Abstract #4444
POCS-ICE: POCS based Inherent Correction of phase Errors for multi-shot spiral DWI
Xiaodong Ma 1 , Feng Huang 2 , Zhe Zhang 1 , Bida Zhang 2 , Sheng Fang 3 , and Hua Guo 1
1
Center for Biomedical Imaging Research,
Department of Biomedical Engineering, School of
Medicine, Tsinghua University, Beijing, Beijing, China,
2
Philips
Research China, Beijing, China,
3
Institute
of nuclear and new energy technology, Tsinghua
University, Beijing, China
POCS based Inherent Correction of motion-induced phase
Errors (POCS-ICE) is proposed for the reconstruction in
multi-shot spiral DWI, which can automatically correct
the phase variation among different excitations without
calculating them directly. Invivo experiments show that
DW images from POCS-ICE present higher SNR and less
aliasing artifacts than SENSE+CG when a large shot
number is used. Therefore, it can contribute to
shortening the spiral readout duration such that high
resolution diffusion weighted images can be achieved.
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