摘要
目的 研究骶髂关节不全脱位的CT征象 ,探讨其对强直性脊柱炎 (AS)的诊断价值。资料与方法 临床与CT确诊的AS者 34例 ,正常对照组 2 3例 ,在骶髂关节轴位CT片中观察并测量双侧骶髂关节前缘关节面的相对位置 ,经统计学分析 ,确定骶髂关节不全脱位的CT诊断标准。应用该标准复诊最初CT诊断正常、但最后临床确诊的AS 2 0例 ,以确定该征象的诊断价值。结果 73.5 %的AS患者有不同程度的骶髂关节不全脱位 ,2 1.7%正常对照组骶髂关节前缘不齐。确诊组与正常对照组间脱位程度的差异有统计学意义。无其他CT表现的临床怀疑组中4 0 %有不全脱位 ,对该组中 8例有不全脱位者按AS治疗有效。
Objective To investigate CT sign of subluxation of sacroiliac joint, and to evaluate the sign in diagnosing ankylosing spondylitis (AS).Materials and Methods Thirty-four cases with CT-proved AS (study group) and 23 healthy individuals (control group) were collected. The level of sacroiliac subluxation was measured on axial CT scans. Through statistic analysis, the diagnostic standard of sacroiliac subluxation was formulated. Using this standard, 20 cases who were clinically diagnosed as ankylosing spondylitis but had normal CT findings were reviewed.Results Sacroiliac subluxation of different degree was seen in 73.5% of study group patients, in 40% patients with suspected AS and in 21.7% of control group subjects. The level and frequency of sacroiliac joint subluxation in study group was higher than that in control group. Treatment for AS was effective in 8 cases with sacroiliac subluxation.Conclusion Sacroiliac subluxation plays an important role in making early CT diagnosis of ankylosing spondylitis.
出处
《临床放射学杂志》
CSCD
北大核心
2004年第3期226-228,共3页
Journal of Clinical Radiology
关键词
骶髂关节不全脱位
强直性脊柱炎
诊断
CT研究
Ankylosing spondylitis Tomography, X-ray computed Sacroiliac joint Subluxation
