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Investigation for suspected extraluminal complications. CT is the preferred investigation in all age groups, followed by barium follow-through (BaFT), although small bowel ultrasound (SbUS) and MRI are used with increased frequency in younger patients. BE, barium enteroclysis; Cap E, capsule endoscopy; CTE, CT enteroclysis; CTO, CT (oral contrast); MRIE, MRI enteroclysis; MRIO, MRI (oral contrast).
