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Abstract #0408

Fast PNS characterization of MRI gradient coils using a Huygens’ PNS model: Application to multiple patient positions and orientations

Mathias Davids1,2,3, Bastien Guerin1,2, and Lawrence L Wald1,2,4
1Martinos Center for Biomedical Imaging, Boston, MA, United States, 2Harvard Medical School, Boston, MA, United States, 3Computer Assisted Clinical Medicine, Mannheim, Germany, 4Harvard-MIT, Division of Health Sciences and Technology, Cambridge, MA, United States

We apply a fast PNS model evaluated on a Huygens’ surface to characterize PNS performance as a function of patient position and pose in previously described PNS optimized gradients. The coils were initially PNS-optimized for a female body model in a standard brain imaging position. The Huygens’ approach allows us to assess other body positions and demonstrate the PNS benefits/penalties associated with other imaging applications and in both a female and male body model by dramatically speeding up the PNS characterization (to a couple of seconds per body position/orientation). The findings support a broad benefit from the PNS optimized windings.

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