Title:
ARRAY COIL AND MAGNETIC RESONANCE IMAGING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/087541
Kind Code:
A1
Abstract:
This high-frequency array coil is designed for use in an MRI apparatus and provided with a plurality of coil units having a plurality of RF reception coils, each of which is provided with a conductor loop and adjusted to receive magnetic resonance signals. The high-frequency array coil is further provided with: an extended conductor comprising a part of the conductor loop of each of the RF reception coils of the plurality of coil units and a conductor connecting said loop parts; and an extended conductor control circuit for adjusting the reception frequency of the extended conductor. The extended conductor is placed on an object to be imaged in a helically wound state, and the direction of a magnetic field detected by the extended conductor intersects with the direction of a magnetic field detected by the RF reception coils, which constitute the coil units. This makes it possible to enhance the detection efficiency of the RF coils and acquire a high SNR image.
Inventors:
OTAKE YOSUKE (JP)
IWASAWA KOHJIRO (JP)
DOHATA MASAYOSHI (JP)
OCHI HISAAKI (JP)
SHIMODA TAKAHIDE (JP)
IWASAWA KOHJIRO (JP)
DOHATA MASAYOSHI (JP)
OCHI HISAAKI (JP)
SHIMODA TAKAHIDE (JP)
Application Number:
PCT/JP2018/031204
Publication Date:
May 09, 2019
Filing Date:
August 23, 2018
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
A61B5/055
Domestic Patent References:
| WO2007129429A1 | 2007-11-15 |
Foreign References:
| US20120306494A1 | 2012-12-06 | |||
| US20130241556A1 | 2013-09-19 | |||
| JP2009022483A | 2009-02-05 | |||
| JP4733177B2 | 2011-07-27 |
Attorney, Agent or Firm:
SANNOZAKA PATENT LAW FIRM (JP)
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