摘要
目的:使用三维CT曲线重建技术,显示颈椎钩突关节骨质增生对椎动脉的影响。材料与方法:用三维CT重建技术显示24例椎动脉型颈椎病患者的钩突关节骨质增生和椎动脉的关系。共观察192个钩突关节。RT线测量:上下椎体外缘的切线至钩突关节最外侧点垂直距离,即RT线。根据RT线的长度,将钩突关节对椎动脉的影响分为3度。1度:RT线≤1mm,椎动脉平直;2度:RT线为2~3mm,椎动脉迂曲;3度:RT线≥4mm,椎动脉狭窄。结果:三维CT曲线重建能直接显示椎动脉的迂曲/狭窄,1度改变者占77%;2度改变者为18%;3度改变者为5%,其中,C4、5和C5、6钩突关节骨质增生所引起的椎动脉迂曲和狭窄占91.0%。91.7%的患者有双侧椎动脉的迂曲/狭窄。结论:三维CT曲线重建技术能直接显示钩突关节和椎动脉的关系,对椎动脉型颈椎病的诊断和治疗有重要意义。
Objective: To demonstrate the effect of osseous hypertrophy of cervical Luschka's joints on vertebral artery (VA) with three-dimen-sional CT(3DCT) curved reformation technology. Materials and Methods: 24 cases of cervical spondylisis who had vertebral insufficiency were examined with 3DCT. The relationship of Luschka's joints and VA were shown. RT line was measured from cutting-line of lateral cortical margins of the cervical vertebra to outer cortical margines of Luschka's joints. According to the length of RT line, the cases were classified into 3 types. Type Ⅰ: RT line≤ 1mm, with straight VA. Type II: RT line = 2~3mm, with curved VA. Type III: RT line≥4mm, with narrow VA. Results: Type Ⅰ had 148/192 (77% ), Type II had 35/192 (18% ), type III had 9/192 (5% ); type I and Ⅲ were related to vertebral insufficiency; Of type Ⅱ and Ⅲ, 40/44 (91 % ) lied at C_4、5 and C_5、6. 91 % cases showed curved / narrow VA on bath sides. Conclusion: The relationship of Luschka's joints and VA can be demonstrated directly with curved reformation of 3DCT, which is very driportant in the diagnosis and treatment of vertebral insufficiency.
出处
《临床放射学杂志》
CSCD
北大核心
1998年第6期354-356,共3页
Journal of Clinical Radiology
关键词
三维CT
曲线重建
颈椎病
钩突关节
椎动脉
Three-dimensional CT, Curved reformation, Spendyliosis Luschka's joint, Vertebral artery