Performance Analysis of 2-D GRAPPA and Partial Fourier GRAPPA for 3-D MRI

	Performance Analysis of 2-D GRAPPA and Partial Fourier GRAPPA for 3-D MRI
	Shan He; Guoxi Xie; Yiu-Cho Chung; Yu Ding; Xin Liu; Bensheng Qiu
刊名	APPLIED MAGNETIC RESONANCE
	2013
英文摘要	The acquisition time of three-dimensional magnetic resonance imaging (3-D MRI) is too long to tolerate in many clinical applications. At present, parallel MRI (pMRI) and partial Fourier (PF) with homodyne detection, including 2-D pMRI (two-dimensional pMRI) and PF_pMRI (the combination of PF and pMRI), are often used to accelerate data sampling in 3-D MRI. However, the performances of 2-D pMRI and PF_pMRI have been seldom discussed. In this paper, we choose GRAPPA (generalized auto-calibrating partially parallel acquisition) as a representative pMRI to analyze and compare the performances of 2-D GRAPPA and PF_GRAPPA, including the noise standard deviation (SD), root mean-square error (RMSE) and g factor, through a series of in vitro experiments. A series of phantom experiments show that the SD, RMSE and g-factor values of PF_GRAPPA are lower than those of 2-D GRAPPA under the same acceleration factor. It demonstrates that the performance of PF_GRAPPA is better than that of 2-D GRAPPA. PF_GRAPPA can be used in any thickness of imaging slab, while 2-D GRAPPA can only be used in thick slab due to the difficulties in determination of the fitting coefficients which result from imperfect RF pulse. In vivo brain experiment results also show that the performance of PF_GRAPPA is better than that of 2-D GRAPPA.
收录类别	SCI
原文出处	http://link.springer.com/article/10.1007/s00723-013-0472-8
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/4773]
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	Shan He,Guoxi Xie,Yiu-Cho Chung,et al. Performance Analysis of 2-D GRAPPA and Partial Fourier GRAPPA for 3-D MRI[J]. APPLIED MAGNETIC RESONANCE,2013.
APA	Shan He,Guoxi Xie,Yiu-Cho Chung,Yu Ding,Xin Liu,&Bensheng Qiu.(2013).Performance Analysis of 2-D GRAPPA and Partial Fourier GRAPPA for 3-D MRI.APPLIED MAGNETIC RESONANCE.
MLA	Shan He,et al."Performance Analysis of 2-D GRAPPA and Partial Fourier GRAPPA for 3-D MRI".APPLIED MAGNETIC RESONANCE (2013).