中文摘要：

目的获取健康成人胸腰段椎体（T12-L3）椎基静脉孔（basivertebral foramen，BF）的基本结构参数、形态特征等初步资料，为进一步研究BF与临床相关疾病提供基本的解剖学资料。方法对36例健康成人胸腰段椎体进行螺旋CT薄层扫描，对每个节段单独进行正中矢状位和横断位重建。在重建图像上，测量BF宽（BFW）、深（BFD）、高（BFH）的绝对值和相对值（BFWr、BFDr、BFHr）；测量BF距椎体左右边缘和上下终板的距离。应用SPSS11．5统计学软件对上述数据进行统计学分析。结果81％的BF表现为三角形或梯形；6％BF内部出现骨性间隔。相同测量节段的BFW、BFD和BFH最大值接近或超过同一测量平面椎体宽、深和高的1／3，平均宽、深和高接近或超过同一测量平面椎体的25％。在T12和L3，BF距椎体两端距离差异无统计学意义（P〉0．05）。BF更靠近于上终板（P〈0．05）。在不同测量节段，BFW、BFH、BFWr、BFHr的均数值差异均无统计学意义（P〉0．05）；而BFD和BFDr在k更大。性别与BF各测量参数无相关性，年龄与L1 BFHr和L2 BFHr相关，而体重指数与L1BFH、L2BFw、L3BFH、L3BFHr相关。结论本研究检测的椎体后缘均存在BF。BF最常见的形态结构为三角形或梯形，它更靠近上终板。在不同个体，BF的物理参数存在较大差异。

英文摘要：

Objective To observe the morphological features of the basivertebral foramen （BF） in thoracolumbar （T12, Li, L2 and L3）. Methods A total of 36 health adults were underwent multi-slice CT thin slice scans and three-dimensional reconstruction. In the horizontal and sagittal CT reconstruction images, BF weight （BFW）, BF depth （BFD）, BF high （BFH）, BF relative to the body weight （BFWr）, BF relative to the body depth （BFDr）, and BF relative to the body high （BFHr）, were measured. The distance between the BF and each side in the horizontal and sagittal CT images were also measured. The correlation between the measured parameters of BF and the gender, age, body mass index （BMI） were analyzed statistically. Results 81% BF was triangular or trapezoid. There was a bone interval within 6% BF. In the same level in 36 cases, the maximum of BFW, BFD and BFH were approximately 1/3 vertebral body in the same plane. The average BFW, BFD and BFH were approximately 25% vertebral body in the same plane. In all four levels, the dis- tance from the BF to the cranial endplate was shorter than to the caudal endplate （P〈O.05）. The mean BFW, BFH, BFWr, BFHr in different levels were no significant difference（P〉O.05）. The mean BFD and BFDr in L3, however, were greater than other levels. There were no significant correlations among gender and BFW, BFWr, BFD, BFDr, BFH, BFHr. There was a correlation between the age and L,BFHr and L2BFHr, and a correlation between BMI and L1BFH, L2BFW, L3BFH and L3BFHr. Conclusion There was a BF in all spec- imens. The most common appearance of BF was triangular or trapezoid. BF was closer to the cranial endplate in all four levels in the sagittal CT images. Variations of BF were significantly different in individuals.