We determine the accuracy of our B1 correction method using a cylindrical digital phantom and a digital brain phantom. Comparing the B1 correction accuracy of each sample, the relative uncertainties of each T1 value were less than 5%, and when long TR, the accuracy of B1 correction was almost equal to short TR. In addition, our method enabled us to correct the slice direction accurately. The proposed method can correct B1 inhomogeneity with high accuracy to in-plane and slice direction without additional scanning
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