MR imaging of blood vessels using three-dimensional reconstruction: methodology.
MR imaging of blood vessels using three-dimensional reconstruction: methodology.
复制标题
使用三维重建的血管磁共振成像：方法论。
DOI：
10.1148/radiology.157.3.4059560
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发表时间：
1985
期刊：
影响因子：
19.7
通讯作者：
Deconinck,F
中科院分区：
文献类型：
--
作者：
Hale,JD;Valk,PE;Watts,JC;Kaufman,L;Crooks,LE;Higgins,CB;Deconinck,F
血管的多切面双回波磁共振（MR）经轴图像包含有关血流的解剖和定性信息。即便如此，图像是作为一系列二维断层扫描切片产生的，从这些切片中很难完全可视化连接的结构。开发了一种计算机算法，该算法基于像素强度和计算的T2自动检测流动血液，并在分析和显示流动特性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，对这些数据进行了重建，以获得更准确的通畅性评估。通过这种技术，经轴图像可用于分析血流模式，确定通畅区域，并在单个图像中可视化所有级别的血管。
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.