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  • Title: The Role of Ultrasound Semi-Quantitative Scoring in the Diagnosis and Assessment of Gout and Hyperuricemia.
    Author: Shao Q, Wang J.
    Journal: J Ultrasound Med; 2024 Feb; 43(2):281-291. PubMed ID: 37853928.
    Abstract:
    OBJECTIVES: To develop an ultrasound semi-quantitative scoring system for the diagnosis and evaluation of gout and hyperuricemia. METHODS: This study included 348 male patients: 81 patients with asymptomatic hyperuricemia, 182 patients with gout, and 85 patients with other arthritis. Clinical data were collected, ultrasound was detected, gout activity score was calculated to assess disease activity, and statistical analysis was performed. RESULTS: Monosodium urate crystal deposition and subclinical arthritis were detected in 17 patients with asymptomatic hyperuricemia, with lesions concentrated in the metatarsophalangeal joint, ankle and peroneus-longus and brevis at rate of 91.8%. Gout was significantly higher than non-gouty arthritis in crystal scores (sum scores of double contour, aggregates, and tophi), but not in inflammation scores (sum scores of synovial hypertrophy, power Doppler [PD] activity, and tenosynovitis) and bone erosion. The optimal cut-off score for the diagnosis of gout by the crystal score was 2. The sensitivity, specificity, and AUC were 95.4%, 97.1%, and .965, respectively. Gout flare had higher inflammation scores than intercritical gout, while bone erosion scores were lower than intercritical gout. The active gout patients had higher ultrasound scores of tophi, bone erosion, and PD activity than the remission group (P < .001). The sensitivity, specificity and area under the receiver operating characteristic curve (AUC) for the identification with high disease activity gout by ultrasound semi-quantitative composite score were 76.2%, 84.2%, and .812, respectively. CONCLUSION: Ultrasound helps early identification of patients at risk in asymptomatic hyperuricemia. Ultrasound semi-quantitative scoring allows for more objective and accurate assessment of gout lesions, correlates with disease activity, and helps in the diagnosis and assessment of gout.
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