Title:
HIGH-FREQUENCY COIL AND MAGNETIC RESONANCE IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/012201
Kind Code:
A1
Abstract:
The present invention provides a technique that makes it possible to adjust resonance frequency without sacrificing test space in a high-frequency coil of a of a tunnel-type MRI apparatus. The present invention provides a high-frequency coil of a tunnel-type MRI apparatus that forms a resonant loop for determining the resonance frequency of the high-frequency coil from a high-frequency shield and a coil pattern, the tunnel-type MRI apparatus being equipped with a cylindrical high-frequency shield, a coil pattern placed on a cylindrical virtual plane having the same central axis as the high-frequency shield, and a frequency adjustment unit. The frequency adjustment unit is placed between the high-frequency shield and the coil pattern so as to be able to adjust the coupling capacitance therebetween, thereby making it possible to adjust the resonance frequency of the resonant loop.
Inventors:
IWASAWA KOHJIRO (JP)
SOUTOME YOSHIHISA (JP)
OTAKE YOSUKE (JP)
OCHI HISAAKI (JP)
SOUTOME YOSHIHISA (JP)
OTAKE YOSUKE (JP)
OCHI HISAAKI (JP)
Application Number:
PCT/JP2014/069117
Publication Date:
January 29, 2015
Filing Date:
July 17, 2014
Export Citation:
Assignee:
HITACHI MEDICAL CORP (JP)
International Classes:
A61B5/055; G01R33/34; H01F5/00
Domestic Patent References:
| WO2013065480A1 | 2013-05-10 | |||
| WO2013008116A1 | 2013-01-17 |
Foreign References:
| JPH04170939A | 1992-06-18 |
Attorney, Agent or Firm:
Sannozaka Patent Law Firm (JP)
Patent business corporation The Sanno hill patent firm (JP)
Patent business corporation The Sanno hill patent firm (JP)
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