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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