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Signal and image processing strategies for reconstructing 3-D color flow maps from ultrasonic data

机译:从超声数据重建3-D彩色流图的信号和图像处理策略

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In this paper we present techniques for the 3-D reconstruction of ultrasonic images. In previous work, we presented methods for accurately determining the velocity profile within blood vessels along single lines of sight. Measurements of two dimensional velocity profiles in parallel planes can be achieved by simply translating the transducer over a rectangular grid. Doing so we obtain a well conditioned three-dimensional data set that can be used for a 3-D color flow mapping. In this paper we consider the problems of constructing a 3-D vessel structure and velocity vector field from image slices with good geometric quality. Examples of vessel structures and blood flow field rendering for both 7.5 MHz as well as 50 MHz transducer center frequencies are presented.
机译:在本文中,我们介绍了超声图像的3D重建技术。在以前的工作中,我们提出了沿单条视线准确确定血管内速度分布的方法。只需在矩形网格上平移换能器即可实现在平行平面中二维速度分布图的测量。这样做,我们获得了条件良好的三维数据集,该数据集可用于3-D颜色流映射。在本文中,我们考虑了从具有良好几何质量的图像切片构造3-D血管结构和速度矢量场的问题。给出了7.5 MHz以及50 MHz换能器中心频率的血管结构和血流场渲染示例。

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