How effective is MRI compared with ultrasonography in the diagnosis of appendicitis?

Updated: Jul 23, 2018
  • Author: Sandy Craig, MD; Chief Editor: Barry E Brenner, MD, PhD, FACEP  more...
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Answer

When used for evaluating pediatric patients, MRI has a higher sensitivity than ultrasound. In a prospective comparison of ultrasound and MRI in 104 children with suspected appendicitis, researchers found that MRI had a sensitivity of 100% compared to ultrasound which had a sensitivity of 76%. Tolerance of MRI was comparable to that of tolerance for ultrasound. [54]

A retrospective study of 662 patients younger that age 18 years who presented to the emergency department with abdominal pain found that ultrasound followed selectively by MRI accurately diagnosed pediatric appendicitis. [49, 50]

Go to Imaging of Appendicitis for more information on this topic.


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