Cross-Sectional Imaging Features Associated With Disease Progression in Crohn's Disease

Area of Science:

• Gastroenterology
• Radiology
• Medical Imaging

Background:

• Crohn's disease (CD) management often involves early aggressive therapy.
• Identifying patients with milder disease courses is crucial for tailored treatment.
• Predictive markers for CD progression are needed.

Purpose of the Study:

• To determine cross-sectional radiographic features that predict the progression of Crohn's disease.
• To identify imaging findings associated with disease worsening.

Main Methods:

• Retrospective multi-institution cohort study of 177 adult CD patients.
• Review of cross-sectional imaging (81% CT) for 37 radiologic features.
• Primary outcome: composite disease progression (biologics, surgery, hospitalization).

Main Results:

• 45.8% of patients experienced disease progression.
• Small bowel wall thickening >5 mm, distal colonic inflammation, and segmental mural hyperenhancement independently predicted progression.
• Absence of these features identified a subgroup with low progression (13.7%).

Conclusions:

• Cross-sectional imaging can identify mild CD patients at higher risk of progression.
• Absence of specific radiologic features may indicate suitability for less aggressive management.
• This could define a population for trials of mild CD treatment strategies.