Method and apparatus for automated regularization tuning in magnetic resonance imaging (MRI) using compressed sensing (CS)

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United States of America Patent

PATENT NO 11389077
APP PUB NO 20210315475A1
SERIAL NO

17313055

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An apparatus and method are provided to simultaneously provide good image quality and fast image reconstruction from magnetic resonance imaging (MRI) data by selecting an appropriate value for the regularization parameter used in compressed sensing (CS) image reconstruction. In CS reconstruction a high-resolution image can be reconstructed from randomized undersampled data by imposing sparsity in multi-scale transformation (e.g., wavelet) domain. Further, in the transformation domain, a threshold can be determined between signal and noise levels of the transform coefficients. A regularization parameter based on this threshold scales the regularization term, which imposes sparsity, relative to the data fidelity term in an objective function, thereby balancing the tradeoff between noise and smoothing.

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Patent Owner(s)

  • CANON MEDICAL SYSTEMS CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matakos, Antonios Vernon Hills, US 6 14
Sharma, Samir Dev Vernon Hills, US 8 15
Wheaton, Andrew James Vernon Hills, US 7 4

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