PANDA-T-1 rho: Integrating Principal Component Analysis and Dictionary Learning for Fast T-1 rho Mapping
文献类型：期刊论文
| 作者 | Zhu Yanjie; Zhang Qinwei; Liu Qiegen; Wang YiXiang J.; Liu Xin; Zheng Hairong; Liang Dong; Yuan Jing |
| 刊名 | MAGNETIC RESONANCE IN MEDICINE
 |
| 出版日期 | 2015 |
| 英文摘要 | PurposeLong scanning time greatly hinders the widespread application of spin-lattice relaxation in rotating frame ( T1) in clinics. In this study, a novel method is proposed to reconstruct the T1-weighted images from undersampled k-space data and hence accelerate the acquisition of T1 imaging. MethodsThe proposed approach (PANDA- T1) combined the benefit of PCA and dictionary learning when reconstructing image from undersampled data. Specifically, the PCA transform was first used to sparsify the image series along the parameter direction and then the sparsified images were reconstructed by means of dictionary learning and finally solved the images. A variation of PANDA- T1 was also developed for the heavy noise case. Numerical simulation and in vivo experiments were carried out with the accelerating factor from 2 to 4 to verify the performance of PANDA- T1. ResultsThe reconstructed T1 maps using the PANDA- T1 method were found to be comparable to the reference at all verified acceleration factors. Moreover, the variation exhibited better performance than the original version when the k-space data were contaminated by heavy noise. ConclusionPANDA- T1 can significantly reduce the scanning time of T1 by integrating PCA and dictionary learning and provides better parameter estimation than the state-of-art methods for a fixed acceleration factor. Magn Reson Med 73:263-272, 2015. (c) 2014 Wiley Periodicals, Inc |
| 收录类别 | SCI |
| 原文出处 | http://www.ncbi.nlm.nih.gov/pubmed/24554439 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/7150]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | MAGNETIC RESONANCE IN MEDICINE |
| 推荐引用方式 GB/T 7714 | Zhu Yanjie,Zhang Qinwei,Liu Qiegen,et al. PANDA-T-1 rho: Integrating Principal Component Analysis and Dictionary Learning for Fast T-1 rho Mapping[J]. MAGNETIC RESONANCE IN MEDICINE,2015. |
| APA | Zhu Yanjie.,Zhang Qinwei.,Liu Qiegen.,Wang YiXiang J..,Liu Xin.,...&Yuan Jing.(2015).PANDA-T-1 rho: Integrating Principal Component Analysis and Dictionary Learning for Fast T-1 rho Mapping.MAGNETIC RESONANCE IN MEDICINE. |
| MLA | Zhu Yanjie,et al."PANDA-T-1 rho: Integrating Principal Component Analysis and Dictionary Learning for Fast T-1 rho Mapping".MAGNETIC RESONANCE IN MEDICINE (2015). |
入库方式： OAI收割
来源：深圳先进技术研究院
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