发明申请
US20090230966A1 METHODS AND APPARATUSES FOR CONNECTING RECEIVE COILS IN MAGNETIC RESONANCE IMAGING SCANNERS 失效
用于在磁共振成像扫描仪中连接接收线圈的方法和装置

  • 专利标题: METHODS AND APPARATUSES FOR CONNECTING RECEIVE COILS IN MAGNETIC RESONANCE IMAGING SCANNERS
  • 专利标题(中): 用于在磁共振成像扫描仪中连接接收线圈的方法和装置
  • 申请号: US11720874
    申请日: 2005-12-05
  • 公开(公告)号: US20090230966A1
    公开(公告)日: 2009-09-17
  • 发明人: Gosta Ehnholm
  • 申请人: Gosta Ehnholm
  • 申请人地址: NL Eindhoven
  • 专利权人: KONINKLIJKE PHILIPS ELECTRONICS N.V.
  • 当前专利权人: KONINKLIJKE PHILIPS ELECTRONICS N.V.
  • 当前专利权人地址: NL Eindhoven
  • 国际申请: PCT/IB05/54052 WO 20051205
  • 主分类号: G01R33/3415
  • IPC分类号: G01R33/3415
METHODS AND APPARATUSES FOR CONNECTING RECEIVE COILS IN MAGNETIC RESONANCE IMAGING SCANNERS
摘要:
A coils array (40, 40′) including a plurality of coils (71, 72, 73) receives magnetic resonance signals from an examination region of a magnetic resonance imaging scanner (10). Each coil has mixing circuitry (74, 75, 76, 80, 81, 82) that frequency-shifts the received magnetic resonance signal to a selected transmission channel frequency. The coils array further includes combining circuitry (90) that combines the frequency-shifted magnetic resonance signals to produce an analog frequency domain multiplexed transmission signal output of the coils array. Receiver electronics (56, 56″) receive the analog frequency domain multiplexed transmission signal from the coils array. The receiver electronics include an analog-to-digital converter (164) that digitizes the analog frequency domain multiplexed transmission signal and digital signal processing circuitry (166) that processes the digital frequency domain multiplexed transmission signal to recover digitized signals corresponding to the magnetic resonance signals received by the plurality of coils.
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