Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Tetsuo, Ogino"'
Autor:
Naoki Ohno, Mitsunori Matsumae, Tosiaki Miyati, Shuhei Shibukawa, Isao Muro, Yutaka Imai, Tetsu Niwa, Tetsuo Ogino
Publikováno v:
Radiological Physics and Technology. 13:136-143
DWI thermometry is affected by CSF pulsation. To achieve more accurate determination of intraventricular temperature, we compared conventional DWI (c-DWI), acceleration motion compensation DWI (aMC-DWI), and motion compensation DWI (MC-DWI) when usin
Autor:
Mitsunori Matsumae, Haruo Saito, Makoto Obara, Kagayaki Kuroda, Shuhei Shibukawa, Tetsu Niwa, Tomohiko Horie, Nao Kajihara, Tetsuo Ogino
Publikováno v:
Magnetic Resonance in Medical Sciences
The feasibility of the 3D dynamic improved motion-sensitized driven-equilibrium steady-state free precession (3D dynamic iMSDE SSFP) was evaluated for visualizing CSF motion and the appropriate parameters were determined. Both flow phantom and volunt
Autor:
Shuhei Shibukawa, Tetsu Niwa, Tosiaki Miyati, Tetsuo Ogino, Daisuke Yoshimaru, Kagayaki Kuroda
Publikováno v:
Physics in Medicine & Biology. 66:24NT01
To reduce the determination errors of CSF pulsation in diffusion-weighted image (DWI) thermometry, we investigated whether applying second-order motion compensation diffusion tensor imaging (2nd-MC DTI) and fractional anisotropy (FA) processing impro
Autor:
Tosiaki Miyati, Hiroshi Honda, Makoto Obara, Tetsuo Ogino, Yukihisa Takayama, Marc Van Cauteren, Tomoyuki Okuaki, Akihiro Nishie
Publikováno v:
Magnetic Resonance Imaging. 40:17-23
Purpose The purpose of this study is to investigate the performance of stretched-type adiabatic spin lock pulses for homogeneous spin locking with a flexible spin lock time (TSL) setting. Methods T1ρ values were obtained from 61 patients and five no
Autor:
Yuriko Suzuki, Akira Suwa, Marc Van Cauteren, James A. Meakin, Matthias J.P. van Osch, Tetsuo Ogino, Noriyuki Fujima, Hiroyuki Sugimori
Publikováno v:
Magnetic Resonance in Medicine
Purpose Noncontrast 4D-MR-angiography (MRA) using arterial spin labeling (ASL) is beneficial because high spatial and temporal resolution can be achieved. However, ASL requires acquisition of labeled and control images for each phase. The purpose of
Autor:
Tomohiko Horie, Nao Kajihara, Haruo Saito, Shuhei Shibukawa, Makoto Obara, Tetsuo Ogino, Tetsu Niwa, Kagayaki Kuroda, Mitsunori Matsumae
Publikováno v:
Magnetic Resonance in Medical Sciences; 2021, Vol. 20 Issue 1, p112-118, 7p
Autor:
Tetsu Niwa, Tomohiko Horie, Yutaka Imai, Tetsuo Ogino, Shuhei Shibukawa, Mitsunori Matsumae, Isao Muro, Tosiaki Miyati
Publikováno v:
Magnetic Resonance in Medical Sciences
We assessed labeling region selectivity on time-spatial labeling inversion pulse (Time-SLIP) with pencil beam pulse (PB Time-SLIP) for the use of visualizing cerebrospinal fluid (CSF) flow dynamics. We compared the selectivity of labeling to the thir
Autor:
Masaru Ishihara, Marc Van Cauteren, Tetsuo Ogino, Momoe Kawakami, Tsuyoshi Ishimoto, Tosiaki Miyati, Satoshi Kobayashi, Tomoyuki Okuaki
Publikováno v:
Radiological Physics and Technology. 7:352-357
A separate pulmonary vein (PV) is difficult to depict with the commonly used bright-blood magnetic resonance angiography method. Until now, no study has described the depiction of peripheral PVs without the artery. Our purpose in this study was to de
Autor:
Takashi Yoshiura, Satoshi Tatsuno, Taro Takahara, Kazufumi Kikuchi, Osamu Togao, Seishi Sawano, Makoto Obara, Masanobu Nakamura, Masami Yoneyama, Tetsuo Ogino
Publikováno v:
Magnetic Resonance in Medical Sciences. 13:277-284
We introduced and optimized a novel sequence of fast (about 4 min), volumetric, high resolution, simultaneous bright- and black-blood imaging with sufficient T1 contrast between enhanced metastasis and surrounding brain parenchyma for their different
Autor:
Tetsuo Ogino, Nao Kajihara, Isao Muro, Mami Kawakata, Masatoshi Honda, Hayato Takano, Tomohiko Horie
Publikováno v:
Japanese Journal of Radiological Technology. 67:888-894
The purpose of this study was to improve the visualization of long-axis black-blood imaging of the carotid arteries. We experimented on phantom and in-vivo study of 3 dimension (3D) inversion recovery T(1) turbo field echo combined with phase sensiti