Comparisons of representative initial DL auto-segmentation (yellow), ACR (red), and ground truth (green) contours for the small bowel, large bowel, pancreas, duodenum, and stomach on MRL data. Images shown are rescaled for better display (they do not reflect their original sizes). Abbreviations: ACR = automatic contour refinement; DL = deep learning; MRL = magnetic resonance imaging and linear accelerator.