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Abstract #2436

Multi-Spectral Imaging Near Metal: Understanding Performance Differences Between 1.5T and 3.0T

Kevin M. Koch1, Matthew F. Koff2, Hollis G. Potter2

1Applied Science Laboratory, GE Healthcare, Milwaukee, WI, United States; 2Department of Radiology and Imaging, Hospital for Special Surgery, New York, NY, United States

Initial clinical investigations have focused on applying Multi-Spectral Imaging (MSI) techniques near metal at 1.5T. Recent clinical probes applying MAVRIC-SL MSI technique at 3.0T have also shown encouraging results. Here, we demonstrate the performance impact of MAVRIC SL at 1.5T vs 3.0T. The observed performance difference between the two field strengths is explained, and a modification to MAVRIC-SL is proposed to improve performance at 3T. The results indicate that MAVRIC-SL substantially reduces susceptibility artifacts and can be applied effectively at both field strengths. However, the image quality of MAVRIC-SL, or any MSI technique, will consistently be better at 1.5T compared to 3T