Zobrazeno 1 - 10
of 313
pro vyhledávání: '"Shigeki, Ito"'
Autor:
Tomohiro Ueda, Kousuke Yamshita, Retsu Kawazoe, Yuta Sayawaki, Yoshiki Morisawa, Ryosuke Kamezaki, Ryuji Ikeda, Shinya Shiraishi, Yoshikazu Uchiyama, Shigeki Ito
Publikováno v:
Asia Oceania Journal of Nuclear Medicine and Biology, Vol 12, Iss 2, Pp 108-119 (2024)
Objective(s): To develop the following three attenuation correction (AC) methods for brain 18F-fluorodeoxyglucose-positron emission tomography (PET), using deep learning, and to ascertain their precision levels: (i) indirect method; (ii) direct metho
Externí odkaz:
https://doaj.org/article/d40aa16e1e6e41bd995a1dbb9f8c0d48
Autor:
Taeko Tomimatsu, Kousuke Yamshita, Takumi Sakata, Ryosuke Kamezaki, Ryuji Ikeda, Shinya Shiraishi, Yoshikazu Uchiyama, Shigeki Ito
Publikováno v:
Asia Oceania Journal of Nuclear Medicine and Biology, Vol 12, Iss 2, Pp 120-130 (2024)
Objective(s): A simple noninvasive microsphere (SIMS) method using 123I-IMP and an improved brain uptake ratio (IBUR) method using 99mTc-ECD for the quantitative measurement of regional cerebral blood flow have been recently reported. The input funct
Externí odkaz:
https://doaj.org/article/72339c49601f4390a62f22ed214192ff
Autor:
Kodai Nishi, Masahiro Hirota, Shogo Higaki, Shinya Shiraishi, Takashi Kudo, Naoki Matsuda, Shigeki Ito
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-8 (2023)
Abstract Alpha-cyclodextrin, a six d-glucose cyclic oligosaccharide, has several applications in food and pharmaceuticals, but has also been reported to retain iodine in a stable manner for 16 months. Radioactive iodine, which may cause thyroid cance
Externí odkaz:
https://doaj.org/article/8467273c66ff4891b21f62768812fb19
Autor:
Md. Rafiqul Islam, Mehrdad Shahmohammadi Beni, Akihito Inamura, Nursel Şafakattı, Masayasu Miyake, Mahabubur Rahman, Abul Kalam Fazlul Haque, Shigeki Ito, Shinichi Gotoh, Taiga Yamaya, Hiroshi Watabe
Publikováno v:
Tomography, Vol 8, Iss 5, Pp 2313-2329 (2022)
Proton irradiations are highly sensitive to spatial variations, mainly due to their high linear energy transfer (LET) and densely ionizing nature. In realistic clinical applications, the targets of ionizing radiation are inhomogeneous in terms of geo
Externí odkaz:
https://doaj.org/article/95c5ece5c59e446dbcae0e24c5fedbbc
Autor:
Yasunori Kogure, Hiroshi Handa, Yuta Ito, Masaki Ri, Yuichi Horigome, Masaki Iino, Yoriko Harazaki, Takahiro Kobayashi, Masahiro Abe, Tadao Ishida, Shigeki Ito, Hiromi Iwasaki, Junya Kuroda, Hirohiko Shibayama, Kazutaka Sunami, Hiroyuki Takamatsu, Hideto Tamura, Toshiaki Hayashi, Kiwamu Akagi, Tomohiro Shinozaki, Takahiro Yoshida, Ikuo Mori, Shinsuke Iida, Takahiro Maeda, Keisuke Kataoka
Publikováno v:
HemaSphere, Vol 7, p e2665764 (2023)
Externí odkaz:
https://doaj.org/article/11421b9993d24536a7fba78bfcb51424
Publikováno v:
Asia Oceania Journal of Nuclear Medicine and Biology, Vol 10, Iss 2, Pp 126-137 (2022)
Objective(s): Somatostatin receptor scintigraphy (SRS) using 111In-pentetreotide has no established quantification method. The purpose of this study was to develop a new quantitative method to correct the partial volume effect (PVE) for individual en
Externí odkaz:
https://doaj.org/article/e2f6ff4bf36645b2b02e272277c3b152
Publikováno v:
Health Physics; Sep2024, Vol. 127 Issue 3, p365-372, 8p
Autor:
Tsuyoshi Sato, Takahiro Maeta, Ryosuke Abe, Hiroyuki Yamada, Kazuyuki Ishida, Akiko Yashima-Abo, Kazuki Kiyohara, Shinri Miyajima, Shigeki Ito
Publikováno v:
Case Reports in Oncology, Vol 14, Iss 1, Pp 343-346 (2021)
Salivary duct carcinoma (SDC) is a rare and highly aggressive malignancy. A 58-year-old man presented with a right-sided submandibular mass and metastatic lesions in the right supraclavicular and inferior internal jugular nodes. He underwent right su
Externí odkaz:
https://doaj.org/article/387282b23046402cb5752b84281c2e73
Autor:
Tomohiro Ueda, Kosuke Yamashita, Retsu Kawazoe, Yuta Sayawaki, Yoshiki Morisawa, Ryosuke Kamezaki, Ryuji Ikeda, Shinya Shiraishi, Yoshikazu Uchiyama, Shigeki Ito
Publikováno v:
Asia Oceania Journal of Nuclear Medicine & Biology; Jul2024, Vol. 12 Issue 2, p108-119, 12p
Autor:
M. Rafiqul Islam, Mehrdad Shahmohammadi Beni, Chor-yi Ng, Masayasu Miyake, Mahabubur Rahman, Shigeki Ito, Shinichi Gotoh, Taiga Yamaya, Hiroshi Watabe
Publikováno v:
PLoS ONE, Vol 17, Iss 2 (2022)
The Monte Carlo method is employed in this study to simulate the proton irradiation of a water-gel phantom. Positron-emitting radionuclides such as 11C, 15O, and 13N are scored using the Particle and Heavy Ion Transport Code System Monte Carlo code p
Externí odkaz:
https://doaj.org/article/9c00f1fa8f4645d2818573a1d63c5059