CROHNS-DISEASE - CURRENT IMAGING APPROACH

Purpose: This paper discusses the role of different imaging modalities in the diagnostic work-up of Crohn's disease (CD). Methods: We presen t a concept, which emphasizes different diagnostic aspects with regard to primary diagnosis, follow-up and assessment of complications of CD . The most effective imaging approach to various diagnostic problems o f CD is discussed in detail. Discussion: With regard to the primary di agnosis barium studies should contribute to differentiate between CD a nd ulcerative colitis. Beyond that, these studies should evaluate loca tion and extent of disease. During the follow-up bowel sonography prov ides staging of disease and enables the detection of complications at an early stage. CT is a valuable tool in the preoperative assessment o f complications, such as fistulae and abscesses.