Practical parallel imaging compressed sensing MRI: Summary of two years of experience in accelerating body MRI of pediatric patients
For the last two years, 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 acqu...
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| Veröffentlicht in: | 2011 IEEE International Symposium on Biomedical Imaging: From Nano to Macro 2011-12, Vol.2011, p.1039-1043 |
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| container_title | 2011 IEEE International Symposium on Biomedical Imaging: From Nano to Macro |
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| creator | Vasanawala, S S Murphy, M J Alley, M T Lai, P Keutzer, K Pauly, J M Lustig, M |
| description | For the last two years, 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: ℓ 1 -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 ℓ 1 -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. |
| doi_str_mv | 10.1109/ISBI.2011.5872579 |
| format | Article |
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| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Acceleration Coils Compressed sensing Image reconstruction Magnetic resonance imaging Parallel Imaging Pediatric MRI SPIRiT Three dimensional displays |
| title | Practical parallel imaging compressed sensing MRI: Summary of two years of experience in accelerating body MRI of pediatric patients |
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