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Abstract #5009

Multi-site reproducibility of quantitative susceptibility mapping at 1.5, 3 and 7T

Kofi M Deh1, Keigo Kawaji2, Deb Horng3, Marjolein Bulk4, Louise Van Der Weerd4, Pascal Spincemaille5, Thanh Nguyen6, and Yi Wang6

1Radiology, Weill Cornell Medicine, New York, NY, United States, 2University Of Chicago Medicine, Chicago, IL, United States, 3Department of Medical Physics, University of Wisconsin–Madison, Madison, WI, United States, 4Leiden University Medical Center, Leiden, Netherlands, 5Radioogy, Weill Cornell Medicine, New York, NY, United States, 6Weill Cornell Medicine, New York, NY, United States

Quantitative susceptibility mapping (QSM) is increasingly being applied to quantitative research on disease conditions including intracerebral hemorrhage, liver iron overload and bone mineral quantification. These applications require knowledge of the reproducibility of QSM of sources with high susceptibility, which has not been previously reported. Here, we investigate the agreement between QSM maps generated from gradient-echo scans acquired at multiple sites using multiple platforms.

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