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    APPARATUS AND METHOD FOR COMBINED USE OF VARIABLE FLIP ANGLES AND CENTRIC PHASE ENCODING IN HYPERPOLARIZED 13C IMAGING
    2.
    发明申请
    APPARATUS AND METHOD FOR COMBINED USE OF VARIABLE FLIP ANGLES AND CENTRIC PHASE ENCODING IN HYPERPOLARIZED 13C IMAGING 审中-公开
    用于组合使用可变叶片角度的中心相位编码的方法和方法

    公开(公告)号：US20090060841A1

    公开(公告)日：2009-03-05

    申请号：US12045177

    申请日：2008-03-10

    申请人： Yi-Fen Yen ,  Ralph E. Hurd ,  Susan J. Kohler

    发明人： Yi-Fen Yen ,  Ralph E. Hurd ,  Susan J. Kohler

    IPC分类号： A61B5/055

    CPC分类号： A61B5/055 ,  G01R33/4818 ,  G01R33/485 ,  G01R33/5601 ,  G01R33/5616

    摘要： A system and method for MR imaging includes a magnetic resonance imaging (MRI) system having a plurality of gradient coils positioned about a bore of a magnet, and an RF transceiver system and an RF switch controlled by a pulse module to transmit RF signals to an RF coil assembly to acquire MR images. The apparatus further includes a controller programmed to determine a variable flip angle (VFA) sequence to excite a hyperpolarized material in a subject and to determine a delay period during which application of the VFA sequence is delayed after injection of a hyperpolarized contrast agent. The delay period is based on dynamic data of the hyperpolarized material acquired from the subject. The controller is also programmed to cause application of the VFA sequence to excite the hyperpolarized material in the subject and to acquire MR data from the hyperpolarized material using an isotropic centric phase encoding (iCPE) technique.

    摘要翻译： 用于MR成像的系统和方法包括具有围绕磁体的孔定位的多个梯度线圈的磁共振成像（MRI）系统，以及RF收发器系统和由脉冲模块控制的RF开关以将RF信号传输到 RF线圈组件来获取MR图像。 该装置还包括被编程为确定可变翻转角（VFA）序列以激发受试者中的超极化材料并且确定在注射超极化造影剂之后VFA序列的施用被延迟的延迟期间的控制器。 延迟期是基于从受试者获得的超极化材料的动态数据。 控制器也被编程为使得VFA序列的应用激发受试者中的超极化材料并且使用各向同性中心相编码（iCPE）技术从超极化材料获取MR数据。