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 selected 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 images of 90 patients showed that, the CT scan detection rate was significantly higher than that of X-ray scan, the difference was statistically significant(P0.05); compared AS disease classification number, the number with grade 0-Ⅳ diagnosed by CT scan was more than that diagnosed by X-ray scan(P0.05), there were statistically significant differences between X-ray and CT examination in detection joint number of the low-level lesions(P0.05), but as for lesions of grade Ⅲ to Ⅳ, no obvious difference between two sets of inspection results. Conclusion CT scan has higher value in the diagnosis of patients with ankylosing spondylitis sacroiliac 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 classification, and is worthy of clinical promotion.