摘要
目的探坩麻川血管造影CT（computed tomography angiography，CTA）对椎动脉-寰椎复合体进行分制的临床意义。方法应用Mimics软件对225例患者的CTA资料进行三维重建，将椎动脉V3段与寰椎后弓峡部区域重建为椎动脉-寰椎复合体，根据二者关系进行分型。A型为常规型，椎动脉V3段位于寰椎后弓峡部之上，其中椎-寰上间距大于1．8am为A1型、0．6-1．8mm为A2型、小于0．6mm为A3型；B型为椎动脉变异型，其中B1为远离型、B2为后弓下走行型；C型为骨结构变异型，其中骨环结构闭合为Cl型，骨环结不小闭合为C2型。测量A1、A2型的椎-寰fi间隙。
Objective TO evaluate the clinical significance of classifying vertebral artery-atlas com- plex using angiographic CT （computed tomography angiography, CTA）. Methods The CTA data of 225 pa- tients were reconstructed three-dimensionally in Mimics. The region of V3 segment of vertebral artery and isthmus of atlas＇s posterior arch were reconstructed as vertebral artery-atlas complex, classify according to the relationship of the two. The complex types were classed into 3 types and 7 subtypes. Type A was conven- tional type, which means V3 segment locates above the islhmus of atlas. The distance between vertebral artel7 and atlas was larger than 1.8 mm in A1 subtype. The distance was between 1.8 and 0.6 mm in A2, and less than 0.6 mm in A3. Type B was variation of vertebral artery.
出处
《中华骨科杂志》
CAS
CSCD
北大核心
2013年第6期635-639,共5页
Chinese Journal of Orthopaedics
基金
国家自然科学基金（81271995）
关键词
寰椎
椎动脉
解剖学
局部
骨螺丝
骨折固定术
内
Atlas： Vertebral artery： Anatomy, regional
Bone screws
Fracture fixation, internal
