DWI at MR Enterography for Evaluating Bowel Inflammation in Crohn Disease

Abstract

Objective: The purpose of this article is to provide a comprehensive review regarding DWI enterography used for evaluating Crohn disease and to summarize the relevant evidence.

Conclusion: Active bowel inflammation in Crohn disease causes restricted diffusion on MR enterography with DWI. Enterographic DWI to evaluate Crohn disease is increasingly drawing attention for both academic research and clinical practice and has shown potential as a quantitative tool for assessing bowel inflammation. DWI enterography also has multiple unresolved issues and limitations.

Keywords: Crohn disease; DWI; MR enterography; diffusion; inflammatory bowel disease.