Accelerated 3D Coronary Vessel Wall MR Imaging Based on Compressed Sensing with a Block-Weighted Total Variation Regularization.
文献类型：期刊论文
| 作者 | Fan, Zhaoyang; Ji, Jim X; Liu, Xin; Xie, Guoxi; Chen, Zhongzhou; Zhang, Xiaoyong; Shi, Caiyun; Su, Shi |
| 刊名 | APPLIED MAGNETIC RESONANCE
 |
| 出版日期 | 2017 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Coronary vessel wall magnetic resonance (MR) imaging is important for heart disease diagnosis but often suffers long scan time. Compressed sensing (CS) has been previously used to accelerate MR imaging by reconstructing an MR image from undersampled k-space data using a regularization framework. However, the widely used regularizations in the current CS methods often lead to smoothing effects and thus are unable to reconstruct the coronary vessel walls with sufficient resolution. To address this issue, a novel block-weighted total variation regularization is presented to accelerate the coronary vessel wall MR imaging. The proposed regularization divides the image into two parts: a region-of-interest (ROI) which contains the coronary vessel wall, and the other region with less concerned features. Different penalty weights are given to the two regions. As a result, the small details within ROI do not suffer from over-smoothing while the noise outside the ROI can be significantly suppressed. Results with both numerical simulations and in vivo experiments demonstrated that the proposed method can reconstruct the coronary vessel wall from undersampled k-space data with higher qualities than the conventional CS with the total variation or the edge-preserved total variation. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/12051]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | APPLIED MAGNETIC RESONANCE |
| 推荐引用方式 GB/T 7714 | Fan, Zhaoyang,Ji, Jim X,Liu, Xin,et al. Accelerated 3D Coronary Vessel Wall MR Imaging Based on Compressed Sensing with a Block-Weighted Total Variation Regularization.[J]. APPLIED MAGNETIC RESONANCE,2017. |
| APA | Fan, Zhaoyang.,Ji, Jim X.,Liu, Xin.,Xie, Guoxi.,Chen, Zhongzhou.,...&Su, Shi.(2017).Accelerated 3D Coronary Vessel Wall MR Imaging Based on Compressed Sensing with a Block-Weighted Total Variation Regularization..APPLIED MAGNETIC RESONANCE. |
| MLA | Fan, Zhaoyang,et al."Accelerated 3D Coronary Vessel Wall MR Imaging Based on Compressed Sensing with a Block-Weighted Total Variation Regularization.".APPLIED MAGNETIC RESONANCE (2017). |
入库方式： OAI收割
来源：深圳先进技术研究院
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