Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Kenichi Kawabata"'
Autor:
Wu Wenjing, Atsuro Suzuki, Kenichi Kawabata, Yushi Tsubota, Takahide Terada, Kazuhiro Yamanaka, Yosuke Otake
Publikováno v:
Ultrasound in Medicine & Biology. 45:2554-2567
To evaluate the quantitative accuracy of the measured speed of sound in ultrasound computed tomography for breast imaging, it is necessary to use a phantom with inclusions whose speed of sound is known. Accordingly, a phantom with known-speed-of-soun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::420ac2ff82edd04a9f4b60493857fe78
https://doi.org/10.1016/j.ultrasmedbio.2019.05.011
https://doi.org/10.1016/j.ultrasmedbio.2019.05.011
Autor:
Mutsumi Nishida, Megumi Satoh, Fumi Kato, Kenichi Kawabata, Yushi Tsubota, Takahide Terada, Hiroko Yamashita, Atsuro Suzuki
Publikováno v:
Medical Imaging 2021: Ultrasonic Imaging and Tomography.
In full waveform inversion (FWI) for ultrasound computed tomography (CT), choosing the right sound source is essential for generating high-resolution images. We developed an optimized source estimation method for FWI to efficiently reduce the value o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7ed387a65f76dd7e528c52ec2a6dca4
https://doi.org/10.1117/12.2580491
https://doi.org/10.1117/12.2580491
Autor:
Hiroko Yamashita, Yushi Tsubota, Kenichi Kawabata, Takahide Terada, Fumi Kato, Atsuro Suzuki, Wu Wenjing, Megumi Satoh, Mutsumi Nishida, Kazuhiro Yamanaka
Publikováno v:
Medical Imaging 2020: Ultrasonic Imaging and Tomography.
We are performing clinical studies on breast cancer examinations at Hokkaido University Hospital with an ultrasound computed tomography (USCT) system. Our studies have revealed that some reflection images exhibit intensity inhomogeneity because ultra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e12012f942563d69dafd22a967266be9
https://doi.org/10.1117/12.2548555
https://doi.org/10.1117/12.2548555
Autor:
Yushi Tsubota, Kazuhiro Yamanaka, Kenichi Kawabata, Takahide Terada, Wu Wenjing, Atsuro Suzuki
Publikováno v:
Medical Imaging 2020: Ultrasonic Imaging and Tomography.
The performance of a reconstruction method in ultrasound computed tomography (CT) ideally should be evaluated using various kinds of phantoms at a wide range of speeds of sound when inclusions are made. However, generating real phantoms is more time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5d756fdf428e98c66f5d39238e12fc7
https://doi.org/10.1117/12.2548382
https://doi.org/10.1117/12.2548382
Autor:
Kenichi Kawabata, Kazuhiro Yamanaka, Takashi Maruoka, Hideki Yoshikawa, Reiko Ashida, Kazuhiro Katayama, Tatsuya Ioka, Sachiko Tanaka
Publikováno v:
Ultrasound in Medicine & Biology. 44:1031-1043
Bubble-seeded histotripsy (BSH) is a newly developed ultrasound-based mechanical fractionation technique using locally injected phase change nanodroplets (PCNDs) as sensitizers. The PCNDs are a kind of microbubble precursor compressed into submicron-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26b38ec0557ed80b18da44fa2048fd52
https://doi.org/10.1016/j.ultrasmedbio.2018.01.023
https://doi.org/10.1016/j.ultrasmedbio.2018.01.023
Autor:
Nobutaka Abe, Nobuhiro Nishiyama, Jun Okamoto, Hiroshi Ishii, Yoshihiro Muragaki, Masanori Maeda, Hiroshi Iseki, Nakamoto Hidekazu, Kenichi Kawabata, Shin-ichiro Umemura, Shin Yoshizawa, Kazunori Kataoka
Publikováno v:
Ultrasound Med. Biol.. 43(No. 10):2295-2301
Sonodynamic therapy (SDT) is currently considered as one of the promising minimally invasive treatment options for solid cancers. SDT is based on the combined use of a sonosensitizer drug and high-intensity focused ultrasound (HIFU) to produce cytoto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0775a9ae43726b6c608da9343d54c5d4
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100752146
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100752146
Autor:
Manabu, Uematsu, Kazuto, Nakamura, Takamitsu, Nakamura, Yosuke, Watanabe, Toru, Yoshizaki, Juntaro, Deyama, Tsuyoshi, Kobayashi, Daisuke, Fujioka, Yukio, Saito, Kenichi, Kawabata, Jun-Ei, Obata, Kiyotaka, Kugiyama
Publikováno v:
Journal of cardiac failure. 26(8)
Although animal studies showed that Follistatin-like 1 (FSTL1) exerts cardioprotective effects against ischemic injury, little is known in humans. We examined whether FSTL1 is secreted in an infarcted myocardium and whether its production is associat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::2c7f7841b6ed8df3a3908ce46775e5ab
https://pubmed.ncbi.nlm.nih.gov/32470377
https://pubmed.ncbi.nlm.nih.gov/32470377
Autor:
Shin Yoshizawa, Kenichi Kawabata, Taku Yamamoto, Tomohiko Tanaka, Hideki Yoshikawa, Shin-ichiro Umemura
Publikováno v:
Ultrasound in medicinebiology. 46(3)
Ultrasound vascularity imaging provides important information for differential diagnosis of tumors. Peak-hold (PH) is a useful technique for precisely imaging small vessels by selecting a maximum brightness in each pixel through the frames obtained s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84b2a0498de0561d86a62a3ae9a423f3
https://pubmed.ncbi.nlm.nih.gov/31837889
https://pubmed.ncbi.nlm.nih.gov/31837889
Autor:
Kazuhiro Yamanaka, Yushi Tsubota, Atsuro Suzuki, Kenichi Kawabata, Wu Wenjing, Takahide Terada
Publikováno v:
Medical Imaging 2019: Ultrasonic Imaging and Tomography.
For breast cancer imaging by ultrasound computed tomography (CT) without dependence on patient breast size, we previously developed a high-sensitivity scan method in which a virtual fan-beam (vfan-beam) is generated from ultrasound waves emitted from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::560dff1c6bb1153f01e524a6721c1024
https://doi.org/10.1117/12.2512639
https://doi.org/10.1117/12.2512639
Autor:
Kenichi Kawabata, Yushi Tsubota, Atsuro Suzuki, Wu Wenjing, Takahide Terada, Fumi Kato, Hiroko Yamashita, Megumi Satoh, Mutsumi Nishida, Kazuhiro Yamanaka
Publikováno v:
Medical Imaging 2019: Ultrasonic Imaging and Tomography.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9aa9d38592e08fcbf887262cc9e9f0ec
https://doi.org/10.1117/12.2506954
https://doi.org/10.1117/12.2506954