Measuring and Characterizing Short-Term High Order Eddy Currents with a Phantom

Dan Xu¹, Joseph K. Maier¹, Kevin F. King¹, R. Scott Hinks¹

Uncompensated high order eddy currents (HOEC) can cause various image artifacts, including image distortion in echo planar imaging (EPI) and phase errors in phase contrast imaging. While a recently proposed method is capable of measuring and correcting long term HOEC to minimize distortion in EPI, it cannot provide accurate characterization of short term HOEC, which is believed to be one of the main sources of phase errors in phase contrast imaging. In this paper, we propose to extend the Duyns method to 3D to measure and characterize short term HOEC with a phantom.