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Array compression for MRI with large coil arrays
Open accessAbstract
Arrays with large numbers of independent coil elements are becoming increasingly available as they provide increased signal‐to‐noise ratios (SNRs) and improved parallel imaging performance. Processing of data from a large set of independent receive channels is, however, associated with an increased memory and computational load in reconstruction. This work addresses this problem by introducing coil array compression. The method allows one to reduce the number of datasets from independent channels by combining all or partial sets in the time domain prior to image reconstruction. It is demonstrated that array compression can be very effective depending on the size of the region of interest (ROI). Based on 2D in vivo data obtained with a 32‐element phased‐array coil in the heart, it is shown that the number of channels can be compressed to as few as four with only 0.3% SNR loss in an ROI encompassing the heart. With twofold parallel imaging, only a 2% loss in SNR occurred using the same compression factor. Magn Reson Med 57:1131–1139, 2007. © 2007 Wiley‐Liss, Inc.
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Cited by
Feng, L., Grimm, R., Block, K. T., Chandarana, H., Kim, S., Xu, J., Axel, L., Sodickson, D. K., & Otazo, R. (2014) · Magnetic Resonance in Medicine · doi:10.1002/mrm.24980 · Cited by 718
Pushing the limits of in vivo diffusion MRI for the Human Connectome Project
Setsompop, K., Kimmlingen, R., Eberlein, E., Witzel, T., Cohen-Adad, J., McNab, J. A., Keil, B., Tisdall, M. D., Hoecht, P., Dietz, P., et al. (2013) · NeuroImage · doi:10.1016/j.neuroimage.2013.05.078 · Cited by 545
Real‐time MRI at a resolution of 20 ms
Uecker, M., Zhang, S., Voit, D., Karaus, A., Merboldt, K., & Frahm, J. (2010) · NMR in Biomedicine · doi:10.1002/nbm.1585 · Cited by 434
Murphy, M., Alley, M., Demmel, J., Keutzer, K., Vasanawala, S., & Lustig, M. (2012) · IEEE Transactions on Medical Imaging · doi:10.1109/tmi.2012.2188039 · Cited by 313
Coil compression for accelerated imaging with Cartesian sampling
Zhang, T., Pauly, J. M., Vasanawala, S. S., & Lustig, M. (2013) · Magnetic Resonance in Medicine · doi:10.1002/mrm.24267 · Cited by 273
Metadata
- Authors
- Buehrer, M., Pruessmann, K. P., Boesiger, P., & Kozerke, S.
- Venue
- Magnetic Resonance in Medicine
- Publisher
- Wiley
- Published
- 2007-05-29
- Volume
- 57
- Issue
- 6
- Pages
- 1131-1139
- ISSN
- 0740-3194 (ISSN-L)
- 1522-2594
- OpenAlex
- W2009238259
- Cited by
- 257
- References
- 0
- FWCI
- 3.88
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Buehrer, M., Pruessmann, K. P., Boesiger, P., & Kozerke, S. (2007). Array compression for MRI with large coil arrays. Magnetic Resonance in Medicine. https://doi.org/10.1002/mrm.21237
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