高频超声在类风湿性膝关节炎诊断中的应用

目的：探讨高频超声检查在类风湿性关节炎膝关节病变诊断中的价值。方法：应用高频发声及彩色多普勒技术研究了３２例类风湿性关节炎患者６４个膝关节二维志趣超声图像及彩色多普勒血流改变并与Ｘ线检查进行比较。结果：（１）关节囊积液６２个（９６．８７％），间距２．９￣２５．６ｍｍ；（２）６１个关节囊滑膜增厚（９５．３１％）；厚度２．２￣１６．９ｍｍ，腔面毛糙不平，部分可见绒毛状突起；（３）滑膜血管增生，４７个关

The Application of High-frequency Ultrasonography in Diagnosis of Rheumatoid Knee

Objective:To evaluate the diagnostic value of high frequency ultrasound in diagnosis of rheumatoid knee.Methods:Twenty three patients with 46 knee joints rheumatoid arthritis (RA) were studied with high frequecy ultrasound (HFU) and color Doppler flow imaging (CDFI). Results:(1) 62 knee joints showed synovial effusion. 2 9~25 6mm in width. (2) The synovial membrane thickness increased in 61 joints, furrowed synovial membrane and fuzzy synovial villi could be seen in some cases. (3)Low velocity mode CDFI revealed blood flow in 47 thickened synovial membrane, illustrating vascular proliferation of the synovial membrane. (4)Cartilage damage was detected in 46 joints and bone erosions in 36 knee joints. The knee joint swelling was reported in 3 patients by plain radiography. No synovial effusion or synovial proliferation was showed by x ray examination in all the 23 patients.Conclusion: HFU is a sensitive and accurate method to reveal fundamental pathological changes of rheumatoid knee, it is rather superior to radiography in detecting synovial effusion, synovial proliferation, early cartilage damage and bone erosion.