The angle formed by the vertebral artery groove around the lateral mass of the atlas was ( 62.456 ± 4.662 ) ° on the left and ( 63.612 ± 2.310 )° on the right .

椎动脉 沟绕寰椎侧块成角：左侧为（62.456±4.662）°，右侧为（63.612±2.310）°。

The diameter of the vertebral artery may be estimated by observing through radiography the size and depth of the lateral aperture of the canal transversarium of the axis foramen transversarium of the atlas and vertebral artery groove or ring of atlas .

用X线片观察枢椎横突管外侧口、环 椎横突孔、环 椎 椎动脉 沟和椎动脉环的大小和深浅可以预测椎动脉管径。

The asymmetry of the vertebral artery groove was observed too .

观察两侧 椎动脉 沟是否存在不对称。

Objective : To provide anatomical data of vertebral artery groove for clinical ?

目的：为临床、 科研提供 寰椎 椎动脉 沟的解剖学资料。

Mechanisms of Injection of Vertebral Artery Groove in the Treatment of Vertebral Artery Type of Cervical Spondylosis

椎动脉 沟注射治疗椎动脉型颈椎病及其机理的研究

Result the parameters of posterior arch lateral mass vertebral artery groove 、 axis length of screw pass via posterior arch and lateral mass projection and direction of screw were measured .

结果测量出寰椎后弓、侧块、 椎动脉 沟、后弓侧块螺钉通道的轴线长度，及后弓进钉点和进钉方向等参数。