Removal of local field gradient artifacts in T2*-weighted images at high fields by gradient-echo slice excitation profile imaging.

@article{Yang1998RemovalOL,
  title={Removal of local field gradient artifacts in T2*-weighted images at high fields by gradient-echo slice excitation profile imaging.},
  author={Qing X. Yang and Gerald D Williams and Roger Demeure and Timothy J. Mosher and Michael B. Smith},
  journal={Magnetic resonance in medicine},
  year={1998},
  volume={39 3},
  pages={402-9}
}
Development of high magnetic field MRI techniques is hampered by the significant artifacts produced by B0 field inhomogeneities in the excited slices. A technique, gradient-echo slice excitation profile imaging (GESEPI), is presented for recovering the signal lost caused by intravoxel phase dispersion in T2*-weighted images. This technique superimposes an incremental gradient offset on the slice refocusing gradient to sample k-space over the full range of spatial frequencies of the excitation… CONTINUE READING

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