Cure8 news brief
MR enterography and intestinal ultrasound — both recommended first‑line imaging tests in Crohn’s disease — often disagree on numeric measurements that clinicians use to judge activity and treatment response. This could affect treat‑to‑target decisions and how imaging is interpreted over time.
Adults with Crohn’s disease (new diagnosis or relapse), clinicians who use imaging to monitor disease, radiologists and sonographers, and researchers studying imaging endpoints
The study compared MR enterography and intestinal ultrasound performed within four weeks in 284 adults with new or relapsing Crohn’s disease, using blinded readers and a multidisciplinary reference panel.
For individual parameters (mural thickness and lesion length) the limits of agreement were wide: differences of several millimetres for thickness and many centimetres for length were common, especially when one test missed disease.
Agreement was much better when readers recorded an overall segment severity (none, mild, advanced), with 95% concordance when disease was visible on both scans.
Practical points Disagreement is most likely to affect borderline thickness values (around the 3 mm normal threshold) and longer segment length estimates; small measurement differences could influence early treatment response assessments or disease activity scores.
The study used an analysis that included cases where one modality missed disease (imputation), which produced a worst‑case estimate of disagreement, and a separate complete‑case analysis showed closer agreement.
How this might affect care conversations Ask your care team which imaging test they prefer for your situation and whether they interpret single numeric measurements (eg, wall thickness or length) or rely on overall severity assessments. If scans are being used to make fine
The article reports a multicentre agreement study published in European Radiology Abdomen using data from the METRIC trial (patients scanned 2013–2016). The authors analysed the full cohort with imputation for missed disease (a conservative approach) and a complete‑case subset; overall segmentation severity agreed better than individual numeric measurements.
Review the original publication for the complete reporting, methods, and context.
This Cure8 brief is based on source text from the linked article. Cure8 is informational only and is not a substitute for professional medical advice, diagnosis, or treatment.
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