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Abstract #4467

Low Rank SENSE: A Robust Reconstruction Method for ms-EPI based high spatial resolution DWI

Feng Huang 1 , Zhe Zhang 2 , Randy Duensing 1 , Bida Zhang 3 , and Hua Guo 2

1 Philips Healthcare, Gainesville, FL, United States, 2 Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China, 3 Philips Research China, Beijing, China

Multi-shot EPI has been proposed for high spatial resolution DWI. Due to inter-shot motion, there are phase inconsistency among shots. Unlike the existing reconstruction methods for ms-EPI, we treat this ms-EPI as accelerated dyanmic imaging. Instead of correcting the phase difference, we use the low-rank property of the data set and parallel imaging to reconstruct the images of each shot. Experiments demonstrate that the proposed method can robustly reconstruct high quality DWI with up to 8-shot data set acquired by an 8-channel head coil.

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