中文摘要：

目的：通过对胸椎椎基静脉孔（BF）的数字化观测，明确其解剖位置、形态特点，为临床应用提供参考依据。方法40例成人胸椎CT扫描数据，运用Mimics15.0软件重建测量BF宽（BFW）、高（BFH）、深（BFD）；BF距椎体上、下终板（VHU、VHB）和左、右缘（VWL、VWR）间距；观察其在椎体中的位置与形态。结果（1）胸椎BFW总体呈V形分布，T6为最小值（3.69±1.29 mm）；BFH在T1~3趋于平稳， T4～6渐减，T7～11渐增；BFD在T1～3渐增，T3～10趋于平稳，T10～12渐减。（2）BF距上终板与下终板间距总体呈上升趋势，T1最小：VHU为（7.05±1.27）mm，VHB为（7.21±0.87）mm，T12最大：VHU为（11.00±1.10） mm， VHB为（11.37±1.48） mm；距左、右缘间距在T1～4渐减，T5～12渐增，T4最小：VWL为（10.50±1.40） mm，VWR为（10.81±1.66） mm，T12最大：VWL为（15.74±2.55）mm，VWR为（16.23±2.82）mm。结论胸椎椎体后壁近中央处均存在BF,其形态结构复杂且在不同个体、不同节段中均存在差异。BF在T1～8、T10、T11位于椎体后壁近中央，T9和T12稍偏向左侧。BF在T1～3、T10～12形似棱锥体形,而T4～9形似长方体形。

英文摘要：

Objective By digitizing the measurement of the basivertebral foramen for thoracic vertebrae to discuss the basivertebral foramen （BF） of thoracic spine （T1~12）, including the anatomical location, the form and the differences between different vertebral bodies. Methods The 40 healthy adults underwent multi- slice CT thin- layer scan and sagittal CT reconstruction images, using Mimics 13.0 software measurement;the following indices were observed：BF wide （BFW）, deep （BFD）, high （BFH） in the absolute value;the distance of BF to the vertebral end plates and to the left and the right vertebral edges was measured;the location and shape of the vertebral foramen was observed. Results （1）BFW assumed an overall V-shaped distribution. The min was T6; BFH was steady in T1~3, gradually declining in T4~6, and gradually increasing in T7~11; BFD was graduallyincreasing in T1~3, steady T3~10 , and gradually decreasing in T10~12.（2） Vertebral body up（VHU） and vertebral body below（VHB） of BF are gradually increasing. The min was T1 （VHU 7.05 ± 1.27 mm,VHB 7.21 ± 0.87 mm）, the max was T12（VHU 11.00 ± 1.10 mm,VHB 11.37 ± 1.48 mm）. Vertebral body left （VWL） and vertebral body right（VWR） were gradually decreasing in T1~4, gradually increasing in T5~12, the min was T4（VWL 10.50 ± 1.40 mm,VWR 10.81 ± 1.66 mm）, the max was VWL in T12 （VWL 15.74 ± 2.55 mm,VWR 16.23 ± 2.82mm）. Conclusion （1） There are many BF inequality of size existent in the middle of vertebral thoracic body;These construction are complex and have difference between each individual segments. （2）The shape of BF in sagittal and coronary sections are anomalism, triangle, rectangle and 11%visible osseous separation. （3）The BF in T1~8、T10、T11 adjoin the centre of vertebral body＇s posterior paries, and T9 and T12 have left deviation.