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Related Experiment Videos

Ischemic or infarcted bowel: CT findings.

M B Alpern1, G M Glazer, I R Francis

  • 1Department of Radiology, University of Michigan Medical School, Ann Arbor.

Radiology
|January 1, 1988
PubMed
Summary

Computed tomography (CT) showed limited diagnostic accuracy for bowel ischemia or infarction, though it aided treatment in over half of patients. Specific CT findings like bowel dilatation were often non-specific.

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Area of Science:

  • Radiology
  • Gastroenterology
  • Abdominal Imaging

Background:

  • Computed tomography (CT) is frequently employed for diagnosing bowel ischemia and infarction.
  • The diagnostic efficacy of CT in these conditions requires further evaluation.

Purpose of the Study:

  • To assess the diagnostic accuracy and clinical utility of CT scans in patients with suspected bowel ischemia or infarction.

Main Methods:

  • Retrospective review of CT scans and medical records from 23 patients with confirmed bowel ischemia or infarction.
  • Analysis of surgical or autopsy findings to confirm the extent and location of ischemia/infarction.

Main Results:

  • CT provided a specific diagnosis in only 26% of patients but was useful for treatment planning in 56%.
  • Common CT findings included bowel dilatation (56%), often non-specific, and bowel wall thickening (26%), which could be misleading.
  • Specific signs like pneumatosis intestinalis (22%), portal venous gas (13%), superior mesenteric artery thrombosis (4%), and free intraperitoneal gas (4%) were infrequent.

Conclusions:

  • CT has limited sensitivity for definitively diagnosing bowel ischemia or infarction.
  • Despite diagnostic limitations, CT can still inform clinical management decisions in suspected cases.
  • Radiologists should be aware of the non-specific nature of some CT findings in bowel ischemia.

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