Fig. 6.

Test subjects with erroneous predictions. Axial slices illustrating errors associated with abnormalities such as a colostomy and Hartman’s pouch (top), enteric contrast within the colon (middle), and ascites with pneumoperitoneum (bottom). In the first subject (top), the ostomy bag is erroneously segmented and assigned a longitude corresponding to colon, while the small bowel near the Hartman’s pouch is excluded from the segmentation. In the second subject (middle), the colon contains enteric contrast, rather than feces as usual, and is erroneously excluded from the segmentation. In the third subject (bottom), ascites and pneumoperitoneum outside of the bowel are erroneously included in the segmentation