Dual Energy Computed Tomography Scans of the Bowel: Benefits, Pitfalls, and Future Directions

Benjamin M. Yeh, Markus M. Obmann, Antonio C. Westphalen, Michael A. Ohliger, Judy Yee, Yuxin Sun, Zhen J. Wang

Research output: Contribution to journalReview articlepeer-review

4 Scopus citations


Current computed tomography bowel imaging is challenging given the variable distension, content, and location of the bowel, the different appearance of tumors within and adjacent to bowel, and peristaltic artifacts. Published data remain sparse. Derangements in enhancement may be highlighted, image artifacts reduced, and radiation dose from multiphase scans minimized. This modality is suited for imaging bowel tumor detection and characterization, gastrointestinal bleeding, and bowel inflammation, and ischemia. Experimental results on computed tomography colonography and novel bowel contrast material offer hope for major improvements in bowel interrogation. It is likely to become increasingly valuable for bowel-related disease diagnosis and monitoring.

Original languageEnglish (US)
Pages (from-to)805-819
Number of pages15
JournalRadiologic Clinics of North America
Issue number5
StatePublished - Sep 1 2018
Externally publishedYes


  • Bowel
  • Computed tomography
  • Dual energy CT
  • Multi-energy CT

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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