发明授权
- 专利标题: Antenna system and magnetic resonance imaging apparatus
- 专利标题(中): 天线系统和磁共振成像装置
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申请号: US12702666申请日: 2010-02-09
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公开(公告)号: US08648597B2公开(公告)日: 2014-02-11
- 发明人: Hideta Habara , Yoshitaka Bito , Hisaaki Ochi , Yoshihisa Soutome , Masayoshi Dohata , Tetsuhiko Takahashi , Hiroyuki Takeuchi
- 申请人: Hideta Habara , Yoshitaka Bito , Hisaaki Ochi , Yoshihisa Soutome , Masayoshi Dohata , Tetsuhiko Takahashi , Hiroyuki Takeuchi
- 申请人地址: JP Tokyo
- 专利权人: Hitachi Medical Corporation
- 当前专利权人: Hitachi Medical Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Mattingly & Malur, PC
- 优先权: JP2009-089716 20090402
- 主分类号: G01R33/34
- IPC分类号: G01R33/34
摘要:
An RF coil is provided with a hollow-shaped outer conductive element and strip-shaped conductive elements disposed along the outer conductive element in the axial direction. The strip-shaped conductive elements are disposed with uneven intervals to secure an internal space at a position where the strip-shaped conductive elements are not disposed. In order to obtain uniform sensitivity at the center section of the RF coil, the strip-shaped conductive elements and the outer conductive element are electrically connected via capacitors of which capacitances are adjusted so that a magnetic field component perpendicular to the center axis should be generated at a desired resonance frequency, and the strip-shaped conductive elements are axisymmetrically disposed with respect to the center axis of the outer conductive element. As a result, a comfortable examination space in a tunnel type MRI apparatus is achieved without increasing the manufacturing cost of the MRI apparatus.
公开/授权文献
- US20100253347A1 ANTENNA SYSTEM AND MAGNETIC RESONANCE IMAGING APPARATUS 公开/授权日:2010-10-07
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