Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Hisaaki, Ochi"'
Autor:
Tomoki Amemiya, Suguru Yokosawa, Yo Taniguchi, Ryota Sato, Yoshihisa Soutome, Hisaaki Ochi, Toru Shirai
Publikováno v:
Magnetic Resonance in Medical Sciences; 2024, Vol. 23 Issue 1, p56-65, 10p
Autor:
Yo Taniguchi, Suguru Yokosawa, Toru Shirai, Ryota Sato, Tomoki Amemiya, Yoshihisa Soutome, Yoshitaka Bito, Hisaaki Ochi
Publikováno v:
Magnetic Resonance in Medical Sciences; 2023, Vol. 22 Issue 4, p459-468, 10p
Publikováno v:
Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine.
Quantitative susceptibility mapping (QSM) is useful for obtaining biological information. To calculate susceptibility distribution, it is necessary to calculate the local field caused by the differences of susceptibility between the tissues. The loca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c8a0b3a3aae0c909e17f88b5c30fe26
https://pubmed.ncbi.nlm.nih.gov/36372397
https://pubmed.ncbi.nlm.nih.gov/36372397
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
https://pubmed.ncbi.nlm.nih.gov/35908880
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
https://doi.org/10.1016/j.mri.2019.11.006
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
https://doi.org/10.2463/mrms.mp.2021-0170
Autor:
Akinori Yamaguchi, Kohsuke Kudo, Ryota Sato, Yasuo Kawata, Niki Udo, Masaaki Matsushima, Ichiro Yabe, Makoto Sasaki, Masafumi Harada, Noriyuki Matsukawa, Toru Shirai, Hisaaki Ochi, Yoshitaka Bito
Publikováno v:
Magnetic Resonance in Medical Sciences; 2023, Vol. 22 Issue 1, p87-94, 8p
Autor:
Ryota Sato, Kohsuke Kudo, Niki Udo, Masaaki Matsushima, Ichiro Yabe, Akinori Yamaguchi, Khin Khin Tha, Makoto Sasaki, Masafumi Harada, Noriyuki Matsukawa, Tomoki Amemiya, Yasuo Kawata, Yoshitaka Bito, Hisaaki Ochi, Toru Shirai
Publikováno v:
European radiology. 32(7)
Voxel-based morphometry (VBM) is widely used to quantify the progression of Alzheimer's disease (AD), but improvement is still needed for accurate early diagnosis. We evaluated the feasibility of a novel diagnosis index for early diagnosis of AD base
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e60299b0cd0299b45977e187e238d2e
https://pubmed.ncbi.nlm.nih.gov/35137303
https://pubmed.ncbi.nlm.nih.gov/35137303
Autor:
Masafumi Harada, Akinori Yamaguchi, Noriyuki Matsukawa, Kohsuke Kudo, Niki Udo, Yasuo Kawata, Masaaki Matsushima, Toru Shirai, Tomoki Amemiya, Makoto Sasaki, Yoshitaka Bito, Hisaaki Ochi, Ryota Sato, Ichiro Yabe
Publikováno v:
Alzheimer's & Dementia. 16
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d9b3d21dba7cf3d67bbb64c6a22e7f2
https://doi.org/10.1002/alz.040064
https://doi.org/10.1002/alz.040064
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
https://doi.org/10.1016/j.jmr.2017.12.011