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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 anatomy model of fetal lung vessels, which laid the foundation for the clinical research and basic medical teaching. Methods One case of 38-week-old fetal pulmonary vascular cast specimens was made and observed. The cast specimens were scanned by 128-slice spiral CT and Mxview workstation equipped with CT was used to reconstruct the fetal lung three-dimensional digitalized model. Results Fetal and pulmonary vascular cast specimens clearly show the distribution and direction of the blood vessels in the lung. The reconstructed fetal and pulmonary vascular three-dimensional model can be rotated at any angle along the arbitrary axis in the three-dimensional space of ordinary computer, and can be virtually cut at any angle Anatomy. Conclusion Vascular casting and helical CT scan can show the vessel orientation and distribution in the fetal lungs at different angles and in different layers, which provides a morphological basis for constructing a virtual platform for intrauterine surgery.