Imaging modalities play an important role in the diagnosis and management of patients with Crohn’s disease (CD). Imaging is used for diagnostic purposes as well as in the evaluation of the nature, gravity, and extraintestinal complications of the disease. It also provides information on the degree of inflammation and useful feedback after clinical or surgical therapy. To this end, endoscopy and conventional radiological and cross-sectional imaging methods (ultrasound, CT, and MR) are mainly used. Radiological and cross-sectional imaging tests are particularly significant in the evaluation of the small intestine, given the fact that its endoscopic investigation is incomplete or almost impossible.