Sparse Constrained Reconstruction for Accelerating Parallel Imaging Based on Variable Splitting Method

Figure 3

Reconstructed images from noisy undersampled MR data for the simulated parallel MRI, where the undersampling rate (named AF) is 4.

(a) Reconstruction Image by GEM

(b) Reconstruction Image by CG

(c) Sparse Constrained Reconstruction Image

(d) Difference profile

(e) Difference profile

(f) Difference profile