An Extended Algebraic Reconstruction Technique (E-ART) for Dual Spectral CT
文献类型：期刊论文
| 作者 | Zhao Yunsong; Zhao Xing; Zhang Peng |
| 刊名 | IEEE TRANSACTIONS ON MEDICAL IMAGING
 |
| 出版日期 | 2015 |
| 英文摘要 | Compared with standard computed tomography (CT), dual spectral CT (DSCT) has many advantages for object separation, contrast enhancement, artifact reduction, and material composition assessment. But it is generally difficult to reconstruct images from polychromatic projections acquired by DSCT, because of the nonlinear relation between the polychromatic projections and the images to be reconstructed. This paper first models the DSCT reconstruction problem as a nonlinear system problem; and then extend the classic ART method to solve the nonlinear system. One feature of the proposed method is its flexibility. It fits for any scanning configurations commonly used and does not require consistent rays for different X-ray spectra. Another feature of the proposed method is its high degree of parallelism, which means that the method is suitable for acceleration on GPUs (graphic processing units) or other parallel systems. The method is validated with numerical experiments from simulated noise free and noisy data. High quality images are reconstructed with the proposed method from the polychromatic projections of DSCT. The reconstructed images are still satisfactory even if there are certain errors in the estimated X-ray spectra. |
| 收录类别 | SCI |
| 原文出处 | http://ieeexplore.ieee.org/iel7/42/4359023/06965595.pdf?arnumber=6965595 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/7187]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | IEEE TRANSACTIONS ON MEDICAL IMAGING |
| 推荐引用方式 GB/T 7714 | Zhao Yunsong,Zhao Xing,Zhang Peng. An Extended Algebraic Reconstruction Technique (E-ART) for Dual Spectral CT[J]. IEEE TRANSACTIONS ON MEDICAL IMAGING,2015. |
| APA | Zhao Yunsong,Zhao Xing,&Zhang Peng.(2015).An Extended Algebraic Reconstruction Technique (E-ART) for Dual Spectral CT.IEEE TRANSACTIONS ON MEDICAL IMAGING. |
| MLA | Zhao Yunsong,et al."An Extended Algebraic Reconstruction Technique (E-ART) for Dual Spectral CT".IEEE TRANSACTIONS ON MEDICAL IMAGING (2015). |
入库方式： OAI收割
来源：深圳先进技术研究院
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