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A method of RF inhomogeneity correction in MR imaging

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Abstract

A direct postprocessing method for correcting RF inhomogeneity in MR imaging is proposed. First, two images with different flip-angles of ψ and 2ψ are obtained. Next, the spatial distribution maps of the sensitivity of the surface coil and theB 1 field intensity are produced by employing those images. Finally, the correction of the MR image is achieved, dividing the original image by distribution maps of the coil sensitivity and theB 1 field intensity. The method was applied to image obtained by a gradient echo sequence and the corrected image is presented.

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Authors and Affiliations

  1. Graduate School of Medicine, University of Tokyo, 7-3-1 Hongou, Bunkyouku, 113, Tokyo, Japan

    Hiroaki Mihara, Norio Iriguchi & Shogo Ueno

Authors
  1. Hiroaki Mihara
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  2. Norio Iriguchi
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  3. Shogo Ueno
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Mihara, H., Iriguchi, N. & Ueno, S. A method of RF inhomogeneity correction in MR imaging. MAGMA 7, 115–120 (1998). https://doi.org/10.1007/BF02592235

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  • DOI: https://doi.org/10.1007/BF02592235

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