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Comparison of B0-mapping based distortion measurement with manual measurement in MR_dist (a, b) and MR_dist500 (c, d). Distortion values measured from the ΔB0 map were plotted against the reference provided by manual localization (a, c). The dashed line is the identity line. The difference between B0-based and reference distortion was also plotted (b, d). Each x represents one of N = 31 fiducials.
