What is the role of ultrasonography in the evaluation of small-bowel obstruction (SBO)?

Updated: Apr 28, 2017
  • Author: Mityanand Ramnarine, MD, FACEP; Chief Editor: Steven C Dronen, MD, FAAEM  more...
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Ultrasonography is less costly and invasive than CT scanning and may reliably exclude SBO in as many as 89% of patients; specificity is reportedly 100%. It may be a useful alternative imaging modality in children and pregnant women.

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