Dana Lin MD, Presenter: Nothing to Disclose

Daniel S. Chow MD, Abstract Co-Author: Nothing to Disclose

Keith Cauley MD, PhD, Abstract Co-Author: Nothing to Disclose

Pallavi Sai Utukuri MD, Abstract Co-Author: Nothing to Disclose

Christopher G. Filippi MD, Abstract Co-Author: Nothing to Disclose

Angela Lignelli-Dipple MD, Abstract Co-Author: Nothing to Disclose

Diffusion-weighted MRI has become an indispensable sequence for neuroimaging and is now in widespread use. Although principally used in the evaluation of ischemic injury, other pathologies, including neoplasms, infections, and inflammatory causes, also exhibit characteristic patterns on diffusion. Additionally, new applications including fiber tractography and ADC histogram analysis are now increasingly used clinically. To better utilize diffusion imaging, radiologists must be familiar with the fundamental principles and concepts behind the imaging technique and its limitations or potential pitfalls. The purpose of this exhibit is to provide 1) a systematic review of the physics behind diffusion imaging 2) an introduction to advanced techniques 3) a case-based review of lesions with restricted diffusion and their differential diagnosis.

A. Background of diffusion imaging B. Roadmap to diffusion physics Description of different types of diffusion Sequence, b-factor, ADC Artifacts that can appear on diffusion imaging C. Applications of advanced techniques (with emphasis on ADC histogram analysis and tractography) D. Case-based review of lesions with restricted diffusion and their differential diagnosis Vascular Neoplastic Infectious/inflammatory Metabolic  

http://abstract.rsna.org/uploads/2014/14016324/14016324_7mr8.pdf

Lin, D, Chow, D, Cauley, K, Utukuri, P, Filippi, C, Lignelli-Dipple, A, Bright Ideas: The Physics, Advanced Techniques and Case-based Review of Restricted Diffusion.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14016324.html