Ultrasound for Midgut Malrotation and Midgut Volvulus: AJR Expert Panel Narrative Review

HaiThuy N Nguyen1,2, Oscar M Navarro3,4, David A Bloom5

  • 1Edward B. Singleton Department of Radiology, Texas Children's Hospital, 6701 Fannin St, Houston, TX 77030.

Insights

Midgut volvulus with malrotation is a pediatric emergency. Ultrasound (US) offers a promising alternative to traditional fluoroscopy for prompt diagnosis, potentially reducing complications in children.

Area of Science:

  • Pediatric Surgery
  • Diagnostic Imaging
  • Gastrointestinal Radiology

Background:

  • Midgut volvulus associated with malrotation presents a critical pediatric surgical emergency.
  • Timely diagnosis is crucial to prevent bowel ischemia, necrosis, and associated mortality.
  • Fluoroscopic upper gastrointestinal series has been the standard diagnostic tool, but ultrasound (US) use is growing.

Purpose of the Study:

  • To detail the ultrasound findings of midgut malrotation and volvulus in pediatric patients.
  • To provide practical guidance on acquiring and interpreting ultrasound images for these conditions.
  • To compare the advantages and limitations of ultrasound versus fluoroscopy.
  • To propose a framework for adopting ultrasound as a primary diagnostic method.

Main Methods:

  • This is a narrative review of diagnostic imaging modalities for pediatric midgut malrotation and volvulus.
  • The review focuses on ultrasound findings and compares them with fluoroscopic upper gastrointestinal series.
  • It includes practical tips for ultrasound acquisition and interpretation based on clinical experience.

Main Results:

  • Ultrasound demonstrates specific findings indicative of midgut malrotation and volvulus.
  • Ultrasound offers potential advantages in speed and accessibility compared to fluoroscopy.
  • Challenges and limitations of ultrasound in diagnosing these conditions are also discussed.

Conclusions:

  • Ultrasound is an increasingly viable imaging modality for pediatric midgut malrotation and volvulus.
  • With proper protocols and training, ultrasound can be considered for first-line diagnosis.
  • Transitioning to ultrasound may improve diagnostic efficiency and patient outcomes.

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