Gradient coil apparatus and method of micro-imaging
    4.
    发明授权
    Gradient coil apparatus and method of micro-imaging 失效
    梯度线圈装置及微成像方法

    公开(公告)号:US06563315B1

    公开(公告)日:2003-05-13

    申请号:US09681796

    申请日:2001-06-06

    IPC分类号: G01V300

    CPC分类号: G01R33/385 G01R33/5604

    摘要: A magnetic resonance imaging (MRI) apparatus and method for micro-imaging is provided. The apparatus comprises an MRI system having a gradient coil positioned within a bore of a magnet that impresses a polarizing magnetic field. The apparatus also includes an RF transceiver system, having an RF switch controlled by a pulse module, to transmit RF signals to an RF coil. Upon selection of a micro-imaging scan, a computer activates a micro-imaging gradient coil positioned within the bore of the magnet. The micro-imaging gradient coils are assembled such that, upon energization, substantially linear magnetic field gradients are created along three axes in a localized FOV adjacent to the micro-imaging gradient coils.

    摘要翻译: 提供了用于微成像的磁共振成像(MRI)装置和方法。 该装置包括具有定位在磁体的孔内的梯度线圈的MRI系统,其施加极化磁场。 该装置还包括具有由脉冲模块控制的RF开关的RF收发器系统,以将RF信号发射到RF线圈。 在选择微成像扫描时,计算机激活位于磁体的孔内的微成像梯度线圈。 微成像梯度线圈被组装成使得在通电时,在与微成像梯度线圈相邻的局部FOV中沿三个轴产生基本上线性的磁场梯度。