Towards monitored tomographic reconstruction: algorithm-dependence and convergence

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-08-01 DOI:10.18287/2412-6179-co-1238

K.B. Bulatov, A.S. Ingacheva, M.I. Gilmanov, K. Kutukova, Z.V. Soldatova, A.V. Buzmakov, M.V. Chukalina, E. Zschech, V.V. Arlazarov

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引用次数: 0

Abstract

The monitored tomographic reconstruction (MTR) with optimized photon flux technique is a pioneering method for X-ray computed tomography (XCT) that reduces the time for data acquisition and the radiation dose. The capturing of the projections in the MTR technique is guided by a scanning protocol built on similar experiments to reach the predetermined quality of the reconstruction. This method allows achieving a similar average reconstruction quality as in ordinary tomography while using lower mean numbers of projections. In this paper, we, for the first time, systematically study the MTR technique under several conditions: reconstruction algorithm (FBP, SIRT, SIRT-TV, and others), type of tomography setup (micro-XCT and nano-XCT), and objects with different morphology. It was shown that a mean dose reduction for reconstruction with a given quality only slightlyvaries with choice of reconstruction algorithm, and reach up to 12.5 % in case of micro-XCT and 8.5 % for nano-XCT. The obtained results allow to conclude that the monitored tomographic reconstruction approach can be universally combined with an algorithm of choice to perform a controlled trade-off between radiation dose and image quality. Validation of the protocol on independent common ground truth demonstrated a good convergence of all reconstruction algorithms within the MTR protocol.

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面向监测层析重建:算法依赖与收敛

基于优化光子通量技术的监测层析重建(MTR)是x射线计算机断层扫描(XCT)的一种开创性方法，它减少了数据采集时间和辐射剂量。在MTR技术中，投影的捕获由建立在类似实验基础上的扫描协议指导，以达到预定的重建质量。该方法可以实现与普通断层扫描相似的平均重建质量，同时使用较低的平均投影数。本文首次系统地研究了重建算法(FBP、SIRT、SIRT- tv等)、层析成像设置类型(micro-XCT和nano-XCT)以及不同形态目标下的MTR技术。结果表明，对于给定质量的重建，不同重建算法的平均剂量减少量变化不大，micro-XCT可达12.5%，nano-XCT可达8.5%。所获得的结果允许得出结论，监测层析重建方法可以普遍与选择的算法相结合，以在辐射剂量和图像质量之间进行可控的权衡。该协议在独立共同点真值上的验证证明了MTR协议中所有重建算法的良好收敛性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.