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B0 distortion and Nyquist ghost results. Sample nDWIs are shown for all three sites of the SPINS study (one in each column). The top row indicates the B0 distortion results per image, with measurements overlaid on images which are scaled to emphasize the background; the Nyquist ghosting of MRC is evident. The bottom row indicates the Nyquist ghosting metric results per image, while demonstrating the localization of the automated background ROIs used to compute RatioNyq.
