痛风性关节炎的超声表现

目的 探讨痛风性关节炎的超声特征.方法 对确诊的5例痛风性关节炎患者19个病变关节的超声表现进行回顾性分析,总结痛风性关节炎的声像图特点.结果 19个关节中第一跖趾关节5个,膝关节8个,踝关节、肘关节、腕关节各2个.17个(89.4％)关节超声表现为软骨表面回声增强,与深面的骨性关节面强回声线形成“双边征”.13个(68.4％)关节表现为不同程度的关节腔积液,积液内可见漂浮点状强回声,振动后运动明显.11个(57.9％)关节内见滑膜增厚,彩色多普勒显示滑膜内部血流信号丰富或稀少.其中1例膝关节髌上囊处滑膜呈结节状明显增厚,范围约5 cm×2 cm,内见大量强回声点,后方伴声影.6个(31.6％)关节软骨超声表现为不规则形变薄,软骨下骨面粗糙、回声中断.4个(21.1％)关节周围软组织见稍高或强回声团,后伴或不伴声影.其中3个关节同时出现邻近骨皮质回声毛糙不平滑、连续性中断或缺损.结论 痛风性关节炎具有一定的超声表现,超声可能早期提示此病,具有一定的临床应用价值.

Ultrasonographic findings in gouty arthritis

Objective To explore the sonographic features of gouty arthritis.Methods The sonographic features of gouty arthritis were summarized by retrospectively studying the sonogram of 19 joints of 5 patients.Results Five the first metatarsophalangeal joints,8 knees,2 ankles,2 elbows and 2 wrists were investigated.Out of 19 joints,17(89.4％) had double contour signs,a hyperechoic and irregular band over the superficial margin of the articular cartilage.Joint effusions were seen in 13 of 19 joints (68.4％).Multiple hyperreflective foci could be seen in the joint fluid,which were obvious by shaking the probe.In 19 joints,11 (57.9 ％) had proliferation of the synovium identified,and proliferative synovium were revealed as hyperperfusion or hypoperfusion by color Doppler ultrasound.In one knee,the synovium proliferated obviously with involved area about 5 cm × 2 cm,and hyperechoic aggregates with acoustic shadow could be seen in it.Articular cartilage became irregularly thin and the hyperechoic outline of subchondral bone cortex became rough or even broke in 6 of 19 joint (31.6％).H omogeneous,hyperechoic aggregates with or without acoustic shadow in the soft tissue around the joint were seen in four joints (21.1 ％).Three in these 4 joints exited bone cortex erosions adjacent to aggregates.Conclusions Gouty arthritis has some specific sonographic features,ultrasound maybe usefully discover this disease in early period.