Fig. 7.

Motion correction with rigid k-t PCA/SLR, nonrigid k-t PCA/SLR and k-t FOCUSS image reconstruction results for patients. The top 3 rows are the reconstructed images at one frame and the bottom 3 rows are the x-t profiles for the dashed line pointed in the frames. Comparisons are made among the proposed motion corrected rigid k-t PCA (column a), rigid k-t SLR (column b), as well as nonrigid k-t PCA (column c), nonrigid k-t SLR (column d) and k-t FOCUSS (column e). Red arrows indicate distortion and blurring artifacts