【摘要】 笔者报告了２８例经手术和病理证实的膝关节空气造影后ＣＴ扫描诊断的滑膜病变，其中血管瘤１例、滑膜结核２例、滑膜皱襞综合征４例、色素沉着绒毛结节性滑膜炎３例、滑膜炎症８例、关节内游离体１０例。结果表明，膝关节空气造影后ＣＴ扫描在发现滑膜病变，特别对于滑膜血管瘤、滑膜结核的早期改变和关节内游离体位置的显示上要优于单纯膝关节空气造影。其诊断敏感性为９２．８％；特异性为９３．２％；准确性为９６．４％。更多还原

【Abstract】 cases of svnovial diseases studied with CT after air contrast examination of knee were reported.There were 1 synovial hemangioma,2 synovial tuberculosis, 4 synovial plicae syndrome,3pigmented villous nodular synovitis,8 synovitis and 10 intra-articular loose bedies. The sensitivity and specificity of CT diagnosis after air contrast was better than conventional arthrography particularly synovial hemangioma,early diagnosis of synovial tuberculosis and demonstration of intra-articular loose bedies,the sensitivity,specificity and accuracy of CT diagnosis were 92.8%, 93.2%and 96.4%re-spectively.更多还原