Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Daisuke Fujiyama"'
Autor:
Shie Nishioka, Hiroyuki Okamoto, Takahito Chiba, Tatsuya Sakasai, Kae Okuma, Junichi Kuwahara, Daisuke Fujiyama, Satoshi Nakamura, Kotaro Iijima, Hiroki Nakayama, Mihiro Takemori, Yuuki Tsunoda, Keita Kaga, Hiroshi Igaki
Publikováno v:
Physics and Imaging in Radiation Oncology, Vol 23, Iss , Pp 1-7 (2022)
Background and purpose: Online magnetic resonance-guided adaptive radiotherapy (MRgART) is a new technology of radiotherapy and requires a new quality control program in many aspects. This study aimed to gain a deeper understanding of risks in online
Externí odkaz:
https://doaj.org/article/78e48d302376412d8beb2be86148cde9
Autor:
Hiroki Nakayama, Hiroyuki Okamoto, Satoshi Nakamura, Kotaro Iijima, Takahito Chiba, Mihiro Takemori, Tetsu Nakaichi, Shohei Mikasa, Kyohei Fujii, Tatsuya Sakasai, Junichi Kuwahara, Yuki Miura, Daisuke Fujiyama, Yuki Tsunoda, Takuma Hanzawa, Hiroshi Igaki, Weishan Chang
Publikováno v:
Journal of Applied Clinical Medical Physics. 24
Autor:
Yuki Tsunoda, Shoichi Katsuta, Takahito Chiba, Hiroki Nakayama, Yuki Miura, Shie Nishioka, Satoshi Nakamura, Tatsuya Sakasai, Keita Kaga, Daisuke Fujiyama, Hiroyuki Okamoto, Jun Itami, Hiroshi Igaki, Mihiro Takemori, Kotaro Iijima
Publikováno v:
Medical Physics. 48:7541-7551
PURPOSE In this study, we report on our proposed phantom based on the new end-to-end (E2E) methodology and its results. In addition, we verify whether the proposed phantom can replace conventional phantoms. METHODS The hexagonal-shaped newly designed
Autor:
Satoshi Nakamura, Jun Itami, Shie Nishioka, Kotaro Iijima, Teiji Nishio, N Tohyama, Hideyuki Mizuno, Mitsuhiro Nakamura, Yasumasa Nishimura, Akihisa Wakita, Daisuke Fujiyama, Hiroyuki Okamoto, Toshiyuki Minemura
Publikováno v:
Physica Medica. 48:119-126
We developed an efficient postal audit system to independently assess the delivered dose using radiophotoluminescent glass dosimeters (RPLDs) and the positional differences of fields using EBT3 film at the axial plane for intensity-modulated radiothe
Autor:
Hiroki Nakayama, Yuki Tsunoda, Hiroshi Igaki, Shouichi Katsuta, Satoshi Nakamura, Yuko Nakayama, Shie Nishioka, Yuki Miura, Chen Su, Daisuke Fujiyama, Mihiro Takemori, Takahito Chiba, Junichi Kuwahara, Jun Itami, Kotaro Iijima, Keita Kaga, Hiroyuki Okamoto, Tatsuya Sakasai, Koji Inaba
Publikováno v:
Br J Radiol
Objective: This study aimed to assess the dosimetric effect of intestinal gas of stereotactic magnetic resonance (MR)-guided adaptive radiation therapy (SMART) on target and critical organs for pancreatic cancer without online electron density correc
Publikováno v:
European Archives of Oto-Rhino-Laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery. 269(1):57-60
The objective of this study was to investigate the possibility to omit the time-consuming monocular vision measurement in the subjective visual vertical (SVV) test by demonstrating that there is no difference in the results between binocular and mono
Autor:
Haruo Takahashi, Akiko Baba, Daisuke Fujiyama, Yuzuru Saino, Kenji Takasaki, Hidetaka Kumagami
Publikováno v:
Acta oto-laryngologica. Supplementum. 129(562):46-49
CONCLUSION: The subjective visual vertical (SVV) test can detect abnormality of the otolithic organs and the graviceptive pathways present in a considerable number of patients having dizziness but presenting no abnormal findings in conventional vesti
Autor:
Haruo Takahashi, Yuzuru Sainoo, Daisuke Fujiyama, Kenji Takasaki, Hidetaka Kumagami, Koichiro Shigeno, Ryota Oku, Akiko Baba
Publikováno v:
Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology. 30(2):206-209
OBJECTIVES: To investigate whether or not and how often there is otolith dysfunction in an acute attack of Meniere's disease. PATIENTS: Twenty-two definite cases of unilateral Meniere's disease diagnosed in accordance with the 1995 criteria of the Am
Publikováno v:
Acta Oto-Laryngologica. 129:53-56
A 58-year-old Japanese man suddenly suffered from vertigo. On physical examination, left-beating horizontal torsional spontaneous nystagmus was observed; the direction did not change with gaze. Other neurotological examinations revealed findings with
Autor:
Tomomi Fukuda, Akiko Baba, Hidetaka Kumagami, Daisuke Fujiyama, Haruo Takahashi, Yuzuru Sainoo, Kenji Takasaki, Mariko Terakado
Publikováno v:
Audiology and Neurotology. 14:190-197
The immunohistochemical expression pattern and the physiological role of transient receptor potential vanilloid (TRPV) 4 in the endolymphatic sac were investigated. TRPV4 was expressed predominantly in the apical membrane of mitochondria-rich cells,