三维超声容积对比成像和断层超声成像技术观察胎儿脊髓栓系

发布时间：2018-03-24 13:18

本文选题：超声检查　切入点：成像　出处：《中国医学影像技术》2017年07期

【摘要】：目的探讨三维超声容积对比成像(VCI)及断层超声成像(TUI)技术观察胎儿脊髓圆锥(CM)所对应的椎体位置、脊髓腰膨大的大小及形态,评估是否存在胎儿脊髓栓系(TC)的价值。方法记录病例组17胎脊柱区病变或畸形伴TC胎儿的CM末端位置和腰膨大位置,测量脊髓腰膨大处的横径、前后径。并与300胎正常胎儿进行对比分析。结果随着孕周的增长CM末端位置上升,300胎正常胎儿的CM末端均位于L3或L3以上椎体水平。正常胎儿脊髓腰膨大的横径和前后径均与孕周有较好的线性关系,线性回归方程为:腰膨大横径(mm)=0.677+0.147×孕周(R~2=0.836,P0.05),腰膨大前后径(mm)=-0.994+0.152×孕周(R~2=0.894,P0.05)。与正常胎儿相应孕周正常值比较,病例组TC胎儿脊髓腰膨大的前后径减小(P=0.002),横径差异无统计学意义(P=0.082)。结论通过三维超声VCI及TUI技术对胎儿CM位置进行判定并分析脊髓腰膨大的形态变化,可为TC胎儿的产前诊断提供有价值的参考依据。
[Abstract]:Objective to investigate the position of vertebral body and the size and shape of spinal cord enlargement in fetal spinal cord cone (CMM) by three-dimensional volume contrast imaging (VCI) and tomographic imaging (TUI). Methods the location of CM terminal and lumbar enlargement of fetal TC fetus were recorded and the transverse diameter of spinal cord enlargement was measured in 17 cases of fetal spinal area lesion or malformation. Results with the increase of gestational weeks, the CM terminal position of 300 normal fetuses was increased. The CM ends of 300 normal fetuses were located at the vertebral level of L 3 or higher. The transverse diameter of spinal cord enlargement in normal fetuses. There was a good linear relationship between the anterior and posterior diameters and gestational age. The linear regression equation is as follows: the transverse diameter of lumbar enlargement is 0.677 0.147 脳 gestational week, the diameter of lumbar dilatation is 0.87 0.147 脳 gestational week, and the diameter of lumbar enlargement is 0.836 脳 P 0.05, and the diameter of lumbar enlargement is 0.9994 0.152 脳 gestational week, which is compared with the normal gestational week of normal fetus. In the case group, the anteroposterior diameter of spinal cord enlargement was reduced by P0. 002, and the difference of transverse diameter was not statistically significant. Conclusion the position of fetal spinal cord enlargement was determined by three dimensional ultrasound VCI and TUI techniques, and the morphological changes of spinal cord enlargement were analyzed. It can provide valuable reference for prenatal diagnosis of TC fetus.
【作者单位】：中国医科大学附属盛京医院超声科;
【基金】：国家“十二五”科技支撑计划课题项目(2014BA106B05) 中国医科大学附属盛京医院自由研究者基金(201209)
【分类号】：R445.1;R714.5

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