FIGURE 2:

Representative examples of knee images (coronal proton-density weighted fast spin echo sequence, PD-FSE scanned on a GE 3T Premier) obtained using the different reconstruction methods at acceleration rate R = 3. Compared to the traditional method with a combination of compressed sensing and parallel imaging (CS-PI), the sampling-augmented neural network with incoherent structure (SANTIS) for MR image reconstruction provided improved removal of aliasing artifacts in the bone and cartilage and greater preservation of sharp tissue details. SANTIS reconstruction required 0.06 s/slice, compared to 2.2 s/slice for CS-PI. SSIM: structural similarity index; nRMSE: normalized root mean squared error. Images courtesy Dr. Fang Liu, University of Wisconsin, Madison, WI.