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《Chongqing Medicine》 2017-04
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Analysis of dual energy CT imaging in the diagnosis of gouty tophus deposition value

Duan Yanfeng;Li Wei;Yang Wei;Guo Longyu;Wang Juan;Department of Endocrinology,the People′s Hospital of Anyang;Department of Radiology,the People′s Hospital of Anyang;  
Objective To explore the value of dual energy CT imaging in the diagnosis of gouty tophus deposition.MethodsSixty-five cases of patients with gout treated in this hospital between December 2012 to December 2015 were selected.Another 65 cases of patients(rheumatoid arthritis,degenerative osteoarthritis and unexplained leg pain)were selected as control group.The results of dual energy CT imaging between two group were compared.Three experienced clinicians who didn′t understand the imaging results were selected.They had a medical history and physical examination in patients with gout.The differences between clinical evaluation and imaging results were compared.Results Dual energy CT imaging showed that there were no tophi deposition in control group;the topi deposition in wrist joint,knee joint and ankle joint were 6.06%(33/34),100.00%(22/22)and 96.49%(55/57)in gout group.Dual energy CT imaging detected a total of 545 parts of tophus deposition.It was 4.36 times of the result of clinical evaluation(125parts).Conclusion Dual energy CT imaging shows the advantages of simple noninvasive,high accuracy and low rate of misdiagnosis in diagnosing gout nodules.
【CateGory Index】: R589.7
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