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Abstract #3232

Calibration-free Parallel Imaging Using Randomly Undersampled Multichannel Blind Deconvolution (MALBEC)

Jingyuan Lyu1, Ukash Nakarmi1, Yihang Zhou1, Chaoyi Zhang1, and Leslie Ying1,2

1Electrical Engineering, The State University of New York at Buffalo, Buffalo, NY, United States, 2Biomedical Engineering, The State University of New York at Buffalo, Buffalo, NY, United States

This abstract presents a novel reconstruction method for parallel imaging that does not require auto-calibration data. The method formulates the image reconstruction problem as a multichannel blind deconvolution problem in k-space where the data are randomly undersampled in all channels. Under this formulation, the k-spaces of the desired image and coil sensitivities are jointly recovered by finding a rank-1 matrix subject to the data consistent constraint. Experimental results demonstrate that the proposed method is able to achieve better reconstruction results than the state-of-the-art calibration-less parallel imaging methods.

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