Fig. 2

Example reconstructions of a computer simulated cardiac-contraction phantom. Using full data sampling (top row) and rate-4 undersampling with BLOSM (middle row) and zero-padding (bottom row), reconstructed magnitude (a,c,d,g,h) and phase (b,e,f,i,j) images with displacement encoding applied in the x direction at end-systole are shown. Fully-sampled data reconstructed with NUFFT (a,b), undersampled data reconstructed using BLOSM (c,e), and undersampled data reconstructed using zero-padding NUFFT (g,i) are shown in different rows. Difference images (d,f,h,j) computed by subtracting reconstructed images from fully-sampled images are also shown (difference amplified by 5 and 50 times for magnitude and phase images, respectively, for display purposes). BLOSM reduced error as compared to zero padding compared to the fully-sampled images