Zobrazeno 1 - 10
of 181
pro vyhledávání: '"Masahisa, Onoguchi"'
Autor:
Hiroki Nosaka, Masahisa Onoguchi, Hiroyuki Tsushima, Masaya Suda, Satoshi Kurata, Ayano Onoma, Ryosuke Murakawa
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-9 (2022)
Abstract The specific binding ratio (SBR) is an objective indicator of N-ω-fluoropropyl-2β-carbomethoxy-3β-(4-[123I] iodophenyl) nortropane ([123I]FP-CIT) single-photon emission computed tomography (SPECT) that could be used for the diagnosis of P
Externí odkaz:
https://doaj.org/article/26ba6210b3a543ec99b9f2c4956dc7f2
Autor:
Hajime Ichikawa, Toyohiro Kato, Kenta Miwa, Takayuki Shibutani, Koichi Okuda, Akio Nagaki, Hiroyuki Tsushima, Masahisa Onoguchi
Publikováno v:
Asia Oceania Journal of Nuclear Medicine and Biology, Vol 9, Iss 2, Pp 158-166 (2021)
Objectives: Combined positron emission tomography/computed tomography (PET/CT) has gradually advanced with the introduction of newly developed techniques. However, the recent status of imaging techniques (e.g., scanning range, availability of correct
Externí odkaz:
https://doaj.org/article/ab239197b6204499938168996b39479e
Autor:
Takayuki Shibutani, Masahisa Onoguchi, Yuka Naoi, Hiroto Yoneyama, Takahiro Konishi, Ringo Tatami, Kenichi Nakajima
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Abstract The aim of this study was to demonstrate the usefulness of SwiftScan with a low-energy high-resolution and sensitivity (LEHRS) collimator for bone scintigraphy using a novel bone phantom simulating the human body. SwiftScan planar image of l
Externí odkaz:
https://doaj.org/article/b1e196e9467d4d4bb719cad2d37d773d
Autor:
Jan V. Hoffmann, Jan P. Janssen, Takayuki Kanno, Takayuki Shibutani, Masahisa Onoguchi, Constantin Lapa, Jan-Peter Grunz, Andreas K. Buck, Takahiro Higuchi
Publikováno v:
EJNMMI Physics, Vol 7, Iss 1, Pp 1-15 (2020)
Abstract Background Small-animal single-photon emission computed tomography (SPECT) systems with multi-pinhole collimation and large stationary detectors have advantages compared to systems with moving small detectors. These systems benefit from less
Externí odkaz:
https://doaj.org/article/850fcd86fb4d4ac6bd41a17c1b671f90
Autor:
Hajime Ichikawa, Kenta Miwa, Koichi Okuda, Takayuki Shibutani, Toyohiro Kato, Akio Nagaki, Hiroyuki Tsushima, Masahisa Onoguchi
Publikováno v:
Asia Oceania Journal of Nuclear Medicine and Biology, Vol 8, Iss 2, Pp 116-122 (2020)
Objective(s): Nuclear medicine technologists in Japan often perform additional single-photon emission computed tomography (SPECT) with or without computed tomography (CT) after whole-body imaging for bone scintigraphy. In this study, we wanted to ide
Externí odkaz:
https://doaj.org/article/55142f70f447438c8671e0230b5da451
Autor:
Noriaki Miyaji, Kenta Miwa, Ayaka Tokiwa, Hajime Ichikawa, Takashi Terauchi, Mitsuru Koizumi, Masahisa Onoguchi
Publikováno v:
EJNMMI Research, Vol 10, Iss 1, Pp 1-12 (2020)
Abstract Background Two novel methods of image reconstruction, xSPECT Quant (xQ) and xSPECT Bone (xB), that use an ordered subset conjugate gradient minimizer (OSCGM) for SPECT/CT reconstruction have been proposed. The present study compares the perf
Externí odkaz:
https://doaj.org/article/c0d7b8f364894692add598e147f5c5ff
Publikováno v:
Asia Oceania Journal of Nuclear Medicine and Biology, Vol 7, Iss 2, Pp 121-128 (2019)
Objective(s): In heart failure, the heart-to-mediastinum (H/M) ratio of the delayed image and washout rate (WR) are well-known as a powerful cardiac event predictors. H/M ratio quantifies the accumulation rate of MIBG in the myocardium and WR quantif
Externí odkaz:
https://doaj.org/article/a20e9071f64c4ffca7dde2ed1a2b63e8
Autor:
Hiroto Yoneyama, Kenichi Nakajima, Junichi Taki, Hiroshi Wakabayashi, Shinro Matsuo, Takahiro Konishi, Koichi Okuda, Takayuki Shibutani, Masahisa Onoguchi, Seigo Kinuya
Publikováno v:
European Journal of Hybrid Imaging, Vol 3, Iss 1, Pp 1-14 (2019)
Abstract Background Detecting culprit coronary arteries in patients with ischemia using only myocardial perfusion single-photon emission computed tomography (SPECT) can be challenging. This study aimed to improve the detection of culprit regions usin
Externí odkaz:
https://doaj.org/article/a348d15d7eff4f21b0465a510e279b97
Autor:
Hajime Ichikawa, Takayuki Shibutani, Hideki Shimada, Koichi Okuda, Toyohiro Kato, Hiroki Nosaka, Akio Nagaki, Masahisa Onoguchi
Publikováno v:
Radiological Physics and Technology. 16:244-253
Autor:
Taisuke Murata, Yuri Hayashi, Masahisa Onoguchi, Takayuki Shibutani, Takashi Iimori, Koichi Sawada, Tetsuro Umezawa, Yoshitada Masuda, Takashi Uno
Publikováno v:
Journal of Nuclear Medicine Technology. 51:49-56