期刊
MAGNETIC RESONANCE IN MEDICINE
卷 62, 期 6, 页码 1574-1584出版社
WILEY
DOI: 10.1002/mrm.22161
关键词
SENSE; compressed sensing; SparseMRI; Sparse-SENSE; CS-SENSE
资金
- National Science Foundation [CBET-0731226]
Both parallel MRI and compressed sensing (CS) are emerging techniques to accelerate conventional MRI by reducing the number of acquired data. The combination of parallel MRI and CS for further acceleration is of great interest. In this paper, we propose a novel method to combine sensitivity encoding (SENSE), one of the standard methods for parallel MRI, and compressed sensing for rapid MR imaging (SparseMRI), a recently proposed method for applying CS in MR imaging with Cartesian trajectories. The proposed method, named CS-SENSE, sequentially reconstructs a set of aliased reduced-field-of-view images in each channel using SparseMRI and then reconstructs the final image from the aliased images using Cartesian SENSE. The results from simulations and phantom and in vivo experiments demonstrate that CS-SENSE can achieve a reduction factor higher than those achieved by SparseMRI and SENSE individually and outperform the existing method that combines parallel MRI and CS. Magn Reson Med 62:1574-1584, 2009. (C) 2009 Wiley-Liss, Inc.
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