改良骶髂关节MR扫描技术在强直性脊柱炎诊断及区分炎症活动期、稳定期差异的研究

目的探讨改良骶髂关节MR扫描技术在强直性脊柱炎诊断及炎症活动期、稳定期的区分中的作用。方法 2016年6月-2017年6月收治的早期强直性脊柱炎骶髂关节病变患者28例,分别给予常规与改良骶髂关节MR检查,比较常规与改良MR对骨质异常、强直性脊柱炎病变程度以及炎症活动期与稳定期的检出率。结果改良MR诊断的关节面侵蚀、关节软骨肿胀和关节面骨质囊变检出率显著高于常规MR,差异有统计学意义(P<0.05);改良MRAS分级显著高于常规MR,差异有统计学意义(u=1.997,P=0.046);常规MR敏感度为55%,特异度100%,改良MR敏感度100%,特异度94%,改良MR诊断敏感度显著高于常规MR,差异有统计学意义(P<0.05)。结论改良骶髂关节MR扫描技术可以有效提高强直性脊柱炎的诊断能力,有利于区分炎症活动期、稳定期,值得推广和研究。

Effects on the Differential Diagnosis of Ankylosing Spondylitis and the Differentiation of Inflammatory Activity Period and Stable Period by Improved MR Scanning of Sacroiliac Joint

Objective To investigate the effect on the differential diagnosis of ankylosing spondylitis and the differentiation of inflammatory activity period and stable period by improved MR scanning of sacroiliac joint. Methods 28 patients with early ankylosing spondylitis and sacroiliac joint lesions were admitted from June 2016 to June 2017. Routine and improved sacroiliac joint MR examinations were performed, and the detection rates of bone abnormalities, ankylosing spondylitis level and active and stable periods of inflammation were compared. Results The detection rate of Articular erosion, swelling of articular cartilage, and osteoid cystic degeneration of articular surface in improved MR diagnosis was significantly higher than that in conventional MR diagnosis, with statistically significant difference(P<0.05). The AS classification of improved MR was significantly higher than that of conventional MR, and the difference was statistically significant(u=1.997, P=0.046). The sensitivity of conventional MR was 55%, and the specificity was 100%, the sensitivity of improved MR was 100%, and the specificity was 94%, the diagnostic sensitivity of improved MR was significantly higher than that of the conventional MR, and the difference was statistically significant(P<0.05). Conclusion The improved MR scanning technology of sacroiliac joint can effectively improve the diagnostic ability of ankylosing spondylitis, which is conducive to the differentiation of inflammatory activity period and stable period.