胎肺血管的三维重建及临床意义

Three-dimensional reconstruction and clinical significance of fetal pulmonary vessels

目的建立胎肺血管的三维可视化解剖模型,为临床科研和基础医学教学奠定形态学基础。方法制作和观察1例38周胎肺血管铸型标本,利用128层螺旋CT对铸型标本进行扫描和CT自带Mxview工作站进行重建胎肺三维数字化模型。结果胎肺血管铸型标本清晰地显示肺部血管分布及走向情况,重建的胎肺血管三维模型可在普通计算机的三维空间内沿任意轴旋转任意角度、缩放,且可进行任意角度的虚拟切割解剖。结论采用血管铸型和螺旋CT扫描能多角度、多层面显示胎儿肺部的血管走向和分布,为构建宫内手术虚拟平台奠定形态学基础。

Objective To establish a three-dimensional visual anatomical model of fetal pulmonary vessels to lay a morphological foundation for clinical research and basic medical teaching. Methods A 38-week fetal pulmonary vascular cast specimen was prepared and observed. 128-slice spiral CT was utilized to scan the cast specimens. Furthermore, build-in Mxview workstation of CT was applied to reconstruct three dimensional digital model. Results The cast specimen of fetal pulmonary vessles displayed clearly the distribution and trend of pulmonary vessels. The reconstructed three- dinlensional model of fetal pulmonary vessels could rotate with any angle and scale in the three-dimensional space of the ordinary computer, and virtual cutting anatomy could be performed at any angle. Conclusion The vascular casting and spiral CT scanning were combined to display the trend and distribution of fetal pulmonary vessels at multiple angles and dimensions, which laid a foundation for the construction of the virtual platform of intrauterine operation.