Iterative reconstruction algorithm for analyzer-based phase-contrast computed tomography of hard and soft tissue
Iterative reconstruction algorithm for analyzer-based phase-contrast computed tomography of hard and soft tissue
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DOI：
10.1063/1.4824075
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发表时间：
2013-09-30
影响因子：
4
通讯作者：
Ando, Masami
中科院分区：
文献类型：
--
作者：
Sunaguchi, Naoki;Yuasa, Tetsuya;Ando, Masami
我们提出了一种基于分析仪的相衬计算机断层扫描（CT）的重建算法，适用于生物样本，包括硬组织，可能会产生明显的文物与传统的重建方法。该算法是一个迭代过程，通过Radon变换和CT重建在断层图像和其正弦图之间来回，同时在各个区域中施加先验信息。我们证明了该算法的有效性，使用计算机模拟产生的合成数据，反映实际的实验条件和实际数据从大鼠脚暗场成像系统。(C)2013 AIP Publishing LLC.
We propose a reconstruction algorithm for analyzer-based phase-contrast computed tomography (CT) applicable to biological samples including hard tissue that may generate conspicuous artifacts with the conventional reconstruction method. The algorithm is an iterative procedure that goes back and forth between a tomogram and its sinogram through the Radon transform and CT reconstruction, while imposing a priori information in individual regions. We demonstrate the efficacy of the algorithm using synthetic data generated by computer simulation reflecting actual experimental conditions and actual data acquired from a rat foot by a dark field imaging system. (C) 2013 AIP Publishing LLC.