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 Wang^1,2

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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