Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Masami Hirata"'
Publikováno v:
Journal of Structural Engineering B. :345-352
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a225ee5e57acb6eea5b22e7c77843d17
https://doi.org/10.3130/aijjse.68b.0_345
https://doi.org/10.3130/aijjse.68b.0_345
Publikováno v:
Radiological Physics and Technology. 8:295-304
This paper presents an iterative image reconstruction method for radial encodings in MRI based on a total variation (TV) regularization. The algebraic reconstruction method combined with total variation regularization (ART_TV) is implemented with a r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f200c01f3998d39c4ef3fcd11b054202
https://doi.org/10.1007/s12194-015-0320-7
https://doi.org/10.1007/s12194-015-0320-7
Publikováno v:
Radiological Physics and Technology. 6:375-384
In follow-up brain magnetic resonance imaging (MRI), precise reproducibility of the scan prescription is important so that over- or underestimating changes in volumes of clinical interest is prevented. (The scan prescription is defined as the locatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3155259534f1fc237d9bf9dc3b3c9a46
https://doi.org/10.1007/s12194-013-0211-8
https://doi.org/10.1007/s12194-013-0211-8
Publikováno v:
Journal of Magnetic Resonance Imaging. 37:652-659
Purpose: To assess the ability of magnetic resonance imaging (MRI) to depict the semicircular canals of the inner ear by comparing results from the sampling perfection with application-optimized contrasts by using different flip angle evolutions (SPA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68b67b7e706b171870a8eb07bf4860be
https://doi.org/10.1002/jmri.23863
https://doi.org/10.1002/jmri.23863
Autor:
Yutaka Kubo, Shinichi Nunoda, Masami Hirata, Haruhiko Machida, Shinya Kojima, Kiyotaka Okajima, Eiko Ueno, Kazunobu Shitakura, Kuniaki Otsuka
Publikováno v:
The International Journal of Cardiovascular Imaging. 29:151-157
Heart transplant recipients undergo annual screening of early-stage cardiac allograft vasculopathy (CAV) by invasive coronary flow reserve (CFR) measurement. We compared the sensitivity for CAV detection between the CFR measurement and noninvasive ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec76696c7f503dd8b6dc5e4e9aa0f404
https://doi.org/10.1007/s10554-012-0070-0
https://doi.org/10.1007/s10554-012-0070-0
Autor:
Satoru Morita, Eiko Ueno, Masaru Suzuki, Masami Hirata, Shinya Kojima, Kazufumi Suzuki, Ai Masukawa
Publikováno v:
Journal of Magnetic Resonance Imaging. 34:157-164
Purpose: To compare the image qualities of unenhanced electrocardiographically (ECG)-gated fast spin-echo magnetic resonance digital subtraction angiography (MRDSA) using a short echo-spacing three-dimensional (3D) sequence, known as sampling perfect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8b124bfe2021a082e851ba03e2939aa
https://doi.org/10.1002/jmri.22595
https://doi.org/10.1002/jmri.22595
Publikováno v:
RadioGraphics. 31:E13-E33
Alongside the two conventional unenhanced magnetic resonance (MR) angiographic techniques, namely time-of-flight and phase-contrast MR angiography, several novel techniques have since been developed, including electrocardiograph (ECG)-gated fast spin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e22ef812d573138770432a6c60b4d8b9
https://doi.org/10.1148/rg.312105075
https://doi.org/10.1148/rg.312105075
Publikováno v:
Magnetic Resonance Imaging. 28:1306-1310
Purpose We aimed to evaluate flow patterns in the superior vena cava (SVC) and azygos vein confluence with cine phase-contrast magnetic resonance imaging with consideration for the role played by the azygos arch valves. Materials and Methods Two-dime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de55837720c1b20c6352f0668ec2101a
https://doi.org/10.1016/j.mri.2010.06.005
https://doi.org/10.1016/j.mri.2010.06.005
Autor:
Takeshi Okazaki, Shinya Kojima, Masami Hirata, Kazufumi Suzuki, Haruhiko Machida, Satoru Morita, Yoshiaki Komori, Munekuni Sato, Ai Masukawa, Eiko Ueno, Yun Shen
Publikováno v:
Japanese Journal of Radiology. 28:571-577
We compared the accuracy of magnetic resonance imaging (MRI) measurements of pulsatile flow velocity in a small tube phantom using different spatial factors versus those obtained by intraluminal Doppler guidewire examination (as reference).We generat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac74c09915bafc8a7c203be0eec2ddb5
https://doi.org/10.1007/s11604-010-0472-7
https://doi.org/10.1007/s11604-010-0472-7
Autor:
Masami Hirata, Haruhiko Machida, Takahiro Ohnishi, Chiaki Imura, Shinya Kojima, Mikihiko Fujimura, Satoru Morita, Kazufumi Suzuki, Eiko Ueno
Publikováno v:
Journal of Magnetic Resonance Imaging. 28:673-677
Purpose To confirm the superiority of the navigator-triggered prospective acquisition correction (PACE) technique over the conventional respiratory-triggered (RESP) technique, something that has been perceived experimentally but without definite evid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51b7cc7e3e9e26003add44bf85f78029
https://doi.org/10.1002/jmri.21485
https://doi.org/10.1002/jmri.21485