Zobrazeno 1 - 10
of 187
pro vyhledávání: '"Natsuo Oya"'
Autor:
Takayuki Sakurai, Tetsuo Saito, Kohsei Yamaguchi, Shigeyuki Takamatsu, Satoshi Kobayashi, Naoki Nakamura, Natsuo Oya
Publikováno v:
Radiation Oncology, Vol 19, Iss 1, Pp 1-7 (2024)
Abstract Background The 3-variable number-of-risk-factors (NRF) model is a prognostic tool for patients undergoing palliative radiotherapy (PRT). However, there is little research on the NRF model for patients with painful non-bone-metastasis tumours
Externí odkaz:
https://doaj.org/article/d2eec8dd82684bdfb60e7135e34b7df3
Publikováno v:
Case Reports in Oncology, Vol 16, Iss 1, Pp 1060-1065 (2023)
Tumor lysis syndrome (TLS) is the rapid disintegration of a malignant tumor treated with anticancer drugs or radiation, causing electrolyte abnormalities such as elevated uric acid levels, elevated potassium and phosphorus levels, and decreased calci
Externí odkaz:
https://doaj.org/article/cfb29f6edd124929855f3a287f0ab9a7
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:
Yoshinobu Shimohigashi, Ryo Toya, Tetsuo Saito, Yumiko Kono, Yasuhiro Doi, Yoshiyuki Fukugawa, Takahiro Watakabe, Tadashi Matsumoto, Yudai Kai, Masato Maruyama, Natsuo Oya
Publikováno v:
Radiation Oncology, Vol 16, Iss 1, Pp 1-7 (2021)
Abstract Background Radiotherapy of gastric mucosa-associated lymphoid tissue (MALT) lymphoma should be delivered to the entire stomach with planning target volume (PTV) that accounts for variations in stomach volume, respiratory movement, and patien
Externí odkaz:
https://doaj.org/article/630351d9b24147149086c7abb47eb9c6
Autor:
Tetsuo Saito, Naoto Shikama, Atsunori Yorozu, Hikaru Kubota, Kenta Murotani, Kohsei Yamaguchi, Natsuo Oya, Naoki Nakamura
Publikováno v:
Clinical and Translational Radiation Oncology, Vol 24, Iss , Pp 111-115 (2020)
Background and purpose: Consistent assessment of the pain response is essential for adequately comparing treatment efficacy between studies. We studied the assessment of pain endpoints in radiotherapy for painful bone metastases (PBMs) and painful no
Externí odkaz:
https://doaj.org/article/d078657ed4ad4f40af50360fd0e6a954