An Efficient Gridding Reconstruction Method for Multishot Non-Cartesian Imaging With Correction of Off-Resonance Artifacts
文献类型：期刊论文
| 作者 | Meng, Yuguang; Lei, Hao |
| 刊名 | MAGNETIC RESONANCE IN MEDICINE
 |
| 出版日期 | 2010-06-01 |
| 卷号 | 63期号:6页码:1691-1697 |
| 关键词 | non-Cartesian imaging spiral imaging gridding reconstruction off-resonance artifacts |
| 产权排序 | 第一 |
| 英文摘要 | An efficient iterative gridding reconstruction method with correction of off-resonance artifacts was developed, which is especially tailored for multiple-shot non-Cartesian imaging. The novelty of the method lies in that the transformation matrix for gridding (T) was constructed as the convolution of two sparse matrices, among which the former is determined by the sampling interval and the spatial distribution of the off-resonance frequencies and the latter by the sampling trajectory and the target grid in the Cartesian space. The resulting T matrix is also sparse and can be solved efficiently with the iterative conjugate gradient algorithm. It was shown that, with the proposed method, the reconstruction speed in multiple-shot non-Cartesian imaging can be improved significantly while retaining high reconstruction fidelity. More important, the method proposed allows tradeoff between the accuracy and the computation time of reconstruction, making customization of the use of such a method in different applications possible. The performance of the proposed method was demonstrated by numerical simulation and multiple-shot spiral imaging on rat brain at 4.7 T. Magn Reson Med 63:1691-1697, 2010. (C) 2010 Wiley-Liss, Inc. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | 分析化学 |
| 类目[WOS] | Radiology, Nuclear Medicine & Medical Imaging |
| 研究领域[WOS] | Radiology, Nuclear Medicine & Medical Imaging |
| 关键词[WOS] | ROSETTE TRAJECTORIES ; 3 TESLA ; MRI ; INHOMOGENEITIES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000278164400030 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/1944]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Yuguang,Lei, Hao. An Efficient Gridding Reconstruction Method for Multishot Non-Cartesian Imaging With Correction of Off-Resonance Artifacts[J]. MAGNETIC RESONANCE IN MEDICINE,2010,63(6):1691-1697. |
| APA | Meng, Yuguang,&Lei, Hao.(2010).An Efficient Gridding Reconstruction Method for Multishot Non-Cartesian Imaging With Correction of Off-Resonance Artifacts.MAGNETIC RESONANCE IN MEDICINE,63(6),1691-1697. |
| MLA | Meng, Yuguang,et al."An Efficient Gridding Reconstruction Method for Multishot Non-Cartesian Imaging With Correction of Off-Resonance Artifacts".MAGNETIC RESONANCE IN MEDICINE 63.6(2010):1691-1697. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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