CT及MRI在强直性脊柱炎骶髂关节病变分级及检出率中的应用价值

Application value of CT and MRI in classification and detection rate of sacroiliac joint lesions in ankylosing spondylitis

目的研究CT及MRI对强直性脊柱炎骶髂关节病变分级及检出率的应用价值。方法选取2015年1月至2017年12月我院确诊为强直性脊柱炎的86例患者,对患者分别行CT和MRI检查,比较两种检查诊断结果。结果 MRI在关节面侵蚀、关节面下骨质囊变和关节面增生硬化方面的检出率显著高于CT检查(P<0.05);CT检查诊断强直性脊柱炎骶髂关节病变的0级检出率高于MRI检查,而Ⅰ级检出率显著低于MRI检查(P<0.05);两种方法的关节间隙增宽或狭窄检出率、关节软骨肿胀检出率以及Ⅱ、Ⅲ、Ⅳ级检出率比较无显著差异(P>0.05)。结论在诊断强直性脊柱炎骶髂关节病变中MRI的诊断价值比CT高。

Objective To study the application value of CT and MRI in classification and detection rate of sacroiliacjoint lesions in ankylosing spondylitis. Methods A total of 86 ankylosing spondylitis patients in our hospital from January2015 to December 2017 were selected as the subjects. They were given CT and MRI examination respectively. Thediagnostic results of two kinds of examinations were compared. Results The detection rates of articular surface erosion,subclavian cystic degeneration and articular surface hyperplasia by MRI examination were higher than those by CTexamination （P〈0.05）. The detection rate of grade 0 in diagnosis of sacroiliac joint lesions in ankylosing spondylitis by CTwas higher than that by MRI, but the detection rate of grade 玉 was significantly lower than that by MRI（P〈0.05）. Therewere no statistical differences in the detection rates of joint space widening or stenosis, the detection rate of articularcartilage swelling and the detection rates of grade II, III and IV between the two methods（P〈0.05）. Conclusion Thediagnostic value of MRI is higher than CT in the diagnosis of sacroiliac joint lesion in ankylosing spondylitis.