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A new simple iterative reconstruction algorithm for SPECT transmission measurement.

机译:一种用于SPECT传输测量的新的简单迭代重建算法。

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摘要

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.
机译:本文提出了一种用于传输层析成像的新的迭代重建算法,并将该算法与其他几种方法进行了比较。新算法很简单,并且在形式上类似于发射ML-EM算法。由于其简单性,它易于实现并且可以在每次迭代时快速计算出新的更新。该算法还始终保证非负解。使用模拟研究和真实的幻像数据进行评估。与其他算法(例如凸算法,梯度算法和logMLEM算法)的比较表明,该算法与其他算法一样好,并且在某些情况下性能更好。

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