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Abstract #2443

A localized reconstruction method for parallel imaging in MRI

Seohee So1, Hyunseok Seo2, and HyunWook Park1

1School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea, Republic of, 2School of Medicine Stanford University, Palo Alto, CA, United States

Conventional parallel imaging methods reconstruct MR images from subsampled data, which utilizes spatial sensitivity information of multi-channel RF coil. In this study, localization of receiving coil sensitivity along readout direction (x) is introduced to efficiently utilize the coil sensitivity for parallel imaging. In the x-ky space, localization window is applied for estimation of missing data. Sensitivity localization in the readout direction makes near channels more weighted than distant channels for calculating estimation kernel. The proposed reconstruction method for parallel imaging considers the correlation between spatial sensitivities along the readout direction of receiving channels and region to be reconstructed.

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