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Abstract #2672

A Solution to the Phase Problem in Adaptive Coil Combination

Souheil J. Inati1, Michael Schacht Hansen2, Peter Kellman2

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

We present an algorithm for adaptive combination of images from an array of MR coils that is suitable for applications in which complex valued images are required. This algorithm enforces smoothness in both the magnitude and phase of the estimated coil sensitivities and overcomes limitations inherent in previous methods.

Keywords

adaptive adaptively application applications arbitrarily around array arrays arrive assuming audience become blood choose chosen clinicians coil coils combination combined complex computed computing consisting correction covariances derive description directly easily enforces ensuring errors estimating estimation expected fast filtered forming fundamental head health heart implementation incorporated individual institute institutes interpolation leading least like longer lung many mental mitigate mitigates motion national necessary noise noisy normalized note optimal original parallel part perspective peter phantom pipeline pixel practical practice preprocessing problem problems procedure profiles proposed putting reconstructed reconstruction requires requiring researchers scanner sensitive sensitivities sensitivity short simple singular singularities slightly smooth smoothness solution solves solving squares statistical step surface susceptibility take target thermometry transferred typically unknown vector vendor version water wherever