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A small tip-angle 3D tailored RF slab-select pulse can reduce B1 field inhomogeneity by up to 30% in 3T MRI.
This work presents a small tip-angle 3D tailored RF slab-select pulse for reducing the B1 field inhomogeneity at 3T. The compensated slice profile was determined from a B1 inhomogeneity map. SNR improvement and degree of artifact reduction were evaluated in a NiCl2 doped phantom and human brains. The technique was found to reduce inhomogeneities as large as 30% of the peak image magnitude in all three spatial directions in the brain using a standard head coil.
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Saekho et al. (2005) studied this question.
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