腕关节的三维可视化研究

Study of visualization of the wrist joint

[目的]建立腕关节三维数字化可视模型。[方法]获取腕关节0.2 mm厚的薄层冠状断层标本,在计算机上对腕骨及主要韧带的断层图像轮廓进行数据分割、对位重建和三维显示。[结果]重建了腕关节桡、尺骨,远近两列(共8块)腕骨,掌骨(5块)及桡尺韧带、腕关节盘(三角纤维软骨)、关节盘同系物、桡月韧带、桡三角韧带、舟头韧带、桡舟头韧带、舟月韧带、月三角韧带、尺三角韧带、尺月韧带、三角头韧带、钩头韧带共28个结构的三维图像。在模型上可对上述结构进行单个结构的显示,也可以进行多个结构的分色显示、透明显示,同时也可以任意放大缩小和任意角度旋转观察。并且,所有结构在任意方向上的径线和角度均可适时测量。[结论]该腕关节三维可视化模型较清晰地反映了腕部骨及韧带的解剖关系,可从多个外科手术角度进行观察,可为腕关节外科手术提供重要的参考资料。

[Objectivel To establish digitized visible model of the wrist joint. [Method] Coronal sect ional images of a series of 0. 2 man - thick cryosecfions of wrist joint specimens were obtained. After registration and segmentation, the three - di- mensional computerized reconstruction of the carpal bone and arch - ligament and its adjacent structures were performed on PC. [ Result] For reconstructed Successfully 3D the structures model of wrist joint its adjacent 28 structures. This model can be displayed with single structure and its adjacent structures for wrist joint and can be displayed with several structures in different col- or and hyalinize. And it can be displayed from any direct ion. Moreover all structures can be measured through angle or line from any direction. [ Conclusion ] Three - dimensional reconstruction model of the wrist joint demonstrate the relation of anatomy between the carpal bone and ligament by poly - point of view and is meaningful for operations of the wrist joints.