Shima Aran MD, Presenter: Nothing to Disclose

Frank J. Simeone MD, Abstract Co-Author: Nothing to Disclose

Khalid Walid Shaqdan MD, Abstract Co-Author: Nothing to Disclose

Elmira Hassanzadeh MD, Abstract Co-Author: Nothing to Disclose

Efren Jesus Flores MD, Abstract Co-Author: Nothing to Disclose

Hani H. Abujudeh MD, MBA, Abstract Co-Author: Research Grant, Bracco Group Consultant, RCG HealthCare Consulting Author, Oxford University Press

There are many exciting new applications for advanced imaging in gout. Dual energy CT (DECT) can differentiate urate crystals from calcium by using specific attenuation characteristics and reveal even small occult tophaceous deposits. DECT can also be used for serial volumetric quantification of subclinical tophi to evaluate response to treatment. We plan to expose radiologists to a series of challenging cases to understand how this unique and clinically relevant modality can facilitate diagnosis and management of gout.

1. Physical principles of DE or spectral CT on basis of photoelectric and Compton interactions as well as material decomposition. 2. Available techniques of DE data acquisition, for example, dual source CT scanners, fast kilovoltage switching and sandwich detector tech¬niques. 3. Image processing and reconstruction of DECT data. 4. Clinical application of DECT for diagnosis and management of gout. 5. Sample cases. 6. Limitations of DECT in the musculoskeletal imaging such as the effects on image quality, artifacts and radiation dose.  

http://abstract.rsna.org/uploads/2014/14003416/14003416_m31b.pdf

Aran, S, Simeone, F, Shaqdan, K, Hassanzadeh, E, Flores, E, Abujudeh, H, Basic Principles and Applications of Dual Energy Computed Tomography (DECT) in Gout.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14003416.html