Výsledky vyhledávání - "Yoshihisa, Soutome"

Three-dimensional Multi-parameter Mapping of Relaxation Times and Susceptibility Using Partially RF-spoiled Gradient Echo

Autor: Yo Taniguchi, Suguru Yokosawa, Toru Shirai, Ryota Sato, Tomoki Amemiya, Yoshihisa Soutome, Yoshitaka Bito, Hisaaki Ochi

Publikováno v: Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine.

MR parameter mapping is a technique that obtains distributions of parameters such as relaxation time and proton density (PD) and is starting to be used for disease quantification in clinical diagnoses. Quantitative susceptibility mapping is also prom

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::819065020524356ecd045f238218d546
https://pubmed.ncbi.nlm.nih.gov/35908880

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Quantitative susceptibility mapping of prostate with separate calculations for water and fat regions for reducing shading artifacts

Autor: Yoshihisa Soutome, Yoshitaka Bito, Ryota Sato, Hisaaki Ochi, Toru Shirai

Publikováno v: Magnetic Resonance Imaging. 66:22-29

We propose a novel processing method for reducing shading artifacts in quantitative susceptibility mapping (QSM) for prostate imaging. In the conventional method, calculation errors in the boundary regions between water and fat cause shading artifact

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::018ce64631a01503dafa39c48222dc8d
https://doi.org/10.1016/j.mri.2019.11.006

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Simultaneous Arterial and Venous Imaging Using 3D Quantitative Parameter Mapping

Autor: Tomoki, Amemiya, Suguru, Yokosawa, Yo, Taniguchi, Ryota, Sato, Yoshihisa, Soutome, Hisaaki, Ochi, Toru, Shirai

Publikováno v: Magnetic Resonance in Medical Sciences.

To increase the number of images that can be acquired in MR examinations using quantitative parameters, we developed a method for obtaining arterial and venous images with mapping of proton density (PD), RF inhomogeneity (B1), longitudinal relaxation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd5412335e76eb947f4b3fa0ef1884b6
https://doi.org/10.2463/mrms.mp.2021-0170

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B1-control receive array coil (B-RAC) for reducing B1+ inhomogeneity in abdominal imaging at 3T-MRI

Autor: Yukio Kaneko, Hisaaki Ochi, Hideta Habara, Yoshihisa Soutome, Yoshitaka Bito

Publikováno v: Journal of Magnetic Resonance. 287:25-32

B1+ inhomogeneity in the human body increases as the nuclear magnetic resonance (NMR) frequency increases. Various methods have thus been developed to reduce B1+ inhomogeneity, such as a dielectric pad, a coupling coil, parallel transmit, and radio-f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::52f4a839b56fc86d47977e3341108362
https://doi.org/10.1016/j.jmr.2017.12.011

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Susceptibility difference weighted imaging in vertical-field MRI

Autor: Yoshihisa Soutome, Toru Shirai, Yoshitaka Bito, Takenori Murase, Yo Taniguchi, Ryota Sato, Hisaaki Ochi

Publikováno v: Radiological physics and technology. 11(2)

To realize susceptibility-weighted imaging in vertical-field magnetic resonance imaging (MRI), we developed an image-processing method called “susceptibility difference weighted imaging” (SDWI). In SDWI, contrasts are enhanced using a susceptibil

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dae5c8708db387c1e165afeb69ab9145
https://pubmed.ncbi.nlm.nih.gov/29700796

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Diffusion-weighted Line-scan Echo-planar Spectroscopic Imaging Technique to Reduce Motion Artifacts in Metabolite Diffusion Imaging

Autor: Yoshihisa Soutome, Etsuji Yamamoto, Chuzo Tanaka, Yoshitaka Bito, Hisaaki Ochi, Toshihiko Ebisu, Yuko Kawai, Yosuke Otake, Satoshi Hirata, Koji Hirata, Toshihiro Higuchi, Masahiro Umeda, Toru Shirai

Publikováno v: Magnetic Resonance in Medical Sciences. 14:43-50

Metabolite diffusion is expected to provide more specific microstructural and functional information than water diffusion. However, highly accurate measurement techniques have still not been developed, especially for reducing motion artifacts caused

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fc593d29c20c7761b1b30162b7bc7f6
https://doi.org/10.2463/mrms.2014-0024

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Autor: Yukio, Kaneko, Yoshihisa, Soutome, Hideta, Habara, Yoshitaka, Bito, Hisaaki, Ochi

Publikováno v: Journal of magnetic resonance (San Diego, Calif. : 1997). 287

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::3c077554ddf12a4196f34c0f2414815b
https://pubmed.ncbi.nlm.nih.gov/29276996

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Double-tuned Radiofrequency Coil for 19F and 1H Imaging

Autor: Koji Hirata, Hisaaki Ochi, Yoshihisa Soutome, Yoshitaka Bito, Yosuke Otake

Publikováno v: Magnetic Resonance in Medical Sciences. 13:199-205

We developed a double-tuned radiofrequency (RF) coil using a novel circuit method to double tune for fluorine-19 (19F) and 1H magnetic resonance imaging, whose frequencies are very close to each other. The RF coil consists of 3 parallel-connected ser

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38ca4cc984a8cb6a73a13afec450ff65
https://doi.org/10.2463/mrms.2013-0094

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