Iterative region of interest reconstruction in emission tomography
Iterative region of interest reconstruction in emission tomography
复制标题
发射断层扫描中的迭代感兴趣区域重建
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
Jun Ma
中科院分区：
文献类型：
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作者：
Jun Ma
本文提出了一种在发射断层扫描中重建感兴趣区域的新方法，假设整个视场 (FOV) 的投影可用。与其他一些感兴趣区域评估方法不同，系统矩阵只是通过对感兴趣区域之外的像素对应的列进行求和来重新表述，我们的方法使用贝叶斯概率公式重新表述系统矩阵。模拟研究表明，从重建质量来判断，我们的方法优于传统方法。
This paper proposes a new method for region of interest reconstruction in emission tomography assuming projections from the entire field of view (FOV) are available. Unlike some other region of interest evaluation approaches where the system matrix is reformulated simply by summations over columns corresponding to pixels outside the region of interest, our approach reformulates the system matrix using the Bayes probability formula. The simulation study reveals that our method outperforms the traditional approaches judged by reconstruction quality.