k-t ISD: Dynamic cardiac MR imaging using compressed sensing with iterative support detection
文献类型：期刊论文
| 作者 | Dong Liang; Edward V. R. DiBella; Rong-Rong Chen; Leslie Ying |
| 刊名 | MAGNETIC RESONANCE IN MEDICINE
 |
| 出版日期 | 2012 |
| 英文摘要 | Compressed sensing (CS) has been used in dynamic cardiac MRI to reduce the data acquisition time. The sparseness of the dynamic image series in the spatial- and temporal-frequency (x-f) domain has been exploited in existing works. In this article, we propose a new k-t iterative support detection (k-t ISD) method to improve the CS reconstruction for dynamic cardiac MRI by incorporating additional information on the support of the dynamic image in x-f space based on the theory of CS with partially known support. The proposed method uses an iterative procedure for alternating between image reconstruction and support detection in x-f space. At each iteration, a truncated ℓ1 minimization is applied to obtain the reconstructed image in x-f space using the support information from the previous iteration. Subsequently, by thresholding the reconstruction, we update the support information to be used in the next iteration. Experimental results demonstrate that the proposed k-t ISD method improves the reconstruction quality of dynamic cardiac MRI over the basic CS method in which support information is not exploited. |
| 收录类别 | SCI |
| 原文出处 | http://onlinelibrary.wiley.com/doi/10.1002/mrm.23197/full |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/3960]  |
| 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 | Dong Liang,Edward V. R. DiBella,Rong-Rong Chen,et al. k-t ISD: Dynamic cardiac MR imaging using compressed sensing with iterative support detection[J]. MAGNETIC RESONANCE IN MEDICINE,2012. |
| APA | Dong Liang,Edward V. R. DiBella,Rong-Rong Chen,&Leslie Ying.(2012).k-t ISD: Dynamic cardiac MR imaging using compressed sensing with iterative support detection.MAGNETIC RESONANCE IN MEDICINE. |
| MLA | Dong Liang,et al."k-t ISD: Dynamic cardiac MR imaging using compressed sensing with iterative support detection".MAGNETIC RESONANCE IN MEDICINE (2012). |
入库方式： OAI收割
来源：深圳先进技术研究院
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