Performance of Ultrasound in the Diagnosis of Gout in a Multicenter Study : Comparison With Monosodium Urate Monohydrate Crystal Analysis as the Gold Standard
Objective: To examine the performance of ultrasound (US) for the diagnosis of gout using the presence of monosodium urate monohydrate (MSU) crystals as the gold standard. Methods: We analyzed data from the Study for Updated Gout Classification Criteria (SUGAR), a large, multicenter observational cross-sectional study of consecutive subjects with at least 1 swollen joint who conceivably may have go