早期强直性脊柱炎脊柱病变的MRI征象分析

The MRI Characteristic Analysis of Spine Lesions in the Early Stage of Ankylosing Spondilitis

目的探讨MRI诊断早期强直性脊柱炎的价值。方法搜集30例经临床表现、实验室检查和影像学检查诊断为早期强直性脊柱炎患者的全脊柱及骶髂关节MRI检查资料,分析其好发部位、MRI表现、脊柱附属结构改变及发生率。结果 30例患者均出现骶髂关节炎的MRI改变及不同程度的脊柱及其附属结构改变。脊柱及其附属结构病变中,前纵韧带起止点炎出现较早,发生率较高(66.7%,20/30)。结论 MRI是诊断早期强直性脊柱炎的首选检查方法,除显示骶髂关节改变外,还可显示脊柱及其附属结构的早期改变。

Objective To investigate the value of MRI in the diagnosis of ankylosing spondilitis in early stage. Methods The MRI materials of the whole spine and the sacroiliac joints of 30 patients with ankylosing spondilitis in early stage diagnosed by clinical appearance and the laboratory results. The main charactersitic involved were marginal spondilitis,the Anderson lesions,the enthesitis of the paravertebral body,the synovitis of the apophyseal joint. Analysing the MR appearance,the predilection site and the incidence. Results 30 patients had positive MR appearance of sacroiliac joints and different degree of MR changes of the spine and accessory structure. Among the MR changes of the spine and accessory structure,the enthesitis of the anterior longitudinal ligament appeared early and had high incidence( 66. 7%,20 /30).Conclusion The MRI is the preferred method of diagnosing the ankylosing spondilitis,it can demonstrate not only the lesion of the sacroiliac joint but also the early changes of the spine and the accessary structure of ankylosing spondilitis.