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Blurring and Irregularity of the Subchondral Cortex in Pediatric Sacroiliac Joints on T1 Images: Incidence of Normal Findings That Can Mimic Erosions.
Arthritis Care Res (Hoboken)
January 2023
University of Alberta and Medical Imaging Consultants, Edmonton, Alberta, Canada.
Article Synopsis
- The study aimed to assess how common variations in the appearance of subchondral bone on T1-weighted MRI might resemble erosions in the sacroiliac joints of children, focusing on differences by age and sex.
- MRI images of 251 children (mostly aged around 12.4 years) were evaluated by three independent radiologists, who noted features such as visibility, blurring, and irregularity of the cortical black line, with results showing a high prevalence of abnormal features in over 65% of cases.
- The findings highlight the importance of recognizing normal MRI appearances in pediatric patients to avoid misdiagnosing sacroiliitis, as many children's MRI results contain characteristics commonly associated with erosions