摘要
目的:通过对31例强直性脊柱炎(AS)骶髂关节CT扫描,总结AS骶髂关节的CT表现。方法:31例临床确诊为AS的患者,男21例,女10例,年龄14～64岁,平均24.5岁。全部病例行双侧骶髂关节CT平扫,就其CT表现进行分析。结果:31例中有30例骶髂关节异常,其中Ⅰ级5例(16.1%),Ⅱ级7例(22.5%),Ⅲ级16例(51.6%),Ⅳ级2例(6.5%)。骶髂关节早期CT表现为对称性关节面骨皮质粗糙,局限性微小皮质破坏,但关节间隙正常;进展期为双侧骶髂关节面广泛骨皮质破坏,呈锯齿状或毛刷状,局部骨质硬化明显,关节间隙增宽;晚期为关节僵直,关节面下骨质疏松。结论:骶髂关节CT检查有助于AS的早期诊断,提高诊断准确性,其骶髂关节的CT表现对临床病情监测有重要价值。
Objective： To assess the CT findings of sacroiliac joints changes in ankylosing spondylitis（AS）, CT scanning were performed in 31 cases with AS proved clinically. Materials and Methods： CT findings of sacroiliac joints who were clinically diagnosed as AS were analysed. Results： Thirty of the 31 cases had abnormal CT findings of the sacroiliac joints. Five cases belonged to grade Ⅰ （16.1%）, 7 cases were grade Ⅱ（22.5%）, 16 cases were grade Ⅲ（51.6%）, 2 cases were grade Ⅳ（6.5%）. In the early stage, sacroiliac joint of most cases had symmetric irregularity of articular surface, subcortical microcysts and mild sclerosis of iliac surface of joint. In advaced stage, sacroiliac articular surfaces were irregular with subcortical cystic destruction, showing serration or brush like deformity, sclerosis or hypertophic changes, and pseudo-widening or narrowing of joint space. Bony ankylosis of the joints with obliteration of joint space and osteoporosis or osteosclerosis were seen in the late or stable stage. Conclusion： CT scanning of sacroiliac joints could be helpful in diagnosis of AS, and helpful in clinical evaluation of the disease.
出处
《中国临床医学影像杂志》
CAS
北大核心
2006年第3期130-132,142,共4页
Journal of China Clinic Medical Imaging
