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Radiographics. 2005 May-Jun;25(3):697-711; discussion 711-8.

Imaging of small bowel disease: comparison of capsule endoscopy, standard endoscopy, barium examination, and CT.

Author information

1
Department of Radiology, Mayo Clinic, 13400 E Shea Blvd, Scottsdale, AZ 85259, USA. hara.amy@mayo.edu

Abstract

Capsule endoscopy is a revolutionary new diagnostic tool for the detection of small bowel disease. As the name implies, capsule endoscopy makes use of a swallowable video capsule; as such, it is the only technique that allows noninvasive endoscopic examination of the entire small bowel without sedation. Obscure gastrointestinal bleeding is the most common indication for capsule endoscopy, which commonly depicts arteriovenous malformations, small bowel tumors, and ulcers missed at standard endoscopy and imaging examinations. However, capsule endoscopy is not optimal for the localization of small bowel lesions. In addition, lesions can be missed due to poor bowel preparation, rapid or delayed small bowel transit, or orientation of the camera away from a lesion. Computed tomography and barium examinations are useful for detecting these missed lesions and for localizing lesions detected at capsule endoscopy. Other limitations of capsule endoscopy are the inability to treat lesions and its limited use in patients with small bowel strictures or obstruction. Nevertheless, this new technique is easy to perform, is well tolerated by patients, and, for the first time, allows noninvasive endoscopic evaluation of the entire small bowel.

PMID:
15888619
DOI:
10.1148/rg.253045134
[Indexed for MEDLINE]

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