Research Center of Digital Radiation Imaging and Biomedical Imaging, Beijing University of Aeronautics and Astronautics, Beiijng, People's Republic of China.
Phys Med Biol. 2011 Jul 21;56(14):4529-38. doi: 10.1088/0031-9155/56/14/019. Epub 2011 Jun 30.
We report a reconstruction method, called a back-projection filtered (BPF) algorithm, for fan beam differential phase contrast computed tomography (DPC-CT) with equidistant geometrical configuration. This work comprises a numerical study of the algorithm and its experimental verification with a three-grating interferometer and an x-ray tube source. The numerical simulation and experimental results demonstrate that the proposed method can deal with several classes of truncated datasets. It could be of interest in future medical phase contrast imaging applications.
我们报告了一种重建方法，称为反向投影滤波 (BPF) 算法，用于具有等距几何配置的扇形束差分相位对比计算机断层扫描 (DPC-CT)。这项工作包括对该算法的数值研究及其与三光栅干涉仪和 X 射线管源的实验验证。数值模拟和实验结果表明，所提出的方法可以处理几类截断数据集。它可能在未来的医学相位对比成像应用中引起关注。
