Abstract #2872

Consideration of peripheral nerve stimulation in the optimization of spiral k-space trajectories

Oliver Schad^1,2, Tobias Wech¹, and Herbert Köstler¹

¹Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, Würzburg, Germany, ²University of Würzburg, Experimental Physics 5, Würzburg, Germany

Synopsis

Keywords: Gradients, Safety, Peripheral Nerve StimulationThe algorithm we present in this work designs variable density spiral (VDS) trajectories and their respective gradient time courses based on the Stanford VDS-tool. In addition to hardware limits (maximum gradient strength and slew rate) a PNS threshold based on the SAFE-Model is introduced.

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