Abstract：Objective To explore the normal developmental condition of the fetal spinal canal of T12 vertebrae by using CT and analyze their development changes. Methods Spines of 30 fetal specimens of 23-40 weeks were scanned by 64-slices CT. Axial plane of the spinal canal of T12 vertebrae were reconstructed. There was no structural abnormality of the spine in these fetuses. Measurements obtained from the axial CTs included spinal canal anterior-posterior diameter, spinal canal width, and spinal cross-sectional area. Pearson correlation was made between gestational age and spinal canal. Results The spinal canal anterior-posterior diameter, width, and area of T12 vertebrae increased linearly with gestational age, the anterior-posterior diameter, equations of linear regression were: ＾Y(mm)=0.126+0.26×Xage(W), R2=0.857, P<0.01 ; the width, ＾Y(mm)=-0.411+0.274×Xage(W); R2=0.822, P<0.01; the area, ＾Y(mm2)=-52.09+3.43×Xage(W), R2=0.911, P<0.01, respectively. Conclusions The normal morphology of the spinal canal of T12 vertebrae can be clearly showed by CT, and the size of the spinal canal has a good correlation with gestational age. The diameter of the spinal canal of T12 vertebrae measured on CT imaging can be used to assess the spine development.
苗明明,林祥涛,崔志洁,彭伟,赵慧,张忠和,谢辉辉,石岩. 胎儿标本胸12椎体水平椎管发育的CT影像研究[J]. 中华解剖与临床杂志, 2017, 22(3): 177-180.
Miao Mingming, Lin Xiangtao, Cui Zhijie, Peng Wei, Zhao Hui, Zhang Zhonghe, Xie Huihui, Shi Yan. CT imaging on development of the fetal spinal canal of T12 vertebrae. Chinese Journal of Anatomy and Clinics, 2017, 22(3): 177-180.
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2017, Vol. 22 
