The two techniques can be employed in different stages of the natural course of the disease. In our experience, TLLS proved itself to be useful in the diagnosis of the disease and the assessment of its development. Conversely, MDCT-E proved itself to be more reliable in identifying the seat and the extent of the disease inside and outside the bowel wall as well as potential intra-peritoneal and extra-intestinal complications. The combined use of the two methods represents the Criterion Standard for diagnosing IBD with imaging.
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