强直性脊柱炎髋关节病变的MR与CT影像学表现研究

目的分析MR及CI在强自性脊柱炎髋关节病变中的诊断价值。方法选取我院收治的60例强直性脊柱炎疑似髋关节病变患者,作CT与MRI扫查,比较2种不同诊断方法在强直性脊柱炎髋关节病变中的应用价值。结果本组60例AS患者120个髋关节中,髋关节CT表现异常57例,阳性率为95.0%。CT征象以关节间隙狭窄为主,MR征象则表现为早期髋关节间隙后端狭窄,关节囊炎、BMFD、BME与起止点炎。结论 CT可显示髋关节骨质细微结构特点,但软组织分辨率低;MR软组织分辨率高,可清晰显示关节囊积液、起止点炎、BMFD与BME征象。

The Imaging Findings of MR and CT of Hip Joint Lesion in Ankylosing Spondylitis

Objective To analyze the value of MR and CI in the diagnosis of hip joint lesion in ankylosing spondylitis. Methods Sixty patients with suspected hip joint lesion in ankylosing spondylitis were examined by spiral CT and MRI scanning. The application value in the diagnosis of hip joint lesion in ankylosing spondylitis was compared between the two methods. Results Among the 60 patients (120 hip joints) with AS, CT findings of hip joints of 57 cases showed abnormalities, and the positive rate was 95.0%. The main finding of CT was joint space stenosis while the findings of MR showed early stage of the hip joint space back-end stenosis, articular capsulitis, BMFD, BME and enthesis imflammation. Conclusion CT can display the fine structure of the hip joint sclerotin. However, its resolution to soft tissues is lower than that of MR. The resolution of MR to soft tissues is high and it can clearly show the joint capsule effusion, enthesis imflammation, BMFD and BME signs.