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Abstract #1369

Design Analysis and Prototype Construction of PNS Optimized MRI Gradient Coils

Mathias Davids1,2,3, Livia Vendramini1, Natalie Ferris4,5, Valerie Klein1,3, Bastien Guerin1,2, and Lawrence L. Wald1,2,5
1Martinos Center for Biomedical Imaging, Charlestown, MA, United States, 2Harvard Medical School, Boston, MA, United States, 3Computer Assisted Clinical Medicine, Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany, 4Harvard Graduate Program in Biophysics, Harvard University, Cambridge, MA, United States, 5Harvard-MIT Division of Health Sciences and Technology, Boston, MA, United States


We describe the process of designing and analyzing two body gradient coils with and without PNS optimization suitable for prototype construction and experimental validation. The optimized coil achieves a 51% increase in PNS thresholds at a 15% inductance penalty. Both coils are construction-ready (single continuous wire path) and have realistic and matched design characteristics (actively shielded, torque/force balanced, high field linearity in 40 cm ROL). We are in the process of constructing coil prototypes, with the ultimate goal of experimentally validating their PNS differences.

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