三维CT重建对先天性髋关节脱位的临床价值  

Clinical application of three-dimensional CT in congenital dislocation of hip

作　　者：张劲松[1] 孙晶[1] 宦怡[1] 彭勇[1] 李昌宏[1] 赵黎[2] 黄耀添[2] 李建武[2] 李明全[2] 

机构地区：[1]第四军医大学西京医院放射科,西安市710032 [2]第四军医大学西京医院骨科,西安市710032

出　　处：《中国创伤骨科杂志》2001年第3期194-197,共4页

摘　　要：目的 探讨三维CT重建在先天性髋关节脱位（CDH）的临床应用。方法 本组CDH患儿22例,其中双髋脱位15例,单髋脱位7例,另有正常髋2例,共计患髋37个,正常对照髋11个。采用Picker公司PQ6000螺旋CT机,在独立工作站进行表面遮盖成像（SSD）、最大密度投影（MIP）、多平面重建（MPR）和相关数据测量。结果 分别对股骨头颈、髋臼及臼关系行三维直观显示,运用MPR技术测量了髋臼指数（AI）和股骨颈前倾角（FNA）。结论 三维CT可以直观、全面及分解地显示髋关节结构,对于股骨头、髋臼形态和头臼关系的显示具有常规X线和普通CT平扫所无法比拟的优越性,加之更加精确的测量,大大提高了术前诊断的科学性和手术的预见性,为手术方案的制定提供了新的客观依据。Objective Aim to evaluate the clinical application and importance of the reconstruction of three-dimensional (3D) CT on congenital dislocation of hip joint (CDH). Methods There were 22 patients with the diagnosis of CDH in this project , including 15 bilateral involvements and 7 unilateral involvements as well as two normal hips. In total, there were 37 dislocated hips and 11 hips for control. The patients were examined with spiral CT (PQ 6000, Picker Co. ). The 3D pictures were taken and the relevant measurements were made in terms of SSD, MIP and MPR on an independent computer workstation. Result The 3D reconstruction techniques were successfully used to show femoral head, acetabulum and the relationship between acetabulum and femoral head respectively. The technique of MPR was used to measure the acetabular index (AI) and femoral neck anteversion (FNA). Conclusion The 3D CT of hip joint provides more information of the imaging and is a very useful technique for the diagnosis and planning the operation of CDH.

关 键 词：三维CT 先天性髋关节脱位 髋臼指数 前倾角 儿童 

分 类 号：R684.7[医药卫生—骨科学]