanai, Yuki Kase, Kota Torikai
Publikováno v:
Physics in medicine and biology. 57(20)
Spread-out Bragg peaks made by ridge filters or wheel range modulators are used in charged particle therapy with passive methods to achieve uniform biological responses in irradiated tumors. Following the biological responses needed to design the rid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5e5695e8087b33e89e6d4268aed669b
https://pubmed.ncbi.nlm.nih.gov/23022653
https://pubmed.ncbi.nlm.nih.gov/23022653