Region of Interest Reconstruction from Dose-Minimized Super Short Scan Data

Region of Interest Reconstruction from Dose-Minimized Super Short Scan Data
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从剂量最小化超短扫描数据重建感兴趣区域

DOI:
10.1007/978-3-642-54111-7_14
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
J. Hornegger
J. Hornegger
中科院分区:
--
文献类型:
--
作者:
Y. Xia;A. Maier;M. Berger;J. Hornegger

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本文研究了一种基于超短扫描的ROI图像重建方法。这种扫描中的冗余射线通过使用动态准直进一步被屏蔽。以极小的辐射剂量获得的数据足以用于图像重建。为了补偿由此产生的截断,我们应用了最近提出的一种算法--近似截断稳健算法(ATRACT)。对两个临床数据集的评估表明,使用这种超短扫描可以获得高质量的图像,与标准短扫描相比,剂量减少更多。
In this paper, we investigate an ROI image reconstruction in super short scan. The redundant rays in such scan are further shielded by using dynamic collimation. The acquired data coming with an extremely minimized radiation dose are sufficient for image reconstruction. For compensating resulting truncation, we apply a recently proposed algorithm – Approximated Truncation Robust Algorithm for Computed Tomography (ATRACT). The evaluation with two clinical datasets demonstrates that high image quality is achieved using this super short scan, with more dose reduction compared to a standard short scan.
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DOI: 10.1109/nssmic.2012.6551549
发表时间: 2012
期刊: 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC)
影响因子: --
作者:
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发表时间: 2013
期刊: 2013 IEEE Nuclear Science Symposium and Medical Imaging Conference (2013 NSS/MIC)
影响因子: --
作者:
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