强直性脊柱炎骶髂关节病变的CT表现  

CT findings of sacroiliac joint lesion in the patients with ankylosing spondylitis.

作　　者：李春生[1] 胡元明[1] 魏玮[1] 

机构地区：[1]广州中医药大学深圳附属医院影像科,广东深圳518033

出　　处：《中国冶金工业医学杂志》2005年第4期384-385,F002,共3页Chinese Medical Journal of Metallurgical industry

摘　　要：目的评价CT对强直性脊柱炎骶髂关节病变的诊断价值。方法分析150例临床明确诊断的强直性脊柱炎病例的骶髂关节CT检查资料。结果150例患者按CT表现分为4期,Ⅰ期(36例)关节面皮质白线中断或白线增宽、模糊、密度减低,病变多局限于髂骨侧,关节间隙正常。Ⅱ期(26例)关节面呈“毛刷状”改变,骨质增生增厚明显,关节面下骨质呈小囊状改变,关节间隙无明显改变。Ⅲ期(49例)关节面明显骨质破坏,呈“锯齿状”骨质缺损,关节间隙不规则狭窄。Ⅳ期(39例)韧带骨化,关节骨性强直,关节间隙消失,骨质明显疏松、硬化。结论CT能清晰显示骶髂关节的微细结构,对骶髂关节早期病变的诊断有较高价值。Objective:To retrospectively analyze the appearances of sacroiliac joint(SIJ)with ankylosing spondylities(AS)and to assess the usefulness of CT in the diagnosis.Methods:CT features of sacroiliac joints 150 cases with AS proved clinically were analyzed.Results:There were stage IV in CT features.In stage Ⅰ,Symmetric or asymmetric involved of SIJ were found.The manifestation was vague articular face,interrupted joint cortex.In stage Ⅱ,brush-like joint face,subcortical cystic destruction were remarkable,and no remarkable narrowed joint space.In stage Ⅲ,serrated like joint face,and irregularly narrowed joint space were found.In stage Ⅳ,ossification of ligament,bony ankylosis of the joint with obliteration of joint space and osteoporosis or osteosclerosis were found.Conclusions:CT scan can not only reveal clearly the small constructions of the sacroiliac joint but also has higher sensitivity and accuracy during the early diagnosis of AS.

关 键 词：强直性脊柱炎 骶髂关节 断层摄影术 X线计算机 

分 类 号：R593.23[医药卫生—内科学]