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目的:探讨强直性脊柱炎(As)骶髂关节病变的螺旋CT表现特点,评介其诊断价值,以提高诊断及鉴别诊断水平。方法:对43例临床确诊为强直性脊柱炎患者的骶髂关节行螺旋CT扫描,对骶髂关节病变CT表现进行回顾性分析。结果:强直性脊柱炎骶髂关节病变螺旋CT表现特点为:病变主要累及骶髂关节滑膜部髂骨侧,关节软骨钙化、关节间隙改变、关节面毛糙、关节面及面下骨质硬化或吸收、骶髂韧带钙化。结论:螺旋CT扫描对强直性脊柱炎骶髂关节病变的诊断及鉴别具有很大的价值。
Objective: To investigate the spiral CT features of sacroiliac joint in patients with ankylosing spondylitis (AS) and evaluate its diagnostic value in order to improve the diagnostic and differential diagnosis. Methods: The spiral CT scan of sacroiliac joint in 43 clinically diagnosed patients with ankylosing spondylitis was retrospectively analyzed. Results: Spiral CT findings of sacroiliac joint lesions in ankylosing spondylitis were as follows: the lesion mainly involved the iliac side of the sacroiliac joint synovium, articular cartilage calcification, changes of joint space, rough articular surface, articular surface and subaqueous bony sclerosis or Absorption, sacroiliac ligament calcification. Conclusion: Spiral CT scan has great value in the diagnosis and differential diagnosis of sacroiliac joint disease in ankylosing spondylitis.