Imaging Workup of Acute and Occult Lower Gastrointestinal Bleeding

Trevor C. Morrison, Michael Wells, Jeff Lynn Fidler, Jorge A. Soto

Research output: Contribution to journalReview articlepeer-review

2 Scopus citations


Lower gastrointestinal bleeding is defined as occurring distal to the ligament of Treitz and presents as hematochezia, melena, or with anemia and positive fecal occult blood test. Imaging plays a pivotal role in the localization and treatment of lower gastrointestinal bleeds. Imaging tests in the workup of acute lower gastrointestinal bleeding include computed tomography (CT) angiography, nuclear medicine scintigraphy, and conventional catheter angiography. Catheter angiography can also be used to deliver treatment. Imaging tests in the workup of occult lower gastrointestinal bleeding include CT enterography and nuclear medicine Meckel scan.

Original languageEnglish (US)
Pages (from-to)791-804
Number of pages14
JournalRadiologic Clinics of North America
Issue number5
StatePublished - Sep 1 2018


  • Acute
  • Angiography
  • Bleed
  • Enterography
  • Gastrointestinal
  • Lower
  • Occult
  • Radiology

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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