3Grazer A, Johnson TR, Bader M, et al. Dual energy CT characteriza- tion of urinary calculi : initial in vitro and clinical experience. Invest Radio1,2008,43 : 112.
4Nicolaou S, Yong-Hing C J, Galea-Soler S, et al. Dual-energy CT as a potential new diagnostic tool in the management of gout in the acute setting. AJR,2010,194 : 1072.
5Choi HK, AL-Arfaj AM, Eftekhari A, et al. Dual energy computed to- mogyaphy in tophaceous gout. Ann Rheum Dis,2009,68:1609.
6Sehumacher HR,Edwards LN,Perez-Ruiz F, et al. Outcome meas- ures for acute and chronic gout. J Rheumatol,2005 ,32 :2452.
7Roddy E, Choi HK. Epidemiology of gout [J]. Rheum Dis Clin North Am,2014,40:155-175.
8Graser A, Johnson TR, Bader M, et al. Dual energy CT characterization of urinary calculi: initial in vitro and clinical experience[J]. Invest Radiol,2008,43:112-119.
9Diekhoff T, Kiefer T, Stroux A, et al. Detection and characterization of crystal suspensions using single-source dual-energy computed tomography: a phantom model of crystal arthropathies [J]. Invest Radiol, 2015, 50:255-260.
10Li X, Wang X, Yu Y, et al.Detection of uric acid depositing in tophaceous gout using a new dual energy spectral CT technology[J]. J Xray Sci Technol,2014,22:541-549.