Zobrazeno 1 - 10
of 113
pro vyhledávání: '"Kei Wagatsuma"'
Autor:
Kei Wagatsuma, Muneyuki Sakata, Kenta Miwa, Yumi Hamano, Hirofumi Kawakami, Yuto Kamitaka, Tensho Yamao, Noriaki Miyaji, Kenji Ishibashi, Tetsuro Tago, Jun Toyohara, Kenji Ishii
Publikováno v:
EJNMMI Physics, Vol 11, Iss 1, Pp 1-16 (2024)
Abstract Purpose Bayesian penalised likelihood (BPL) reconstruction, which incorporates point-spread-function (PSF) correction, provides higher signal-to-noise ratios and more accurate quantitation than conventional ordered subset expectation maximiz
Externí odkaz:
https://doaj.org/article/a7bcf83c9f3d45dc93081246bd589657
Autor:
Tensho Yamao, Kenta Miwa, Yuta Kaneko, Noriyuki Takahashi, Noriaki Miyaji, Koki Hasegawa, Kei Wagatsuma, Yuto Kamitaka, Hiroshi Ito, Hiroshi Matsuda
Publikováno v:
Brain Sciences, Vol 14, Iss 4, p 406 (2024)
Background: Standard methods for deriving Centiloid scales from amyloid PET images are time-consuming and require considerable expert knowledge. We aimed to develop a deep learning method of automating Centiloid scale calculations from amyloid PET im
Externí odkaz:
https://doaj.org/article/28edc846c63743b0a868be4707612fe2
Autor:
Kenta Miwa, Tokiya Yoshii, Kei Wagatsuma, Shogo Nezu, Yuto Kamitaka, Tensho Yamao, Rinya Kobayashi, Shohei Fukuda, Yu Yakushiji, Noriaki Miyaji, Kenji Ishii
Publikováno v:
EJNMMI Physics, Vol 10, Iss 1, Pp 1-12 (2023)
Abstract Background The Bayesian penalized likelihood PET reconstruction (BPL) algorithm, Q.Clear (GE Healthcare), has recently been clinically applied to clinical image reconstruction. The BPL includes a relative difference penalty (RDP) as a penalt
Externí odkaz:
https://doaj.org/article/d1d8252c65884dacbcfc88f09e67ffc1
Autor:
Etsuko Imabayashi, Kenji Ishii, Jun Toyohara, Kei Wagatsuma, Muneyuki Sakata, Tetsuro Tago, Kenji Ishibashi, Narumi Kojima, Noriyuki Kohda, Aya M. Tokumaru, Hunkyung Kim
Publikováno v:
Frontiers in Aging Neuroscience, Vol 14 (2022)
Neurodegenerative changes in the preclinical stage of Alzheimer’s disease (AD) have recently been the focus of attention because they may present a range of treatment opportunities. A total of 134 elderly volunteers who lived in a local community w
Externí odkaz:
https://doaj.org/article/8107d187fdba4e08845109a1a883a7a2
Autor:
Shinya Nakamura, Shigehito Uezono, Yuko Nagai, Masakazu Kanetaka, Kei Wagatsuma, Kenji Ishii, Takeshi Kumakawa, Kensuke Yasue, Yorito Anamizu, Fumiaki Tokimura, Tsuyoshi Miyazaki
Publikováno v:
Clinical Case Reports, Vol 8, Iss 9, Pp 1651-1658 (2020)
Abstract Thigh pain after hip arthroplasty is multifactorial; uncovering its etiology is paramount for optimal treatment. This is the first case where 18F‐sodium fluoride positron emission tomography substantially helped in diagnosing the post‐hi
Externí odkaz:
https://doaj.org/article/455c0d4521eb47d5820a31559d4a7ace
Autor:
Tokiya Yoshii, Kenta Miwa, Masashi Yamaguchi, Kai Shimada, Kei Wagatsuma, Tensho Yamao, Yuto Kamitaka, Seiya Hiratsuka, Rinya Kobayashi, Hajime Ichikawa, Noriaki Miyaji, Tsuyoshi Miyazaki, Kenji Ishii
Publikováno v:
EJNMMI Physics, Vol 7, Iss 1, Pp 1-14 (2020)
Abstract Background The Bayesian penalized likelihood (BPL) algorithm Q.Clear (GE Healthcare) allows fully convergent iterative reconstruction that results in better image quality and quantitative accuracy, while limiting image noise. The present stu
Externí odkaz:
https://doaj.org/article/62f1e81a2d584e62a8f21cb104de9f96
Autor:
Soichiro Kaneko, Masakazu Kanetaka, Kei Wagatsuma, Kenji Ishii, Yorito Anamizu, Fumiaki Tokimura, Tsuyoshi Miyazaki
Publikováno v:
Clinical Case Reports, Vol 7, Iss 6, Pp 1211-1214 (2019)
Abstract We used the NaF PET scan to assess osteometabolic changes around the distal half of the femoral canal by intramedullary (IM) drill for femoral IM guiding rod insertion in total knee arthroplasty. Gentle IM rod insertion and focused attention
Externí odkaz:
https://doaj.org/article/0a26079ff5c74f869b711b77927563b8
Autor:
Taisuke Murata, Kenta Miwa, Noriaki Miyaji, Kei Wagatsuma, Tomoyuki Hasegawa, Keiichi Oda, Takuro Umeda, Takashi Iimori, Yoshitada Masuda, Takashi Terauchi, Mitsuru Koizumi
Publikováno v:
EJNMMI Physics, Vol 3, Iss 1, Pp 1-10 (2016)
Abstract Background The point spread function (PSF) of positron emission tomography (PET) depends on the position across the field of view (FOV). Reconstruction based on PSF improves spatial resolution and quantitative accuracy. The present study aim
Externí odkaz:
https://doaj.org/article/0b9f2e0d8bfa4f688510784be2b8ce52
Publikováno v:
Japanese Journal of Radiological Technology. 79:477-487
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72cead11df89d5dde4fe0f6db67eacc5
https://doi.org/10.6009/jjrt.2023-2200
https://doi.org/10.6009/jjrt.2023-2200
Autor:
Mio Okamoto, Tomoyuki Hasegawa, Keiichi Oda, Hiroki Miyatake, Kei Kikuchi, Yusuke Inoue, Yoko Satoh, Yuichi Inaoka, Masami Kawamoto, Koji Shima, Kenji Kanbayashi, Miho Yoshii, Tomoyuki Kanno, Kei Wagatsuma, Masatoshi Hashimoto
Publikováno v:
Radiological Physics and Technology. 16:49-56
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40e893c8818154140f78ff999c36c2fa
https://doi.org/10.1007/s12194-022-00692-0
https://doi.org/10.1007/s12194-022-00692-0