Hale J D, Valk P E, Watts J C, Kaufman L, Crooks L E, Higgins C B, Deconinck F
Radiology. 1985 Dec;157(3):727-33. doi: 10.1148/radiology.157.3.4059560.
Multisection, dual-echo magnetic resonance (MR) transaxial images of blood vessels contain both anatomic and qualitative information about flow. Even so, the images are produced as a series of two-dimensional tomographic sections from which full visualization of connected structures is difficult. A computer algorithm was developed that automatically detects flowing blood based on pixel intensity and calculated T2 and provides reconstructed views of vessels while analyzing and displaying flow characteristics. Images of abdominal vessels, aortic aneurysms, and the heart were encoded by flow and color to demonstrate depth. In addition, these data were reconstructed to derive a more accurate assessment of patency. With this technique, transaxial images can be used to analyze flow patterns, determine patent areas, and visualize all levels of vessels in a single image.
多层面双回波磁共振（MR）血管横轴位图像包含有关血流的解剖学和定性信息。即便如此，这些图像是作为一系列二维断层切片生成的，从中很难完整可视化相连结构。开发了一种计算机算法，该算法基于像素强度和计算出的T2自动检测流动血液，并在分析和显示血流特征的同时提供血管的重建视图。腹部血管、主动脉瘤和心脏的图像通过血流和颜色编码以显示深度。此外，对这些数据进行重建以更准确地评估通畅情况。通过这项技术，横轴位图像可用于分析血流模式、确定通畅区域，并在单一图像中可视化血管的各个层面。
