Výsledky vyhledávání - "Kuniyasu Nakashima"

Analysis of modulation factor to shorten the delivery time in helical tomotherapy

Autor: Tohru Iwata, Takeshi Kodaira, Koji Sasaki, Kuniyasu Nakashima, Hiroyuki Tachibana, Natsuo Tomita, Hidetoshi Shimizu, Takashi Kubota, Manabu Yoshimoto, Kazushi Yokoi, Chiyoko Makita

Publikováno v: Journal of Applied Clinical Medical Physics

A low modulation factor (MF) maintaining a good dose distribution contributes to the shortening of the delivery time and efficiency of the treatment plan in helical tomotherapy. The purpose of this study was to reduce the delivery time using initial

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fad6d2b1f63f166b201e5f036b14805d
https://doi.org/10.1002/acm2.12075

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Rotational output and beam quality evaluations for helical tomotherapy with use of a third-party quality assurance tool

Autor: Koji Sasaki, Hidetoshi Shimizu, Takashi Kubota, Minoru Kawai, Manabu Yoshimoto, Hikaru Osaki, Takeshi Kodaira, Masashi Nakayama, Kuniyasu Nakashima, Manabu Iwata

Publikováno v: Radiological Physics and Technology. 9:53-59

Our aim was to determine whether a third-party quality assurance (QA) tool was suitable for the measurement of rotational output and beam quality in place of on-board detector signals. A Rotational Therapy Phantom 507 (507 Phantom) was used as a QA t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6afa63088c36552393fb554a0507fba
https://doi.org/10.1007/s12194-015-0333-2

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Establishment of the Commissioning Procedure for Modifying the Beam Model of Helical Tomotherapy

Autor: Manabu Iwata, Tadashi Nakabayashi, Hidetoshi Shimizu, Takashi Kubota, Hiroshi Imamura, Kentaro Sugi, Koji Sasaki, Takeshi Kodaira, Kuniyasu Nakashima, Kazushi Yokoi

Publikováno v: Nihon Hoshasen Gijutsu Gakkai zasshi. 72(7)

Although much evidence about the helical tomotherapy system are available, there is not a document about the procedure of quality assurance (QA) for changing the beam model. This study establishes the commissioning procedure for modifying the beam mo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c9cc79731278579ac5c7a1b33c8fa79
https://pubmed.ncbi.nlm.nih.gov/27440704

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