Xiaohu Li MD, Presenter: Nothing to Disclose

Bing Liu MD, Abstract Co-Author: Nothing to Disclose

Yu Yongqiang MD, PhD, Abstract Co-Author: Nothing to Disclose

1. Review DECT technique and discuss clinically specific joints protocols 2.Apply various DECT imaging displays and advance post-processing techniques to detection of uric acid depositing in tophaceous gout 

1.Dual energy implies at two different kV(80KV,140KV) levels simultaneously. The result is two spiral data sets acquired in a single scan providing information, which allows characterizing the imaged tissue or material. 2.Gout is characterized by the inflammatory response that results from the deposition of monosodium urate crystals in soft tissues and joints. 3.Dual source Dual-energy CT has been used to differentiate uric acid from calcium in musculoskeletal tissue, allowing gouty urate crystals to be distinguished from bone or dystrophic calcifications. 4.Dual-energy spectral CT can detect gout tophi within the peripheral joints of the patients. The quantitative measurement of the tophi concentration provides a new imaging method for quantitatively monitoring clinical outcomes of tophi. 

http://abstract.rsna.org/uploads/2014/14003736/14003736_8ll9.pdf

Li, X, Liu, B, Yongqiang, Y, Update and Review of Dual-Energy CT Clinical Applications of the Gout .  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14003736.html