Diffusion-weighted imaging in Crohn's disease.

Area of Science:

• Gastroenterology
• Radiology
• Medical Imaging

Background:

• Diffusion-weighted MRI (DWI) is a standard technique in abdominal imaging.
• DWI detects inflammatory changes and neoplastic diseases based on diffusion restriction.
• Its application is expanding in MRI of the small and large intestine.

Purpose of the Study:

• To detail the technical aspects of DWI in diagnosing Crohn's disease (CD).
• To evaluate DWI's role in grading CD severity and monitoring treatment.
• To provide a comprehensive overview of DWI for bowel pathologies in CD.

Main Methods:

• Analysis of guidelines, basic research papers, and review articles.
• Focus on technical aspects and diagnostic utility of DWI.
• Literature review for evidence on DWI in CD.

Main Results:

• DWI visualizes water molecule diffusion in tissues.
• DWI aids in diagnosing inflammatory bowel disease and assessing treatment response.
• DWI detects intra-, transmural, and extramural changes, despite limitations.

Conclusions:

• DWI is valuable for evaluating bowel wall changes in CD.
• It assists in diagnosing extramural complications associated with CD.
• The article summarizes existing literature on DWI for CD assessment.