title: Computed tomography enterography for evaluation of inflammatory bowel disease.
abstract: Computed tomography enterography (CTE) has become a main modality for the evaluation of inflammatory bowel disease (IBD). It simultaneously offers visualization of the small bowel and extraintestinal status, which is helpful for diagnosing IBD. Crohn disease has long segmental enhancing wall thickening related with the eccentric longitudinal distribution. In addition, mural stratification, fibrofatty proliferation, positive comb sign by increased mesenteric vascularity and internal/perianal fistula are characteristics of Crohn disease and can be identified on CTE. Short segmental inflammatory wall thickening and the central low attenuated lymph nodes are favorable CT finding of intestinal tuberculosis. A geographic, relatively large, and deep penetrating ulcer with bowel wall thickening and mural hyperenhancement in ileocecal area are characteristics of intestinal Behcet disease. Each of CTE findings for the IBDs is helpful for differential diagnosis. The main disadvantage of this technique is the requisite radiation exposure of patients, particularly in young patients. However, recent development of advanced CT techniques is promising for radiation dose reduction without compromising diagnostic image quality.
authors: Department of Radiology, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea.
authors: Min Jung
authors: MJ
authors: Park
authors: Joon Seok
authors: JS
authors: Lim
keywords: Behcet syndrome; Computed tomography enterography; Crohn disease; Inflammatory bowel diseases; Intestinal tuberculosis
references: Gastroenterology. 2002 Apr;122(4):875-80
references: 11910338
references: Abdom Imaging. 2009 Jul;34(4):467-75
references: 18551336
references: Radiographics. 2011 May-Jun;31(3):835-48
references: 21571660
references: Radiology. 2006 Dec;241(3):787-95
references: 17032911
references: AJR Am J Roentgenol. 1997 Dec;169(6):1545-50
references: 9393162
references: Radiology. 2004 Mar;230(3):783-4
references: 14990842
references: AJR Am J Roentgenol. 2002 Oct;179(4):1029-36
references: 12239060
references: AJR Am J Roentgenol. 2012 May;198(5):1084-92
references: 22528897
references: Abdom Imaging. 2012 Jun;37(3):350-8
references: 22002159
references: Indian J Gastroenterol. 2013 May;32(3):152-62
references: 23475544
references: Dis Colon Rectum. 1994 Jan;37(1):16-21
references: 8287741
references: Radiol Clin North Am. 2003 Mar;41(2):285-303
references: 12659339
references: Radiol Clin North Am. 2007 Mar;45(2):303-15
references: 17502219
references: Inflamm Bowel Dis. 2012 Feb;18(2):219-25
references: 21337477
references: Eur J Radiol. 1998 Aug;28(1):55-61
references: 9717624
references: Radiographics. 2006 May-Jun;26(3):641-57; discussion 657-62
references: 16702444
references: Aliment Pharmacol Ther. 2007 Jun 15;25(12):1373-88
references: 17539977
references: Abdom Imaging. 1995 Jul-Aug;20(4):327-32
references: 7549737
references: AJR Am J Roentgenol. 2008 Jun;190(6):1512-6
references: 18492900
references: Radiographics. 2008 Sep-Oct;28(5):e31
references: 18603663
references: Radiology. 1997 Mar;202(3):597-610
references: 9051003
references: Gut. 2008 Nov;57(11):1524-9
references: 18443021
references: Gut. 2006 Nov;55(11):1561-7
references: 16648154
references: Radiology. 2003 Oct;229(1):275-81
references: 12944602
references: N Engl J Med. 1999 Oct 21;341(17):1284-91
references: 10528040
references: Radiology. 2006 Feb;238(2):505-16
references: 16436815
references: Gut. 2006 Mar;55 Suppl 1:i1-15
references: 16481628
references: Gastroenterology. 1999 Jul;117(1):73-81
references: 10381912
references: Radiology. 2007 Dec;245(3):661-71
references: 18024448
references: Gastrointest Endosc. 2008 Aug;68(2):255-66
references: 18513722
references: Eur J Radiol. 2012 Jan;81(1):52-9
references: 21185142
references: Am J Gastroenterol. 2009 Oct;104(10):2492-9
references: 19532129
references: Radiographics. 2008 Sep-Oct;28(5):1451-9
references: 18794318
references: Inflamm Bowel Dis. 2008 Dec;14(12):1701-6
references: 18623171
references: Br J Radiol. 2011 Feb;84(998):112-9
references: 20959377
references: Radiology. 1998 Nov;209(2):449-54
references: 9807572
references: Dis Colon Rectum. 2007 Nov;50(11):1761-9
references: 17701255
references: Inflamm Bowel Dis. 2013 Aug;19(9):1852-7
references: 23702806
references: Eur Radiol. 2002 Feb;12(2):312-23
references: 11870428
references: Dis Colon Rectum. 1981 Mar-Apr;24(2):103-6
references: 7215071
references: Hum Pathol. 1985 Aug;16(8):790-5
references: 4018777