Method of defining a magnetic field for an imaging volume
    2.
    发明公开
    Method of defining a magnetic field for an imaging volume 审中-公开
    Verfahren zur Bestimmung eines Magnetfeldesfürein Bildgebungsvolumen

    公开(公告)号:EP2511724A1

    公开(公告)日:2012-10-17

    申请号:EP12175576.3

    申请日:2009-06-25

    摘要: Disclosed herein is a method of defining a magnetic field for an imaging volume. The method comprises generating an initial model of a magnet assembly; estimating a magnetic field for the imaging volume based on the model; calculating deviation between the estimated magnetic field and a target magnetic field for the imaging volume; and updating the model to reduce the deviation by modifying the magnet assembly to produce a variety of magnetic field strengths that, in combination, produce substantially the target magnetic field in the imaging volume.

    摘要翻译: 本文公开了一种为成像体积定义磁场的方法。 该方法包括产生磁体组件的初始模型; 基于该模型估计成像体积的磁场; 计算用于成像体积的估计磁场和目标磁场之间的偏差; 并且通过修改磁体组件来产生各种磁场强度来更新模型以减小偏差,其组合地在成像体积中基本上产生目标磁场。