Assessment of stricturing Crohn's disease: Current clinical practice and future avenues

Figure 1 Examples of ileal strictures. A, B: MR-enteroclysis of an ileal stricture (A: T2-weighted gradient echo sequence with fat saturation showing thickening of the affected segment. The inner lumen is reduced; B: T1-weighted sequence with intravenous gadolinium application and fat saturation. The Crohn’s disease (CD) -affected segment is thickened and shows increased contrast enhancement. Additionally, the intestinal vessels are extended); C: Computed tomography-enteroclysis of ileal strictures. The vascular “injection” in the CD-affected area is depicted (“comb sign”).