多普勒血流超声医学图像的动态三维重建

Dynamic 3D Reconstruction of Doppler Flow Ultrasound Medical Images.

目的将超声医学图像三维重建技术与多普勒血流成像技术结合起来 ,实现超声血流图的动态三维重建。方法通过对多普勒血流图的彩色编码方式的研究 ,利用多普勒血流图中ColorBar的信息 ,解决了从原始多普勒血流图中分离解剖结构和功能信息的问题 ,实现了心腔内血流的动态三维重建及与心脏解剖结构的三维融合显像。结果对临床人体实验获取的超声血流图像进行三维重建 ,所得重建图中血流信息与解剖结构之间的相互关系正确 ,与心脏解剖生理情况相符 ,证明了方法的可行性和有效性。结论结合超声医学图像三维重建技术和多普勒成像技术 ,实现超声医学图像功能三维重建 ,提供更多的医学信息 ,是超声医学成像技术的发展方向 。

Objective To implement dynamic 3D reconstruction of ultrasonic flow images by the technique of 3D reconstruction of ultrasonic medical images combined with Doppler flow imaging method. Method Through analyzing the color coded mode of Doppler flow images and utilizing the Color Bar in DFI provided by ultrasound system, the information of anatomical structure and blood flow velocity were separated from original DFI images. Then 3D reconstruction of blood velocity and its fusion display with 3D anatomical structure was implemented. Result Clinical experiments showed that in vivo blood flow in heart cavity could be shown in 3D space simultaneously with anatomical structure of the heart, and the relationship between them was consistent with cardiology. The images rendered in such a way could show more medical information than that in traditional methods. Conclusion The combination of 3D reconstruction of ultrasonic medical images and Doppler imaging technique could realize functional 3D reconstruction of ultrasonic medical images so as to give more medical information. It would have great potential application and present a new future for ultrasonic medical imaging.