Figure 6.

Cine MRI images for one representative patient with congenital heart disease, acquired with prospective undersampling of 13-fold. Reconstructed images are presented in peak systole and peak diastole for a reference breath-held balanced steady-state free precession sequence (BH-bSSFP, first column), the real-time radial sequence reconstructed with GRASP (82) (second column) and the residual 3D U-net (third column), as proposed in Ronneberger et al. (67). Images reconstructed with GRASP and the proposed residual 3D U-Net show spatial and temporal blurring, that could be a result of undersampling and incomplete motion correction.