早期类风湿关节炎的磁共振改变及其在诊断中的价值

目的探讨核磁共振检查在早期类风湿关节炎诊断中的意义.方法对42例疑似早期类风湿关节炎患者同时行MRI、X-ray及常规血清检查.结果 95.3%患者出现MRI改变,关节积液18例(其中2例合并骨髓水肿),关节软骨水肿、变性、破坏8例,骨侵蚀、关节间隙狭窄5例,骨髓水肿4例,韧带及副韧带增厚3例,腱鞘膨大积液6例.结论 MRI有助于早期类风湿关节炎的诊断,是一种比X线更敏感的检测方法.

Changes and diagnosis value of magnetic resonance imaging in early rheumatoid arthritis

To evaluate the potentials of magnetic resonance imaging(MRI) in the diagnosis of early rheumatoid arthritis(RA). 42 consecutive RA patients were included in the study. Besides routine assessments, MRI of wrist and/or hands were performed in the whole group. Of the 42 patients examined at baseline, 40 patients showed abnormal changes, the positive rate is 95.3%. Many manifestations of RA can be visualized on MRI, such as articular cavity effusion (18/42), cartilage edema, degeneration and destruction (8/42), bone erosion and space narrowing (5/42), bone marrow edema (4/42), ligament/collateral ligament thickening (3/42), tendo sheath expanding and effusion (6/42). [Conclusion] MRI has higher sensitivity than X-ray and it is a useful tool to diagnose early RA.