Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Masatoyo Nakajo"'
Autor:
Kiyohisa Kamimura, Tsubasa Nakano, Tomohito Hasegawa, Masanori Nakajo, Chihiro Yamada, Yoshiki Kamimura, Kentaro Akune, Fumitaka Ejima, Takuro Ayukawa, Hiroaki Nagano, Koji Takumi, Masatoyo Nakajo, Nayuta Higa, Hajime Yonezawa, Ryosuke Hanaya, Mari Kirishima, Akihide Tanimoto, Takashi Iwanaga, Hiroshi Imai, Thorsten Feiweier, Takashi Yoshiura
Publikováno v:
Cancer Imaging, Vol 23, Iss 1, Pp 1-13 (2023)
Abstract Background This study aimed to elucidate the impact of effective diffusion time setting on apparent diffusion coefficient (ADC)-based differentiation between primary central nervous system lymphomas (PCNSLs) and glioblastomas (GBMs) and to i
Externí odkaz:
https://doaj.org/article/37badc4f5ace460480060f7ac2fbd6b2
Autor:
Kiyohisa Kamimura, Yoshiki Kamimura, Tsubasa Nakano, Tomohito Hasegawa, Masanori Nakajo, Chihiro Yamada, Kentaro Akune, Fumitaka Ejima, Takuro Ayukawa, Soichiro Ito, Hiroaki Nagano, Koji Takumi, Masatoyo Nakajo, Hiroyuki Uchida, Kazuhiro Tabata, Takashi Iwanaga, Hiroshi Imai, Thorsten Feiweier, Takashi Yoshiura
Publikováno v:
Cancer Imaging, Vol 23, Iss 1, Pp 1-13 (2023)
Abstract Background This study was designed to investigate the use of time-dependent diffusion magnetic resonance imaging (MRI) parameters in distinguishing between glioblastomas and brain metastases. Methods A retrospective study was conducted invol
Externí odkaz:
https://doaj.org/article/eb989119e3c44131b2d86069e5cd8165
Autor:
Takato Tanaka, Masatoyo Nakajo, Hirofumi Kawakami, Eriko Motomura, Tomofumi Fujisaka, Satoko Ojima, Yasumasa Saigo, Takashi Yoshiura
Publikováno v:
EJNMMI Research, Vol 12, Iss 1, Pp 1-10 (2022)
Abstract Background To explore the feasibility of short-time-window Ki imaging using a population-based arterial input function (IF) and optimized Bayesian penalized likelihood (BPL) reconstruction as a practical alternative to long-time-window Ki im
Externí odkaz:
https://doaj.org/article/46cb272a543341b2b879a0aa67944a4d
Autor:
Hiromitsu Daisaki, Kazuhiro Kitajima, Masatoyo Nakajo, Tadashi Watabe, Kimiteru Ito, Fumi Sakamoto, Tadaki Nakahara, Mana Ishibashi, Akira Toriihara
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
Abstract This study assessed the possibility of semi-automatic harmonization of standardized uptake values (SUVs) in multicenter studies. Phantom data were acquired using 16 PET/CT scanners (including 3 PET/CT scanners with a silicon photomultiplier
Externí odkaz:
https://doaj.org/article/19b1de834b034dc791e419a48eca77e7
Autor:
Masatoyo Nakajo, Satoko Ojima, Hirofumi Kawakami, Atsushi Tani, Akira Hirayama, Megumi Jinguji, Takuro Kubozono, Mitsuru Ohishi, Takashi Yoshiura
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Abstract The association between 18F-fluorodeoxyglucose (18F-FDG) myocardial uptake and clinical presentations in cardiac sarcoidosis (CS) has not yet been clarified. The Patlak slope, Ki, which represents the rate of 18F-FDG uptake is a quantitative
Externí odkaz:
https://doaj.org/article/7f3641ec6573453cafede21f38113e7c
Autor:
Masatoyo Nakajo, Hirofumi Nakayama, Masayuki Sato, Yoshihiko Fukukura, Masayuki Nakajo, Yoriko Kajiya, Masakazu Yanagi, Kazuhiro Tabata, Michiyo Higashi
Publikováno v:
Acta Radiologica Open, Vol 1, Iss 3, Pp 1-4 (2012)
We report a case of multiple benign metastasizing leiomyoma (BML) lung nodules showing faint or non-avid uptake of F-18 fluorodeoxyglucose (FDG) (respective 1-hour early and 2-hour delayed maximum standardized uptake values; 1.3 or less and 1.2 or le
Externí odkaz:
https://doaj.org/article/e842cb53623f4adab0601995f8217d24
Autor:
Masatoyo Nakajo, Yoshihisa Horizoe, Kodai Kawaji, Megumi Jinguji, Atsushi Tani, Yoshihiko Fukukura, Mitsuru Ohishi, Takashi Yoshiura
Publikováno v:
Japanese Journal of Radiology. 41:437-448
Purpose This study examined the usefulness of the maximum standardized uptake value (SUVmax) of myocardial [123I]-metaiodobenzylguanidine ([123I]-MIBG) to characterize myocardial function by comparing it with echocardiographic parameters in patients
Publikováno v:
Annals of Nuclear Medicine. 36:798-803
Since the inline positron emission tomography (PET)/magnetic resonance imaging (MRI) system appeared in clinical, more than a decade has passed. In this article, we have reviewed recently-published articles about PET/MRI. There have been articles abo
Autor:
Masatoyo Nakajo, Kodai Kawaji, Hiromi Nagano, Megumi Jinguji, Akie Mukai, Hiroshi Kawabata, Atsushi Tani, Daisuke Hirahara, Masaru Yamashita, Takashi Yoshiura
Publikováno v:
Molecular Imaging and Biology. 25:303-313
Autor:
Kodai Kawaji, Masatoyo Nakajo, Yoshiaki Shinden, Megumi Jinguji, Atsushi Tani, Daisuke Hirahara, Ikumi Kitazono, Takao Ohtsuka, Takashi Yoshiura
Publikováno v:
Molecular Imaging and Biology.