Couple Electromagnetic and Neuronal Dynamics Simulation of Gradient Coil Switching Induced Nerve Stimulation
Poster (konferens), 2014

Nerve stimulation by rapidly switching gradient coils is a safety concern in MR. An EM and thermal simulation platform has been coupled with a neuronal dynamics modeling code, to investigate such interactions in realistic anatomical models. A locally temperature dependent variant of the SENN model, commonly employed for safety threshold assessment, has been developed. Modeling of sciatic nerve stimulation by gradient coil switching, considering the impact of RF birdcage coil induced heating, showed that the model anisotropy, the field variation along the nerve and local temperature have a relevant impact that can be studied using the coupled EM-neuron simulation platform.

NMR magnetic field

Författare

Ioannis Vogiatzis Oikonomidis

Chalmers, Signaler och system

Esra Neufeld

Johanna Wolf

Deepika Sharma

Yngve Hamnerius

Signaler och system, Signalbehandling och medicinsk teknik, Biomedicinsk elektromagnetik

Niels Kuster

Proceedings: Joint Annual Meeting ISMRM-ESMRMB 2014
SMRT 23rd Annual Meeting 10-16 May, 2014 Milan Italy

paper 1388-

Styrkeområden

Livsvetenskaper och teknik

Ämneskategorier

Radiologi och bildbehandling

Annan elektroteknik och elektronik