Background: Magnetic resonance enterography is increasingly utilized for assessment of luminal Crohn’s disease activity. The Magnetic Resonance Index of Activity and the London Index are the most commonly used outcome measures in clinical trials. We assessed the reliability of these indices and several additional items.


Colon, Crohn's Disease, Diagnostic Imaging, Ileum, Magnetic Resonance Enterography, Magnetic Resonance Imaging, Pathology, Reliability

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