Methods and devices for RF coils in MRI systems

    公开(公告)号:US10101417B2

    公开(公告)日:2018-10-16

    申请号:US14817138

    申请日:2015-08-03

    IPC分类号: G01V3/00 G01R33/36

    摘要: Various methods and systems are provided for detecting an unplugged radio frequency (RF) coil in a magnetic resonance imaging (MRI) system. In one embodiment, a device for an RF coil comprises an alert generator, a power source, and a field-sensitive switch including an open state and a closed state, wherein the field-sensitive switch switches from the open state to the closed state responsive to sensing a magnetic field with a strength above a threshold, and wherein the field-sensitive switch in the closed state electrically couples the alert generator and the power source. In this way, an alert may be generated to notify an operator of an MRI apparatus of an unplugged RF coil.

    METHODS AND DEVICES FOR RF COILS IN MRI SYSTEMS
    8.
    发明申请
    METHODS AND DEVICES FOR RF COILS IN MRI SYSTEMS 审中-公开
    MRI系统中RF线圈的方法和设备

    公开(公告)号:US20170038443A1

    公开(公告)日:2017-02-09

    申请号:US14817138

    申请日:2015-08-03

    IPC分类号: G01R33/36 G01R33/56

    CPC分类号: G01R33/36 G01R33/3664

    摘要: Various methods and systems are provided for detecting an unplugged radio frequency (RF) coil in a magnetic resonance imaging (MRI) system. In one embodiment, a device for an RF coil comprises an alert generator, a power source, and a field-sensitive switch including an open state and a closed state, wherein the field-sensitive switch switches from the open state to the closed state responsive to sensing a magnetic field with a strength above a threshold, and wherein the field-sensitive switch in the closed state electrically couples the alert generator and the power source. In this way, an alert may be generated to notify an operator of an MRI apparatus of an unplugged RF coil.

    摘要翻译: 提供用于检测磁共振成像(MRI)系统中的未插拔射频(RF)线圈的各种方法和系统。 在一个实施例中,用于RF线圈的装置包括报警发生器,电源和包括打开状态和关闭状态的场敏感开关,其中所述场敏感开关从打开状态切换到关闭状态 以感测具有高于阈值的强度的磁场,并且其中所述关闭状态下的所述场敏感开关将警报发生器和电源电耦合。 以这种方式,可以产生警报以向MRI设备的操作者通知未插拔的RF线圈。