X线、CT对强直性脊柱炎骶髂关节病变诊断的临床应用价值

Clinical Diagnostic Value of X-ray and CT in Diagnosing Ankylosing Spondylitis Sacroiliac Joint Disease

目的：比较X线、CT对强直性脊柱炎骶髂关节病变诊断的价值。方法：回顾性分析2011年4月-2015年5月在某院被确诊为强直性脊柱炎的57例患者的X线和CT的影像资料,入院后对所有患者均行X线和CT检查,对诊断强直性脊柱炎的发现率进行统计比较。结果：CT提高了0级、Ⅰ级和Ⅱ级的诊断级别,差异有统计学意义（P〈0.05）;对于Ⅲ、Ⅳ级的诊断,两者诊断差异不显著,差异无统计学意义（P〉0.05）。X线和CT在骶髂关节的影像征象均表现为关节面模糊、骨侵蚀、骨硬化、关节间隙变化和脊柱强直,但CT对上述影像征象发现率上明显高于普通X线,差异均有统计学意义（P〈0.05）。结论：CT对强直性脊柱炎骶髂关节病变的诊断价值明显优于X线,但X线检查方法简单,成本低,可做为首选的筛查方法之一。

Objective： To compare the diagnostic value of X-ray and CT in diagnosis of ankylosing spon-dylitis. Methods： The X-ray and CT imaging features of 57 cases of patients with ankylosing spondylitis from April 2011 to May 2015 were retrospectively analyzed. After administration, all the patients received X-ray and CT examination,compare the diagnostic rate of ankylosing spondylitis. Results： The diagnostic levels of grade 0 ,grade Ⅰ and grade Ⅱ were improved by CT , and the difference was statistically significant （P 〈 0.05）.The difference was not statistically significant （P 〉0.05） for the diagnosis of grade Ⅲ and Ⅳ. The imaging features of X-ray and CT at the joint were both vague surface？ bone erosion, bone sclerosis, joint space changes and spine rigidity, but the rate of CT on the imaging findings was significantly higher than that of the plain X-ray,the difference was statistically significant（P 〈0.05）. Conclusion： The diagnostic value of CT in the diagnosis of ankylosing spondylitis is superior to X-ray, but X-ray is simple and cheap, and can be used as the preferred method of screening.