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    ELECTRIC PROPERTIES TOMOGRAPHY IMAGING METHOD AND SYSTEM
    1.
    发明申请
    ELECTRIC PROPERTIES TOMOGRAPHY IMAGING METHOD AND SYSTEM 有权
    电性质地图成像方法与系统

    公开(公告)号：US20120306493A1

    公开(公告)日：2012-12-06

    申请号：US13522367

    申请日：2011-01-13

    申请人： Tobias Ratko Voigt ,  Ulrich Katscher ,  Thomas Hendrik Rozijn ,  Paul Royston Harvey ,  Hanno Homann ,  Christian Findeklee ,  Eberhard Sebastian Hansis

    发明人： Tobias Ratko Voigt ,  Ulrich Katscher ,  Thomas Hendrik Rozijn ,  Paul Royston Harvey ,  Hanno Homann ,  Christian Findeklee ,  Eberhard Sebastian Hansis

    IPC分类号： G01R33/54 ,  G01R33/341

    CPC分类号： G01R33/48 ,  A61B5/0536 ,  A61B5/055 ,  G01R33/246 ,  G01R33/443

    摘要： The invention relates to a magnetic resonance method of electric properties tomography imaging of an object, the method comprising: applying an excitation RF field to the object via a coil at a first spatial coil position (402), acquiring resulting magnetic resonance signals via a receiving channel from the object, determining from the acquired magnetic resonance signals a first phase distribution and a first amplitude of a given magnetic field component of the excitation RF field of the coil at the first coil position (402), repeating these steps with a coil at a second different spatial coil position (404), to obtain a second phase distribution, determining a phase difference between the first and second phase distribution, determining a first and a second complex permittivity of the object, the first complex permittivity comprising the first amplitude of the given magnetic field component and the second complex permittivity comprising the second amplitude of the given magnetic field component and the phase difference, equating the first complex permittivity and the second complex permittivity for receiving a final equation and determining from the final equation a phase of the given magnetic field component for the first coil position (402).

    摘要翻译： 本发明涉及一种物体的电性能断层摄影成像的磁共振方法，该方法包括：经由第一空间线圈位置（402）的线圈将激发RF场施加到物体，经由接收器获得产生的磁共振信号 从所述对象中确定所述线圈在所述第一线圈位置（402）处的所述磁共振信号的第一相位分布和所述线圈的激励RF场的给定磁场分量的第一幅度，并将线圈重复这些步骤 第二不同的空间线圈位置（404），以获得第二相位分布，确定所述第一和第二相位分布之间的相位差，确定所述对象的第一和第二复介电常数，所述第一复介电常数包括所述第一和第二相位分布的第一幅度 给定的磁场分量和包括给定磁场的第二振幅的第二复数介电常数 分量和相位差，将第一复数介电常数和第二复数介电常数相等以接收最终方程，并从最终方程确定用于第一线圈位置（402）的给定磁场分量的相位。