A new simple iterative reconstruction algorithm for SPECT transmission measurement.
A new simple iterative reconstruction algorithm for SPECT transmission measurement.
复制标题
DOI：
10.1118/1.1944288
复制
发表时间：
2005-07
期刊：
影响因子：
3.8
通讯作者：
D. Hwang;G. Zeng
中科院分区：
文献类型：
--
作者：
D. Hwang;G. Zeng
本文提出了一种新的透射断层扫描迭代重建算法，并将该算法与其他几种方法进行了比较。新算法简单，形式上类似于发射ML-EM算法。由于其简单性，它很容易实现，并且可以在每次迭代时快速计算新的更新。该算法还始终保证非负解。使用模拟研究和真实模型数据进行评估。与凸、梯度、logMLEM等其他算法的比较表明，所提出的算法与其他算法一样好，并且在某些情况下表现更好。
This paper proposes a new iterative reconstruction algorithm for transmission tomography and compares this algorithm with several other methods. The new algorithm is simple and resembles the emission ML-EM algorithm in form. Due to its simplicity, it is easy to implement and fast to compute a new update at each iteration. The algorithm also always guarantees non-negative solutions. Evaluations are performed using simulation studies and real phantom data. Comparisons with other algorithms such as convex, gradient, and logMLEM show that the proposed algorithm is as good as others and performs better in some cases.