Multiphase CT enterography evaluation of small-bowel vascular lesions

James E. Huprich, John M. Barlow, Stephanie L. Hansel, Jeffrey A. Alexander, Jeff L. Fidler

Research output: Contribution to journalReview articlepeer-review

41 Scopus citations


OBJECTIVE. By use of multiphase CT enterography (CTE), small-bowel vascular lesions associated with gastrointestinal bleeding can be classified into three categories-angioectasias, arterial lesions, and venous abnormalities-on the basis of common morphology and enhancement patterns. This article will review the unique patterns of enhancement and lesion morphology seen on multiphase CTE and how those findings enable detection and characterization of specific lesions in many cases. CONCLUSION. Because of the high prevalence in nonbleeding patients and frequent multiplicity of angioectasias, determining the clinical benefit from their detection by multiphase CTE and endoscopy is problematic. Although arterial lesions are less commonly encountered clinically, their detection is critically important because of a high risk of life-threatening bleeding. Along with wireless capsule endoscopy and balloon-assisted endoscopy, multiphase CTE is a useful tool for the evaluation of patients with obscure gastrointestinal bleeding due to small-bowel vascular lesions.

Original languageEnglish (US)
Pages (from-to)65-72
Number of pages8
JournalAmerican Journal of Roentgenology
Issue number1
StatePublished - Jul 2013


  • Angioectasia
  • CT
  • CT enterography
  • Obscure gastrointestinal bleeding
  • Small-bowel vascular lesions

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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