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Abstract #4407

A Fast Optimal Method for Coil Sensitivity Estimation and Adaptive Coil Combination for Complex Images

Souheil J Inati 1 , Michael S Hansen 2 , and Peter Kellman 2

1 National Institute of Mental Health, National Institutes of Health, Bethesda, MD, United States, 2 National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD, United States

We propose a simple, SNR optimal method for coil sensitivity estimation and adaptive combination suitable for applications in which complex valued images are required. The proposed method enforces smoothness in both the magnitude and phase of the estimated coil sensitivities and overcomes the limitations inherent in previous methods. It has a very fast implementation and can be easily incorporated into a reconstruction pipeline. We demonstrate how this approach can mitigate the problems with phase. It is likely to be useful in applications such as susceptibility weighted imaging, complex interpolation, complex motion correction, and referenceless thermometry.

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