Table 1.

Summary of the main advantages and disadvantages of CTE and MRE in the evaluation of patients with Crohn's disease.

Variable	CTE	MRE
Ionizing radiation	Present	Absent
Duration of examination	Short (< 5 min)	Long (30-40 min)
Spatial resolution	Higher	Lower
Contrast among structures	Lower	Higher
Availability	Widely available	Only at large centers
Cost	Lower	Higher
Intravenous contrast	Iodinated, greater nephrotoxicity	Gadolinium, lower nephrotoxicity
Motion artifacts	Low susceptibility	High susceptibility
Dynamic functional image acquisition	Restricted by ionizing radiation	Possible