Accelerating SENSE using compressed sensing

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...

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Bibliographic Details
Published in:Magnetic resonance in medicine 2009-12, Vol.62 (6), p.1574-1584
Main Authors: Liang, Dong, Liu, Bo, Wang, JiunJie, Ying, Leslie
Format: Article
Language:English
Subjects:
Algorithms
Brain - anatomy & histology
compressed sensing
CS-SENSE
Humans
Image Enhancement - methods
Image Interpretation, Computer-Assisted - methods
Information Storage and Retrieval - methods
Magnetic Resonance Imaging - instrumentation
Magnetic Resonance Imaging - methods
Phantoms, Imaging
Reproducibility of Results
SENSE
Sensitivity and Specificity
Signal Processing, Computer-Assisted
SparseMRI
SparseSENSE
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Summary: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, 2009. © 2009 Wiley‐Liss, Inc.
ISSN:0740-3194
1522-2594
1522-2594
DOI:10.1002/mrm.22161