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Abstract #2346

Model-based Image Reconstruction in Looping-star MRI

Haowei Xiang1, Jeffrey A Fessler1, and Douglas C Noll2
1Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Ann Arbor, MI, United States, 2Biomedical Engineering, University of Michigan, Ann Arbor, Ann Arbor, MI, United States

Synopsis

Looping star is a silent MRI pulse sequence that can be used for quantitative susceptibility mapping (QSM), T2*-weighted imaging and fMRI. The conventional reconstruction approach for looping star MRI that filters out some the k-space data does not fully model the overlapping echoes, and remove potentially useful signals. This work proposes a model-based reconstruction method that can theoretically resolve the overlapping echos and improve the SNR without increasing the scan time.

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