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Abstract #0417

In vivo Quantitative Susceptibility Mapping (QSM) in cardiac MRI

Yan Wen1, Thanh D. Nguyen2, Zhe Liu1, Pascal Spincemaille2, Dong Zhou2, Alexey Dimov1, Youngwook Kee2, Jiwon Kim3, Jonathan W. Weinsaft3, and Yi Wang1,2

1Biomedical Engineering, Cornell University, New York, NY, United States, 2Physics in Radiology, Weill Cornell Medicine, New York, NY, United States, 3Medicine, Weill Cornell Medicine, New York, NY, United States

Quantitative Susceptibility Mapping (QSM) has yet to be applied on cardiac patients due to the challenges from motion artifacts and background fields. In this first attempt to apply QSM in cardiac MRI, we overcome these data acquisition and processing challenges by using robust graph cut phase analysis and a novel preconditioned inversion of total field. Our preliminary results demonstrate high quality susceptibility maps, and the measured heart chamber blood oxygenation level is consistent with reported values from literature.

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