Contrast-enhanced MRI of the small bowel in Crohn??s disease |
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Authors: | Jacob Oommen Aytekin Oto |
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Institution: | (1) Department of Radiology, University of Chicago, Chicago, IL, USA |
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Abstract: | Recently, magnetic resonance imaging has emerged as a valuable tool in evaluation of small bowel Crohn’s disease. MRI provides
several advantages to other imaging modalities, including the lack of ionizing radiation, multiplanar capability, and functional
information. Intravenous contrast administration is a routine portion of MR enterography protocol, and aids in detection of
disease extent, extramural complications such as fistula and abscess, and assessment of activity. Additionally, promising
techniques such as dynamic contrast-enhanced MRI may provide quantitative measures to assess bowel perfusion, which may enhance
evaluation of disease activity. This article will provide an overview of the technical aspects of contrast-enhanced MR enterography,
describe common pathologic findings involving the small bowel in Crohn’s disease, summarize its role in determination of activity
with an emphasis on endoscopic and histologic correlation, and compare its efficacy with other imaging modalities. |
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Keywords: | |
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