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目的:探讨强直性脊柱炎骶髂关节病变的CT表现。方法:收集分析我院52例强直性脊柱炎患者的骶髂关节CT图像资料。结果:50例患者骶髂关节有异常表现,早期:骨关节面受侵蚀,关节面不光整,关节间隙正常;后期:关节面不光滑,关节面下骨质呈虫蚀状改变,关节间隙变窄,最终关节间隙消失,关节强直。结论:骶髂关节的CT检查有助于强直性脊柱炎患者的早期诊断。
Objective: To investigate CT findings of sacroiliac joint lesions in ankylosing spondylitis. Methods: The CT images of sacroiliac joint in 52 patients with ankylosing spondylitis in our hospital were collected and analyzed. Results: There were abnormal sacroiliac joints in 50 patients. In the early stage, the articular surface was eroded, the articular surface was not smooth and the joint space was normal. In the later stage, the articular surface was not smooth, Narrow, the final joint space disappears, ankylosis. Conclusion: CT examination of sacroiliac joint is helpful for the early diagnosis of ankylosing spondylitis.