Bowel Sonography and MR Enterography in Children

Area of Science:

• Pediatric gastroenterology
• Diagnostic imaging
• Inflammatory Bowel Disease (IBD) research

Background:

• Inflammatory Bowel Disease (IBD) diagnosis in children requires accurate imaging.
• MR enterography is a key imaging modality for IBD.
• The role of bowel sonography as a complementary tool needs further evaluation.

Purpose of the Study:

• To compare the diagnostic agreement between bowel sonography and MR enterography in pediatric IBD.
• To assess the reliability and accuracy of each imaging technique for different bowel segments.

Main Methods:

• Prospective study of 33 children with suspected or confirmed IBD.
• Bowel sonography performed within 2 hours before MR enterography.
• Interreader reliability (kappa, ICC) and agreement (KCC) assessed for inflammatory markers and bowel segments.

Main Results:

• Sonography demonstrated substantial reliability in the colon and ileum (ICC 0.79-0.88).
• Agreement between sonography and MR enterography was substantial in the large bowel and ileum (KCC 0.67-0.75).
• Sonography showed high specificity (0.83-1.00) but variable sensitivity for IBD detection.

Conclusions:

• Bowel sonography is highly specific and agrees substantially with MR enterography for IBD in the colon and ileum.
• Sonography can serve as a valuable adjunct to MR enterography in pediatric IBD evaluations.
• This is particularly relevant in settings with limited MR enterography availability.