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Method for correcting inhomogeneities of the static magnetic field, particularly of the static magnetic field generated by the magnetic structure of a machine for acquiring mri images
Method for correcting inhomogeneities of the static magnetic field, particularly of the static magnetic field generated by the magnetic structure of a machine for acquiring mri images
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机译：校正静磁场，特别是由用于获取mri图像的机器的磁结构产生的静磁场的不均匀性的方法
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摘要
Method for correcting inhomogeneities of the static magnetic field particularly of the static magnetic field generated by the magnetic structure of a machine for acquiring nuclear magnetic resonance images provides to determine the number, the position and the magnetic moment of dipoles compensating inhomogeneities of the magnetic field to be positioned on a positioning grid such to minimize a function wherein even the total magnetic moment of compensation dipoles provided for compensating the magnetic field inhomogeneity is minimized in addition to minimizing said certain norm of the difference between the inhomogeneity vector of each magnetic field components and the linear combination of effect vectors corresponding to said magnetic field component of compensation dipoles.
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