Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Tomohiko Matsuyama"'
Autor:
Hideya Yamazaki, Gen Suzuki, Norihiro Aibe, Hiroya Shiomi, Ryoong-jin Oh, Ken Yoshida, Satoaki Nakamura, Koji Konishi, Tomohiko Matsuyama, Mikio Ogita
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract Unresectable, isolated lymph node recurrence after radiotherapy is rare but a candidate for re-irradiation. However, severe toxicity is anticipated. Therefore, this study aimed to explore the efficacy and toxicity of re-irradiation in isolat
Externí odkaz:
https://doaj.org/article/6dee55ba8f1d41919e0ca395b4c8bfe2
Autor:
Ryo Toya, Tomohiko Matsuyama, Tetsuo Saito, Yoshiyuki Fukugawa, Takahiro Watakabe, Shinya Shiraishi, Daizo Murakami, Yorihisa Orita, Toshinori Hirai, Natsuo Oya
Publikováno v:
Radiation Oncology, Vol 18, Iss 1, Pp 1-8 (2023)
Abstract Background We evaluated the prevalence and identified the risk factors for retropharyngeal and retro-styloid lymph node metastasis (LNM) in patients with hypopharyngeal carcinoma (HPC). This was achieved using a combination of magnetic reson
Externí odkaz:
https://doaj.org/article/bdc1bd00974e4cdfad7290de1062ebeb
Autor:
Ryo Toya, Tetsuo Saito, Yoshiyuki Fukugawa, Tomohiko Matsuyama, Tadashi Matsumoto, Shinya Shiraishi, Daizo Murakami, Yorihisa Orita, Toshinori Hirai, Natsuo Oya
Publikováno v:
Annals of Medicine, Vol 54, Iss 1, Pp 436-441 (2022)
Background Supporting data defining the selection criteria of level VIIb for inclusion in the target volume in radiotherapy (RT) planning are insufficient. We evaluated the prevalence of level VIIb retro-styloid lymph node metastasis (RSLNM) and asso
Externí odkaz:
https://doaj.org/article/d3fad1eeafdb4d0ea49d77b0e4db261e
Autor:
Toshimichi Nakano, Hidefumi Aoyama, Shunsuke Onodera, Hiroshi Igaki, Yasuo Matsumoto, Ayae Kanemoto, Shigetoshi Shimamoto, Masayuki Matsuo, Hidekazu Tanaka, Natsuo Oya, Tomohiko Matsuyama, Atsushi Ohta, Katsuya Maruyama, Takahiro Tanaka, Nobutaka Kitamura, Kohei Akazawa, Katsuya Maebayashi
Publikováno v:
Clinical and Translational Radiation Oncology, Vol 37, Iss , Pp 116-129 (2022)
Background and purpose: To minimize cognitive decline without increasing brain tumor recurrence (BTR) by reduced-dose whole-brain radiotherapy (RD-WBRT) (25 Gy, 10 fractions) + stereotactic radiosurgery (SRS) in patients with ≤ 4 brain metastases.
Externí odkaz:
https://doaj.org/article/bd2d474366a6411c9c64e132744333e1
Autor:
Yoshiyuki Fukugawa, Ryo Toya, Tomohiko Matsuyama, Takahiro Watakabe, Yoshinobu Shimohigashi, Yudai Kai, Tadashi Matsumoto, Natsuo Oya
Publikováno v:
BMC Medical Imaging, Vol 22, Iss 1, Pp 1-5 (2022)
Abstract Background Patients with tonsillar cancer (TC) often have dental fillings that can significantly degrade the quality of computed tomography (CT) simulator images due to metal artifacts. We evaluated whether the use of the metal artifact redu
Externí odkaz:
https://doaj.org/article/9098755dcbeb48ed99746965170de470
Autor:
Tomohiko Matsuyama, Yoshiyuki Fukugawa, Junichiro Kuroda, Ryo Toya, Takahiro Watakabe, Tadashi Matsumoto, Natsuo Oya
Publikováno v:
Radiation Oncology, Vol 17, Iss 1, Pp 1-9 (2022)
Abstract Purpose To analyze the efficacy of adaptive radiotherapy (ART) for glioblastoma. Methods Sixty-one glioblastoma patients who received ART were prospectively evaluated. The initial clinical target volume (CTVinitial) was represented by T2 hyp
Externí odkaz:
https://doaj.org/article/75c98a3f8c5e4e89a08a313e03cdf577
Autor:
Kohsei Yamaguchi, Tetsuo Saito, Ryo Toya, Etsushi Tomitaka, Tomohiko Matsuyama, Yoshiyuki Fukugawa, Takahiro Watakabe, Hirohito Otsuka, Natsuo Oya
Publikováno v:
Radiation Oncology, Vol 16, Iss 1, Pp 1-7 (2021)
Abstract Background There is limited evidence concerning radiotherapy for painful lymph node metastases (PLM). We evaluated the effectiveness of radiotherapy for PLM using the International Consensus Endpoint in a subgroup analysis of a prospective o
Externí odkaz:
https://doaj.org/article/b6aaddaf84b942a9b5c62a58c39e1381
Autor:
Ryo Toya, Tetsuo Saito, Kohsei Yamaguchi, Tomohiko Matsuyama, Takahiro Watakabe, Tadashi Matsumoto, Ryoji Yoshida, Akiyuki Hirosue, Daizo Murakami, Yorihisa Orita, Hideki Nakayama, Natsuo Oya
Publikováno v:
Radiation Oncology, Vol 15, Iss 1, Pp 1-8 (2020)
Abstract Background To review a single institutional experience of the Radiation Therapy Oncology Group (RTOG) 8502 “QUAD shot” regimen using volumetric modulated arc radiotherapy (VMAT) for incurable head and neck cancer (HNC). Methods Thirty-fo
Externí odkaz:
https://doaj.org/article/d13d113471dc46608946041d3555ddc9
Autor:
Tetsuo Saito, Etsushi Tomitaka, Ryo Toya, Tomohiko Matsuyama, Satoshi Ninomura, Takahiro Watakabe, Natsuo Oya
Publikováno v:
Clinical and Translational Radiation Oncology, Vol 12, Iss , Pp 34-39 (2018)
Background and purpose: We previously demonstrated that patients with a tumor-related neuropathic pain component were more likely to experience a pain response after radiotherapy (RT) than those without. It is unknown whether the presence of a neurop
Externí odkaz:
https://doaj.org/article/be0d08c0b5b940b08f794e6559a85189
Autor:
Ryo Toya, Tetsuo Saito, Yudai Kai, Shinya Shiraishi, Tomohiko Matsuyama, Takahiro Watakabe, Fumi Sakamoto, Noriko Tsuda, Yoshinobu Shimohigashi, Yasuyuki Yamashita, Natsuo Oya
Publikováno v:
Dose-Response, Vol 17 (2019)
Purpose: To evaluate the impact of 99m Tc-labeled diethylene triamine pentaacetate-galactosyl human serum albumin ( 99m Tc-GSA) single-photon emission computed tomography (SPECT) image-guided inverse planning on the dose–function histogram (DFH) pa
Externí odkaz:
https://doaj.org/article/4f3d8dc45223495c859586fea62b11c4