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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