Water-fat separation with parallel imaging based on BLADE
文献类型:期刊论文
作者 | Weng Dehe; Pan Yanli; Zhong Xiaodong; Zhuo Yan |
刊名 | MAGNETIC RESONANCE IMAGING
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出版日期 | 2013 |
英文摘要 | Uniform suppression of fat signal is desired in clinical applications. Based on phase differences introduced by different chemical shift frequencies, Dixon method and its variations are used as alternatives of fat saturation methods, which are sensitive to B0 inhomogeneities. Iterative Decomposition of water and fat with Echo Asymmetry and Least squares estimation (IDEAL) separates water and fat images with flexible echo shifting. Periodically Rotated Overlapping ParallEL Lines with Enhanced Reconstruction (PROPELLER, alternatively termed as BLADE), in conjunction with IDEAL, yields Turboprop IDEAL (TP-IDEAL) and allows for decomposition of water and fat signal with motion correction. However, the flexibility of its parameter setting is limited, and the related phase correction is complicated. To address these problems, a novel method, BLADE-Dixon, is proposed in this study. This method used the same polarity readout gradients (fly-back gradients) to acquire in-phase and opposed-phases images, which led to less complicated phase correction and more flexible parameter setting compared to TP-IDEAL. Parallel imaging and undersampling were integrated to reduce scan time. Phantom, orbit, neck and knee images were acquired with BLADE-Dixon. Water–fat separation results were compared to those measured with conventional turbo spin echo (TSE) Dixon and TSE with fat saturation, respectively, to demonstrate the performance of BLADE-Dixon. |
收录类别 | SCI |
原文出处 | http://www.sciencedirect.com/science/article/pii/S0730725X12004171 |
语种 | 英语 |
源URL | [http://ir.siat.ac.cn:8080/handle/172644/4787] ![]() |
专题 | 深圳先进技术研究院_医工所 |
作者单位 | MAGNETIC RESONANCE IMAGING |
推荐引用方式 GB/T 7714 | Weng Dehe,Pan Yanli,Zhong Xiaodong,et al. Water-fat separation with parallel imaging based on BLADE[J]. MAGNETIC RESONANCE IMAGING,2013. |
APA | Weng Dehe,Pan Yanli,Zhong Xiaodong,&Zhuo Yan.(2013).Water-fat separation with parallel imaging based on BLADE.MAGNETIC RESONANCE IMAGING. |
MLA | Weng Dehe,et al."Water-fat separation with parallel imaging based on BLADE".MAGNETIC RESONANCE IMAGING (2013). |
入库方式: OAI收割
来源:深圳先进技术研究院
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