强直性脊柱炎骶骼关节早期改变应用X线、CT、MRI检查技术分析

目的探讨强直性脊柱炎骶骼关节早期改变应用X线、CT、MRI检查意义。方法本组强直性脊柱炎患者43例早期受累骶骼关节采用X线、CT、MRI检查进行回顾性分析。结果 X线检出病变关节25侧,CT检出病变关节61侧,MRI检查病变关节76侧;MRI和CT骶骼关节数检出率显著高于X线,具有统计学差异（P〈0.05）;MRI骶骼关节数检出率显著高于CT,具有统计学差异（P〈0.05）。结论三者结合能够准确反映强直性脊柱炎骶骼关节早期改变,MRI可显示X线和CT检查观察不到的细微病变,且可进行准确分级。

Analysis on the Effects of X-ray,CT and MRI for the Early Changes of Sacroiliac Joint in Ankylosing Spondylitis

Objective To study the values of X-ray, CT and MRI for early change of sacroiliac joint in ankylosing spondylitis. Methods 43 cases of patients with ankylosing spondylitis were retrospectively analyzed with X-ray, CT and MRI for their in- volved sacroiliac joints. Results 25 cases had detected lesion side by X-ray, 61 cases by CT, and 76 cases by MRI; Detection rate of sacroiliac joint by MRI and CT were significantly higher than that of X-ray, and there were statistical differences （P〈0.05）; De- tection rate of sacroiliac joint by MRI was significantly higher than that of CT, and there were statistical differences （P〈0.05）; Conclusion The combination of the three technologies can accurately reflect the early change of sacroiliac joint in ankylosing spondylitis. MRI can display the subtle lesions that X-ray and CT cannot examine and accurately classify them.