X 线片与 CT 对强直性脊柱炎骶髂关节病变的临床诊断价值

目的探讨CT及X线对于强直性脊柱炎（AS）骶髂关节病变的临床价值。方法选择2010年3月-2012年3月该院收治的90例强直性脊柱炎（AS）骶髂关节病变患者作为观察对象，分别采用CT平扫及X线扫描。分析研究强直性脊柱炎（AS）骶髂关节病变在CT平扫及X线下病变程度以及表现。结果经不同检测后，90例患者影像显示，CT平扫检出率明显高于X线扫描，差异有统计学意义（P〈0．05）；AS病变分级诊断人数比较，0级一Ⅳ级诊断人数中CT人数高于X线人数（P〈0．05），X线与CT检查在病变级别较低时检测关节数存在差异（P〈0．05）；UI级到Ⅳ级病变，两组检查结果无明显差异。结论临床应用CT平扫对强直性脊柱炎（As）骶髂关节病变诊断价值较高，更易观察出细小部分及早期病变，为骶髂关节病变分级提供更为明确的依据，且误诊率低，值得临床推广使用。

The Value of X-ray and CT in the Diagnosis of Sacroiliac Joint of Ankylosing Spondylitis

Objective To discuss the clinical value of CT and X-ray in sacroiliac joint of ankylosing spondylitis（AS）. Methods 90 cases of patients with sacroiliac joint in ankylosing spondylitis admitted in our hospital from March, 2010 to March, 2012 were se- lected as the observation objects, and CT scan, X-ray scan was performed in them, respectively. The lesions and performance of sacroiliac joint in ankylosing spondylitis by CT scan and X-ray were analyzed and studied. Results After the detections, the im- ages of 90 patients showed that, the CT scan detection rate was significantly higher than that of X-ray scan, the difference was sta- tistically significant （P〈0.05）; compared AS disease classification number, the number with grade 0-1V diagnosed by CT scan was more than that diagnosed by X-ray scan （P〈0.05）, there were statistically significant differences between X-ray and CT examina- tion in detection joint number of the low-level lesions （P〈0.05）, but as for lesions of grade 11I to lg, no obvious difference between two sets of inspection results. Conclusion CT scan has higher value in the diagnosis of patients with ankylosing spondylitis sacroil- iac joint lesions in clinical practice, which can find the small part and early lesions more easily with low misdiagnosis rate, and provide a more clear reference for sacroiliac joint lesion classifieation, and is worthy of clinical promotion.