Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Junichi Kishimoto"'
Autor:
Toru MATSUBARA, Ryota NAKAGAWA, Hideaki MITSUI, Yoshiyuki SAITO, Yuichi SAITO, Junichi KISHIMOTO, Hiroki TAMAKI
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 89, Iss 927, Pp 23-00162-23-00162 (2023)
Metal shock absorbers of nuclear spent fuel casks for storage have been developed. The shock absorbers are equipped at both ends of the cylindrical cask to reduce the impact force and maintain the safety functions of the cask in the event of an unexp
Externí odkaz:
https://doaj.org/article/16a8d451f2294bd9951aca63e5b49594
Autor:
Shinichiro Kitao, Mana Ishibashi, Shinya Fujii, Junichi Kishimoto, Hiroto Yunaga, Yasutoshi Ohta
Publikováno v:
Japanese Journal of Radiology. 38:1142-1149
This study evaluated the calcium blooming-reducing effect and the differences of luminal diameter among various-energy virtual monochromatic images (VMIs) using rapid kilovolt-switching dual-energy computed tomography (DECT). Forty-five calcified seg
Autor:
Natsuko Mukai—Yatagai, Hiroto Yunaga, Tomomi Watanabe, Junichi Kishimoto, Yasutoshi Ohta, Toshihide Ogawa, Shinichiro Kitao, Kazuhiro Yamamoto
Publikováno v:
Journal of Cardiovascular Computed Tomography. 13:148-156
Objectives The aim of this study was to evaluate the feasibility of myocardial iodine density and extracellular volume fraction (ECV) from delayed iodine density images using dual-energy computed tomography (DECT) for differentiation between non-isch
Autor:
Shinya Fujii, Toshihide Ogawa, Keita Kuya, Yuki Shinohara, Makoto Sakamoto, Masamichi Kurosaki, Junichi Kishimoto, Eijiro Yamashita
Publikováno v:
Journal of Stroke and Cerebrovascular Diseases. 26:1535-1540
Background The present study compared the applicability of computed tomography carotid plaque imaging using effective Z maps with gemstone spectral imaging (GSI) to that of magnetic resonance plaque imaging using 3-dimensional time-of-flight magnetic
Autor:
Tomomi Watanabe, Yasutoshi Ohta, Kazuhiro Yamamoto, Toshihide Ogawa, Shinichiro Kitao, Junichi Kishimoto
Publikováno v:
Clinical Imaging. 43:42-49
We evaluated the virtual monochromatic imaging (VMI) energy levels that maximize image quality of each coronary plaque component in dual-energy computed tomography angiography in 495 coronary segments (45 for each energy level). Maximal signal-to-noi
Autor:
Hiroto Yunaga, Tetsuya Fukuda, Natsuko Mukai-Yatagai, Shinichiro Kitao, Yasutoshi Ohta, Junichi Kishimoto, Toshihide Ogawa, Kazuhiro Yamamoto, Shinya Fujii
Publikováno v:
Journal of cardiovascular computed tomography. 14(4)
To measure myocardial extracellular volume fraction (ECV) for each region or segment using iodine density image (IDI) with single-source dual-energy computed tomography (DECT) and compare the results with an MRI T1 mapping approach.For this prospecti
Autor:
Tomomi Watanabe, Masahiko Kato, Junichi Kishimoto, Kazuhiro Yamamoto, Yasutoshi Ohta, Toshihide Ogawa, Toshihiko Akasaka, Naoko Sasaki, Natsuko Mukai-Yatagai, Ryosuke Amisaki
Publikováno v:
Journal of cardiology. 75(3)
We aimed to assess the prevalence of myocardial delayed enhancement (MDE) in patients with suspected obstructive coronary artery disease (CAD), and to investigate factors related to the presence or absence of MDE.We retrospectively evaluated 191 cons
Publikováno v:
The international journal of cardiovascular imaging. 34(4)
Single-source dual-energy CT (ssDECT) allows the reconstruction of iodine density images (IDIs) from projection based computing. We hypothesized that adding adaptive statistical iterative reconstruction (ASiR) could improve image quality. The aim of
Autor:
Yoshitsugu Nekomoto, Yu Takaki, Akihisa Iwasaki, Masashi Kameyama, Junichi Kishimoto, Taniguchi Katsuhiko, Tohru Kuga
Publikováno v:
Volume 8: Seismic Engineering.
The free standing racks are spent fuel storage racks with self-sustained structure without fixation to the pit floor or pit walls. If a free standing rack receives a force to move it due to an earthquake, the force acting on each member of the rack i
Autor:
Tomomi Watanabe, Shinichiro Kitao, Junichi Kishimoto, Kazuhiro Yamamoto, Yasutoshi Ohta, Natsuko Mukai, Toshihide Ogawa
Publikováno v:
Journal of computer assisted tomography. 41(5)
OBJECTIVE The aims of this study were to develop and validate an iodine density method for the quantification of myocardial extracellular volume (ECV) fraction using single-source, dual-energy computed tomography. METHODS Extracellular volume measure