Reordering for Improved Constrained Reconstruction from Undersampled k-Space Data

Figure 9

Result of the reordering method on multi-image brain DTI data. (a) Image of a single diffusion encoding direction reconstructed from full Fourier data. A line for comparison of pixel intensity profiles for different reconstructions is also shown. (b) Corresponding encoding direction reconstructed from 𝑅∼3 Fourier data, undersampled in variable density random fashion, using constrained reconstruction in (4) but without any reordering. (c) Corresponding direction reconstructed from the incomplete Fourier data using constrained reconstruction in (4) with reordering. (d) Comparison of intensity line profiles for images in Figures 9(a) and 9(b). (e) Comparison of intensity line profiles for images in Figures 9(a) and 9(c).

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