早期类风湿关节炎的磁共振改变及其在诊断中的价值

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

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M R I、X-ray及常规血清检查。结果95.3%患者出现M R I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M R I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。

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.