Maria Cruz Ageitos Casais MD, Presenter: Nothing to Disclose

Sandra Baleato Gonzalez MD, Abstract Co-Author: Nothing to Disclose

Roberto Garcia Figueiras MD, Abstract Co-Author: Nothing to Disclose

Joan C. Vilanova MD, PhD, Abstract Co-Author: Nothing to Disclose

Carmen Villalba Martin MD, Abstract Co-Author: Nothing to Disclose

Diffusion-weighted imaging (DWI) is a magnetic resonance technique that gives us functional information about the analyzed tissues. Used in conjunction with other sequences available, it helps us to detect and characterize the lesions and even to predict a possible response to the specific treatments. The aim of this exhibit is: - To explain the principles of diffusion-weighted imaging in a friendly way. - To know the limitations, the advantages and the tricks of this technique - To illustrate the specific findings of DWI in the gastrointestinal tract and peritoneum in a variety of conditions including malignant and benign processes. - To discuss the specific clinical situations in which DWI is useful for pre- and post-treatment assessment.

1. Principles of DWI 2. When and why to use this technique 3. Important DWI findings by entities:    a)  Inflammatory conditions: Inflammatory bowel disease, acute diverticulitis, appendicitis, colitis.    b) Neoformative conditions: bening (poliposis) and malignant (gastric tumors, small bowel tumors, colorrectal tumors, lymphoma) 4. Take home points  

http://abstract.rsna.org/uploads/2014/14011887/14011887_338f.pdf

Ageitos Casais, M, Baleato Gonzalez, S, Garcia Figueiras, R, Vilanova, J, Villalba Martin, C, Diffusion-weighted Imaging in the Gastrointestinal Tract and Peritoneum: How, When, and Why?.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14011887.html