Micheal McInnis MD, Abstract Co-Author: Nothing to Disclose

Efren Jesus Flores MD, Presenter: Nothing to Disclose

Jo-Anne O. Shepard MD, Abstract Co-Author: Consultant, Agfa-Gevaert Group

Jeanne B. Ackman MD, Abstract Co-Author: Nothing to Disclose

From this exhibit, the viewer will have a better understanding of: 1. Misleading CT and/or PET appearances of thymic hyperplasia and thymic cysts; how MRI can prevent potential diagnostic errors and unnecessary diagnostic intervention. 2. How to avoid pitfalls in Thymic MR imaging and interpretation. 3. How to tailor the Thymic MRI protocol to the clinical question and keep the exam as short and efficacious as possible.  

1. Approach to MR imaging of the thymus  a. Our standard Thymic MRI protocol; an algorithm depicting how to tailor it to clinical question.  b. The nuts and bolts of chemical shift ratio assessment of thymic lesions, when applicable.  2. Pitfalls of thymic lesion assessment and how to avoid them a. Case-based figures illustrating how inaccurate assessment of CT, PET, thymic anatomy on MRI, and chemical shift MR imaging can yield pseudolesions and other misinterpretations that can negatively impact clinical management. b. Case-based figures illustrating how correct performance and interpretation can provide accurate diagnosis and aid clinical management. 3. Summary From this exhibit, the viewer will be able to understand pitfalls in multimodality thymic imaging interpretation and how Thymic MRI, when performed correctly, can help.  

http://abstract.rsna.org/uploads/2014/14004316/14004316_3k1p.pdf

McInnis, M, Flores, E, Shepard, J, Ackman, J, Pitfalls in Imaging of Benign Thymic Lesions; How Thymic MRI Can Help.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14004316.html