国人肺静脉系统的三维可视化

目的 对中国数字化可视人体(CVH)男1号肺静脉系统进行三维重建,研究肺静脉系统的解剖特点,为教学、影像诊断及胸部手术提供精确的肺静脉系统三维模型.方法 对中国数字化可视人体数据集连续断面图像进行连续追踪观察和图像配准,在包含肺的断面上分割肺静脉,对分割结果运用3DMed软件通过阈值分割算法进行三维重建.结果 本研究完整地重建出肺静脉系统,重建图像质量较高,可单独显示肺静脉系统三维模型,也可同时显示肺和肺静脉以及肺内其他管道系统三维模型,以显示肺内各结构的空间位置和毗邻关系,以上结构都可从任意角度进行观察并进行缩放.结论 本研究分析了肺静脉系统的组成及其在肺内的空间分布情况,实现了肺静脉系统的三维可视化.

THE 3D VISUALIZATION OF THE PULMONARY VENOUS SYSTEM OF CHINESE PEOPLE

Objective To build a digitized 3D model of the pulmonary venous system of Chinese people for the purpose of providing anatomic information of the pulmonary venous system for anatomic teaching, imaging diagnosis and surgical operation of pulmonary diseases. Methods The primal images from the first Chinese visible human data set of chest were converted into image sequence only cantaining the sections of pulmonary veins after manual registration and image segmentation. Then these images were imported into 3DMed software to build a 3D model of the pulmonary venous system through threshold registration algorithm. Results The three dimensional structures of the pulmonary venous system were reconstructed entirely. All reconstructed structures could be displayed individually or jointly, and could be rotated continuously on any plane. Conclusion The branches and the spacial characters of the pulmonary venous system can be clearly shown on the reconstructed 3D model. It will help anatomy teaching and provide morphological data for image diagnosis and lung operations.