NDLI: Practical parallel imaging compressed sensing MRI: Summary of two years of experience in accelerating body MRI of pediatric patients

Content Provider	IEEE Xplore Digital Library
Author	Vasanawala, S.S. Murphy, M.J. Alley, M.T. Lai, P. Keutzer, K. Pauly, J.M. Lustig, M.
Copyright Year	2011
Description	Author affiliation: Electrical Engineering, Stanford University, USA (Pauly, J.M.) \|\| GE Healthcare, USA (Lai, P.) \|\| Radiology, Stanford University, USA (Vasanawala, S.S.; Alley, M.T.) \|\| Electrical Engineering and Computer Science, University of California, Berkeley, USA (Murphy, M.J.; Keutzer, K.; Lustig, M.)
Abstract	For the last two $years^{1},$ we have been experimenting with applying compressed sensing parallel imaging for body imaging of pediatric patients. It is a joint-effort by teams from UC Berkeley, Stanford University and GE Healthcare. This paper aims to summarize our experience so far. We describe our acquisition approach: 3D spoiled-gradient-echo with poisson-disc random undersampling of the phase encodes. Our reconstruction approach: ℓ1-SPIRiT, an iterative autocalibrating parallel imaging reconstruction that enforces both data consistency and joint-sparsity in the wavelet domain. Our implementation: an on-line parallelized implementation of ℓ1-SPIRiT on multi-core CPU and General Purpose Graphics Processors (GPGPU) that achieves sub-minute 3D reconstructions with 8-channels. Clinical results showing higher quality reconstruction and better diagnostic confidence than parallel imaging alone at accelerations on the order of number of coils.
Starting Page	1039
Ending Page	1043
File Size	1016985
Page Count	5
File Format	PDF
ISBN	9781424441273
ISSN	19457928
DOI	10.1109/ISBI.2011.5872579
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-03-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image reconstruction Coils Compressed sensing Magnetic resonance imaging Acceleration Three dimensional displays Pediatric MRI Compressed Sensing Parallel Imaging SPIRiT
Content Type	Text
Resource Type	Article

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