Abstract #1778

B0 and B1 Inhomogeneities in the Liver at 1.5T and 3.0T

Nathan Tibbitts Roberts^1,2, Diego Hernando^1,3, Timothy J Colgan¹, Louis A Hinshaw¹, Dylan M Kernan¹, and Scott B Reeder^1,3,4,5,6

¹Radiology, University of Wisconsin - Madison, Madison, WI, United States, ²Electrical and Computer Engineering, University of Wisconsin - Madison, Madison, WI, United States, ³Medical Physics, University of Wisconsin - Madison, Madison, WI, United States, ⁴Medicine, University of Wisconsin - Madison, Madison, WI, United States, ⁵Emergency Medicine, University of Wisconsin - Madison, Madison, WI, United States, ⁶Biomedical Engineering, University of Wisconsin - Madison, Madison, WI, United States

Inhomogeneities in the static (B0) and transmitted (B1) magnetic fields can lead to artifacts and image degradation for a large variety of imaging applications. Quantitative MRI applications that fail to account for B0 and B1 inhomogeneities may suffer from substantial errors. Understanding the range of expected B0 and B1 inhomogeneities experienced in vivo is essential to engineer solutions aimed at avoiding or correcting for these effects. In this work, we measure the B0 and B1 inhomogeneities in the liver of 60 and 312 patients, respectively, at both 1.5T and 3.0T.

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