Abstract

Info

Author(s):: WEI Lin; LU Zhongwu; LIAO Yun; LI Li; LU Yongliang; SHI Fuxing; Department of Radiology, Hechi People’s Hospital, Hechi 547000, China

Keywords:: ; Keywords: dual-energy CT; gouty arthritis; gouty nodule; bone destruction

Abstract:: Abstract: Objective To investigate the diagnostic value of dual-energy CT in gouty arthritis. Methods A total of 91 patients with suspected gouty arthritis were scanned by dual-energy CT. Results According to the golden standard, 71 patients were diagnosed with gouty arthritis, while the others were diagnosed with non-gouty arthritis. The results of dual-energy CT showed that there were 68 cases of gouty arthritis and 23 cases of non-gouty arthritis. The sensitivity, specificity, positive predictive value and negative predictive value of dual energy CT in the diagnosis of gouty arthritis were 91.55%, 85.00%, 95.59% and 73.91%, respectively. The detection rates of dual-energy CT in gout nodules and bone destruction in intermittent chronic phase were 95.12% and 65.85%, respectively, which were significantly higher than those in acute phase (P<0.05). No significant difference was found in the detection rate of dual-energy CT in gouty nodules and bone destruction between patients with uric acid <420 μmol/L and those with uric acid ≥420 μmol/L (P>0.05). Conclusion Dual-energy CT scan has great diagnostic value in gouty arthritis and is worthy of clinical application.