Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Tadashi Moriya"'
Publikováno v:
2018 IEEE International Ultrasonics Symposium (IUS).
We have studied the C-mode and B-mode imaging using high-frequency ultrasonic waves through a thin fiber for direct observation of the microscopic image of tissue. In the former experiments, the C-mode images of soft tissues (kidney and stomach) usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39dadb0d5d177dbe1533d2266ce9a93b
https://doi.org/10.1109/ultsym.2018.8580053
https://doi.org/10.1109/ultsym.2018.8580053
Publikováno v:
Sensors & Transducers, Vol 184, Iss 1, Pp 108-115 (2015)
The primary focus of this paper is the development of an ultra-miniature ultrasound motor for use in the human blood vessel. Since the size of the drive source for rotating the atherectomy device and intravascular ultrasonography system are large cur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::a6d9b1fa2764693f3ff4517b766a560a
http://www.sensorsportal.com/HTML/DIGEST/january_2015/Vol_184/P_2592.pdf
http://www.sensorsportal.com/HTML/DIGEST/january_2015/Vol_184/P_2592.pdf
Publikováno v:
2017 IEEE International Ultrasonics Symposium (IUS).
We have studied C-mode and B-mode imaging using high-frequency ultrasonic waves through a thin fiber for direct observation of the microscopic image of tissue. We reported previously that the C-mode images of the tissue on the glass and B-mode image
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fd7f1c8e89a244a67e02c0730e9a7e0
https://doi.org/10.1109/ultsym.2017.8091982
https://doi.org/10.1109/ultsym.2017.8091982
Publikováno v:
2017 IEEE International Ultrasonics Symposium (IUS).
As an application of ultrasonic motors becomes popular, an ultrasound transmission line (UTL) is required to be efficient. Actually, we are developing a puncture type ultrasonic microscope [1] using a miniature ultrasonic motor for scanning. We have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a590c020ac5c0349c5383191c23eb3e9
https://doi.org/10.1109/ultsym.2017.8092285
https://doi.org/10.1109/ultsym.2017.8092285
Publikováno v:
2016 IEEE International Ultrasonics Symposium (IUS).
We are aiming to develop a puncture-type ultrasound microscope by which less invasive settled diagnosis can be executed. To provide in vivo high-resolution imaging of a tumor, we need to scan high frequency ultrasound by rotating an acoustic mirror o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa76584cbc492103228f96ea008c53bd
https://doi.org/10.1109/ultsym.2016.7728588
https://doi.org/10.1109/ultsym.2016.7728588
Autor:
Norio Tagawa, Kouichi Itoh, Nobuyuki Taniguchi, Masasumi Yoshizawa, Hideki Kumagai, Masayuki Tanabe, Takasuke Irie, Taku Yokoyama, Tadashi Moriya, Takashi Iijima
Publikováno v:
Journal of Medical Ultrasonics. 38:119-127
This paper describes an investigation into direct observation of microscopic images of tissue using a thin acoustic wave guide. First, the characteristics of the ultrasonic wave propagated in a fused quartz fiber were measured using the reflection me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20820325d4e8951877a10c46bff76c65
https://doi.org/10.1007/s10396-011-0302-2
https://doi.org/10.1007/s10396-011-0302-2
Publikováno v:
Japanese Journal of Applied Physics. 47:4176-4179
In this paper, we propose an imaging method for acoustic impedance difference for puncture needle-type ultrasonography. The difference in acoustic impedance between benign and malignant tissues will provide valuable diagnostic information. In this ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::476e989dd5544c7299fe597f15d36b85
https://doi.org/10.1143/jjap.47.4176
https://doi.org/10.1143/jjap.47.4176
Publikováno v:
Japanese Journal of Applied Physics. 47:4271-4275
A traveling wave miniature ultrasonic motor has been developed using a helical coiled waveguide as a stator, and it has been applied to an intravascular ultrasound (IVUS) probe. In this motor, the elliptical motion of the surface particle due to flex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::241490c723697c22a3350632b96e7082
https://doi.org/10.1143/jjap.47.4271
https://doi.org/10.1143/jjap.47.4271
Publikováno v:
Japanese Journal of Applied Physics. 47:4149-4154
An inline transmitter/receiver system for intravascular ultrasound for realizing fine imaging with high resolution and high signal-to-noise ratio (SNR) is newly proposed. This system can be used for tissue harmonic imaging using pulse compression. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::425081e653696abfb3b98ea900e7eb8e
https://doi.org/10.1143/jjap.47.4149
https://doi.org/10.1143/jjap.47.4149
Publikováno v:
Japanese Journal of Applied Physics. 46:4805-4808
Intravascular ultrasound (IVUS) plays an important role for the detection of arteriosclerosis, which causes the ischemic heart disease. In mechanical scanning-type IVUS, it is necessary to rotate a transducer or a reflecting mirror. A method that inv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::355cae986cc6976d431c3328f5c6e995
https://doi.org/10.1143/jjap.46.4805
https://doi.org/10.1143/jjap.46.4805