Journal
ABDOMINAL IMAGING
Volume 38, Issue 1, Pages 82-97Publisher
SPRINGER
DOI: 10.1007/s00261-012-9897-z
Keywords
CT colonography; Virtual colonoscopy; Interpretation; Pitfalls; Colorectal polyps
Funding
- NCI NIH HHS [R01 CA144835] Funding Source: Medline
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Misinterpretation at CT colonography (CTC) can result in either a colorectal lesion being missed (false-negative) or a false-positive diagnosis. This review will largely focus on potential missed lesions-and ways to avoid such misses. The general causes of false-negative interpretation at CTC can be broadly characterized and grouped into discrete categories related to suboptimal study technique, specific lesion characteristics, anatomic location, and imaging artifacts. Overlapping causes further increase the likelihood of missing a clinically relevant lesion. In the end, if the technical factors of bowel preparation, colonic distention, and robust CTC software are adequately addressed on a consistent basis, and the reader is aware of all the potential pitfalls at CTC, important lesions will seldom be missed.
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