Method for correcting gradient nonuniformity in gradient motion sensitive imaging applications

摘要

The present disclosure provides a method and system for correcting errors caused by nonlinearities in a gradient field profile of a gradient coil in a magnetic resonance imaging system, MRI. The method includes obtaining a nonlinearity tensor at each voxel within the imaging space by a computing model of gradient coils; Correcting the motion-sensitive coding by means of the non-linearity tensor; and generating a corrected image using the corrected motion sensitive encoding.