Fig. 17
Crohn’s disease in a 20-year-old woman in clinical remission after effective medical treatment. Scheduled sonographic exam: a transverse sonographic scan of the caecum shows thickening of the wall with preserved stratification. b Measurement of bowel wall vascularity after second generation contrast agent injection in a manually defined ROI localised in the ileal wall. The percentage of enhancement increase in wall brightness was 100%. The patient did not change the treatment and 6 months later required hospitalisation due to an enterocutaneous fistula (see Fig. 12). There is a correlation between residual enhancement after treatment and an unfavourable outcome