| ADA | adalimuamab |
| BWT | bowel wall thickness |
| BWS | bowel wall stratification |
| CD | Crohn’s disease |
| CDS | color Doppler signal |
| CS-free | corticosteroid-free |
| CTE | computed tomography enterography |
| DH | deep healing |
| EH | endoscopic healing |
| HR | hazard ratio |
| IBD | inflammatory bowel disease |
| IFX | infliximab |
| IUS | intestinal ultrasound |
| MaRIA | Magnetic Resonance Index of Activity |
| MH | mucosal healing |
| MRI | magnetic resonance imaging |
| NH | non-healing |
| OR | odds ratio |
| RCT | randomized controlled trial |
| RH | radiologic healing |
| SES-CD | Simple Endoscopic Score for Crohn’s Disease |
| TH | transmural healing |
| PICMI | Pediatric Inflammatory Crohn’s MRE Index |
| UC | ulcerative colitis |
| VDZ | vedolizumab |