Dual-energy CT evaluation of gastrointestinal bleeding

Abdom Radiol (NY). 2020 Jan;45(1):1-14. doi: 10.1007/s00261-019-02226-6.

Abstract

Gastrointestinal bleeding is a common cause for hospital admissions and is an important cause of morbidity and mortality. Although endoscopy is accepted as the standard initial diagnostic modality for the evaluation of gastrointestinal bleeding, multiphasic computed tomography (CT) imaging has become an alternative diagnostic tool. Dual-energy CT with post-processing techniques may have additional advantages over single-energy computed tomography in evaluation of gastrointestinal bleeding. In this article, we discuss the role of dual-energy CT in the evaluation of gastrointestinal bleeding with potential advantages over conventional CT and limitations.

Keywords: Computed tomography; Dual-energy computed tomography; Gastrointestinal bleeding; Iodine display techniques; Virtual monochromatic imaging.

Publication types

  • Review

MeSH terms

  • Gastrointestinal Hemorrhage / diagnostic imaging*
  • Gastrointestinal Tract / diagnostic imaging
  • Humans
  • Radiography, Dual-Energy Scanned Projection / methods
  • Tomography, X-Ray Computed / methods*