Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
HIGH FREQUENCY COIL AND MAGNETIC RESONANCE IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/033887
Kind Code:
A1
Abstract:
Provided is a multichannel array coil to be used as a radio frequency (RF) coil in a magnetic resonance imaging (MRI) device, wherein, even in a case where magnetic coupling arises between sub-coils, an impact from the current flowing to coupling partner sub-coils is suppressed, a desired sensitivity is maintained, and a drop in image quality is prevented. Thus, the sub-coils which form the multichannel array coil to be used as an RF coil in an MRI device are all connected to a signal processing circuit, such that even if magnetic coupling arises between such sub-coils, the phase difference between a rotational magnetic field which is generated due to the impact from the current flowing to the coupling partner sub-coils and a rotational magnetic field which is generated by the sub-coils is less than 90 degrees.

Inventors:
OTAKE, Yosuke (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
OCHI, Hisaaki (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
IWASAWA, Kohjiro (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
Application Number:
JP2016/074374
Publication Date:
March 02, 2017
Filing Date:
August 22, 2016
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HITACHI, LTD. (6-6 Marunouchi 1-chome, Chiyoda-ku Tokyo, 80, 〒1008280, JP)
International Classes:
A61B5/055; G01R33/3415
Domestic Patent References:
WO2012111433A12012-08-23
Foreign References:
JP2011505955A2011-03-03
JP2004081514A2004-03-18
JPH1052416A1998-02-24
JPH07265278A1995-10-17
JPH0654824A1994-03-01
JPH03188828A1991-08-16
JPH0323842A1991-01-31
Attorney, Agent or Firm:
SANNOZAKA PATENT LAW FIRM (4th Yasuda Building 9F, 26-2 Tsuruyacho 2-chome, Kanagawa-ku, Yokohama-sh, Kanagawa 35, 〒2210835, JP)
Download PDF: