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Gastrointestinal Imaging

E2637. DWI in Abdominal Imaging: Look at These Pearls

El Hawari M1,  Ali K1,  Mittal P2,  Craig P1,  Joshi A.1 1. University of Kansas Medical Center, Wichita, KS; 2. Emory University, Atlanta, GA

Address correspondence to M. El Hawari (mohamadhawari@hotmail.com)

Background Information: DWI depends on free motion of water molecules (Brownian movement) in the body tissues and is widely used in neuroimaging. Utility of DWI in abdominal imaging has widely increased over the past 2 decades with the recent developments in MRI technology and stronger gradients. As such, DWI has important emerging applications in various oncologic and inflammatory abdominal pathologies.

Educational Goals/Teaching Points: The goals of this exhibit are to provide a brief overview of the basic concepts in DWI technique in abdominal imaging, illustrate various abdominal oncologic, inflammatory, and ischemic changes detected on DWI, and describe potential pitfalls and challenges and how to mitigate them.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques: We will discuss the quantitative and qualitative information that DWI provides to help characterize various abdominal lesions.

Conclusion: DWI sequences in abdominal imaging are complimentary to CT and conventional MRI of the abdomen and provide valuable information for problem solving and management.