利索-全球专利检索

  1. 登录
  2. 注册
发明授权
CN106646298B 一种体线圈及磁共振成像系统 有权

一种体线圈及磁共振成像系统
摘要：
本发明公开了一种磁共振成像系统的体线圈和磁共振成像系统。其中，体线圈包括主体和调谐失谐电路；调谐失谐电路连接在所述主体上，用于利用一控制信号对所述主体进行调谐失谐控制；调谐失谐电路包括控制信号接口、开关二极管单元和交流直流变换电路；控制信号接口用于接收所述控制信号；开关二极管单元为至少1个，用于分别串联在所述体线圈主体的至少一个天线腿上和/或至少一个端环上；所述交流直流变换电路包括一整流电路，用于将磁共振成像系统中的输入射频发射信号的功率变换为一直流电流，所述直流电流用于为所述开关二极管单元的导通提供直流电流。所述体线圈能降低直流电源的成本，并解决二极管的发热问题。
摘要（英）：

A body coil for an MRI system has a conductor management and a tuning/detuning circuit. The tuning/detuning circuit is connected to the conductor management, and used to subject the conductor management to tuning/detuning control by a control signal. The tuning/detuning circuit has a control signal interface, a switch diode unit and an AC/DC conversion circuit. The control signal interface receives the control signal. There is at least one switch diode unit, respectively series-connected on at least one antenna rod and/or at least one end ring of the body coil conductor management. The AC/DC conversion circuit has a rectifying circuit, for converting the power of an input RF emission signal in the MRI system to a DC current, the DC current being used to provide a DC current for the switch diode unit to be turned on. The body coil reduces the cost of a DC power supply, and this reduces heat generated by the diodes.

公开/授权文献
0/0