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公开(公告)号:US20190004137A1
公开(公告)日:2019-01-03
申请号:US15635898
申请日:2017-06-28
IPC分类号: G01R33/565
CPC分类号: G01R33/56509 , G01R33/56316 , G01R33/56341 , G01R33/56572
摘要: The present disclosure provides a method and system for correcting errors caused by non-linearities in a gradient field profile of a gradient coil in a magnetic resonance imaging (MRI) system. The method includes obtaining a non-linearity tensor at each voxel within the imaging space using a computer model of the gradient coil; correcting motion sensitive encoding using the non-linearity tensor; and generating a corrected image using the corrected motion sensitive encoding.