System and method for parallel magnetic resonance image reconstruction using digital beamforming
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United States of America Patent
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Jun 7, 2016
Grant Date -
Oct 24, 2013
app pub date -
Apr 19, 2013
filing date -
Apr 19, 2012
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Abstract
Systems and methods for beamforming algorithms for transmit-receive parallel magnetic resonance imaging (“pMRI”) applications are described. For any transmit configuration (e.g., using a single or multiple transmit elements) a weighted sum of the complex image data from each receiver is formed with a spatially-varying weighting. The weighting factor is obtained by solving an optimal refocusing problem at a set of points in the image space, which can include all the pixels in the image. The optimal refocusing of the transmit-receive configuration accounts for the spatially-varying SNR in deriving the coefficients of the weighted sum at every image pixel.
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