强直性脊柱炎早期骶髂关节炎的磁共振诊断价值

Diagnostic Value of MRI in the Diagnosis of Sacroilitis for Early Ankylosing Spondylitis

目的探讨磁共振成像(MRI)对强直性脊柱炎(AS)早期骶髂关节炎诊断的临床应用价值。方法对75例到本院进行特殊疾病鉴定的可疑AS患者,在1周内分别行双侧骶髂关节MRI和CT检查,依据纽约标准进行分级,分为早期(0～Ⅰ级)和晚期(Ⅲ～Ⅳ级)两组,分别进行X2检验。结果 CT和MRI对晚期(Ⅲ～Ⅳ级)骶髂关节炎炎的判断无明显统计学差异,对(0～Ⅱ级)的判断二者相差较大,对于AS的早期骶髂关节炎炎诊断MRI明显优于CT,具有统学计意义。结论 MRI对AS早期骶髂关节炎的诊断具有明显优越性。

Objective To evaluate the value of MRI in the diagnosis of sacroilitis for early ankylosing spondylitis.Method 75 questionable ankylosing spondylitis patients were scanned by CT and MRI of the sacroiliac joints within a week.According to the New York criteria for patients Classification,it can be divided into two groups,which are early stage（0-Ⅱgrade） and late stage（Ⅲ-Ⅳ）.Data from both groups were performed with chisquare test.Results There is no significant different between MRI and CT in the diagnosis of late stage SIJ whereas significant different has displayed in the diagnosis of sacroilitis for early ankylosing spondylitis has obvious superiority,which has statistical significanceetween MRI and CT.Conclusion MRI is more advanced in the diagnosis of SIJ.