“…The obtained MRIs were then input into a DL auto-segmentation research tool (Admire, Elekta Inc), previously developed based on a 3D deep CNN architecture (a modified 3D-ResUNet) 22 , 23 to generate auto-segmented contours of the small bowel, large bowel, combined bowels, pancreas, duodenum, and stomach. To assess contour accuracy, the auto-segmented contours were compared with the ground truth contours delineated manually by an experienced researcher and independently verified by 2 radiation oncologists.…”