Abstract #1369

Design Analysis and Prototype Construction of PNS Optimized MRI Gradient Coils

Mathias Davids^1,2,3, Livia Vendramini¹, Natalie Ferris^4,5, Valerie Klein^1,3, Bastien Guerin^1,2, and Lawrence L. Wald^1,2,5

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

Synopsis

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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