CT enterography technique: theme and variations.

CT enterography has rapidly gained acceptance as a method for visualizing the small bowel lumen, wall and mesentery for a variety of clinical indications. Focusing on the identification of Crohn's disease, and vascular and neoplastic small bowel masses, this review summarizes oral contrast agents and CT acquisition techniques used for CT enterography, alternatives that can be used to tailor the exam for specific indications, and how such variations affect the appearance of a variety of pathologies at CT imaging.