Undersampling trajectory design for compressed sensing based dynamic contrast-enhanced magnetic resonance imaging
文献类型：期刊论文
| 作者 | Liu DuanDuan; Liang Dong; Zhang Na; Liu Xin; Zhang YuanTing |
| 刊名 | JOURNAL OF ELECTRONIC IMAGING
 |
| 出版日期 | 2015 |
| 英文摘要 | Compressed sensing has the potential to address the challenge of simultaneously requiring high temporal and spatial resolution in dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), by randomly undersampling the k-space with a predesigned trajectory. However, the traditional variable density (VD) design scheme includes inherent randomness since many probability density functions (PDFs) correspond to a given acceleration factor and one fixed PDF can generate different trajectories. This randomness may translate to an uncertainty in kinetic parameter estimation. We first evaluate how the one-to-many mapping in trajectory design influences DCE parameter estimation when high reduction factors are used. Then we propose a robust design scheme by adaptively segmenting k-space into low-and high-frequency domains considering the specific characteristics for different subjects and only applying the VD scheme in the high-frequency domain. Simulation results demonstrate high accuracy and robustness compared to the VD design. (C) 2015 SPIE and IS&T |
| 收录类别 | SCI |
| 原文出处 | http://spie.org/Publications/Journal/10.1117/1.JEI.24.1.013017 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/7155]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | JOURNAL OF ELECTRONIC IMAGING |
| 推荐引用方式 GB/T 7714 | Liu DuanDuan,Liang Dong,Zhang Na,et al. Undersampling trajectory design for compressed sensing based dynamic contrast-enhanced magnetic resonance imaging[J]. JOURNAL OF ELECTRONIC IMAGING,2015. |
| APA | Liu DuanDuan,Liang Dong,Zhang Na,Liu Xin,&Zhang YuanTing.(2015).Undersampling trajectory design for compressed sensing based dynamic contrast-enhanced magnetic resonance imaging.JOURNAL OF ELECTRONIC IMAGING. |
| MLA | Liu DuanDuan,et al."Undersampling trajectory design for compressed sensing based dynamic contrast-enhanced magnetic resonance imaging".JOURNAL OF ELECTRONIC IMAGING (2015). |
入库方式： OAI收割
来源：深圳先进技术研究院
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