Crohn's disease patients with no-to-mild inflammation

On MR enterography, the Magnetic Resonance Index of Activity (MaRIA) and Magnetic Resonance Enterography Global Score (MEGS) were used to characterize intestinal inflammation by assessing intramural and extramural lesions in both the small and large intestines. In ileocolonoscopy, the Simplified Endoscopic Activity Score for Crohn's Disease (SES-CD) was used to quantify mucosal or luminal lesions from the terminal ileum to the colorectum. Both modalities were used to classify patients with no-to-mild or moderate-to-severe inflammation. We defined patients as having moderate-to-severe inflammation when at least two of the following criteria were met: (1) MaRIA≥11; (2) MEGS≥ 10 for the small bowel or MEGS≥12 for the colon; or (3) SES-CD≥11. Otherwise, patients were categorized as having no-to-mild inflammation.

Crohn's disease patients with moderate-to-severe inflammation

On MR enterography, the Magnetic Resonance Index of Activity (MaRIA) and Magnetic Resonance Enterography Global Score (MEGS) were used to characterize intestinal inflammation by assessing intramural and extramural lesions in both the small and large intestines. In ileocolonoscopy, the Simplified Endoscopic Activity Score for Crohn's Disease (SES-CD) was used to quantify mucosal or luminal lesions from the terminal ileum to the colorectum. Both modalities were used to classify patients with no-to-mild or moderate-to-severe inflammation. We defined patients as having moderate-to-severe inflammation when at least two of the following criteria were met: (1) MaRIA≥11; (2) MEGS≥ 10 for the small bowel or MEGS≥12 for the colon; or (3) SES-CD≥11. Otherwise, patients were categorized as having no-to-mild inflammation.