To improve B0 magnetic field homogeneity and minimize interferences on RF coils, local shimming coils with a few channel number can be applied. In this study, we designed and constructed a 5-channel local B0 shimming coil for the rat brain. There was a marginal SNR loss within 5% after converting the local shimming coil into a 3-channel RF coil. The reduction of B0 inhomogeneity for the rat brain with respect to the basic set was about 34%. A large portion of the distortion in EPI images was recovered and some image artifacts were eliminated after using the local shimming coil.
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