This paper presents a potential-based formulation conceived to estimate the electric field induced in a human body moving through the stray stationary magnetic field produced by magnetic resonance scanners. Two different descriptions are adopted, giving rise to two different driving terms, and the corresponding electromagnetic problems are solved numerically, according to a Finite Element approach. The application of the procedure recommended by the ICNIRP Guidelines to perform the exposure assessment is discussed and some examples, which refer to a realistic situation, are finally presented.

A Potential-based Formulation for Motion-Induced Electric Fields in MRI / Zilberti, Luca; Bottauscio, Oriano; Chiampi, M.. - In: IEEE TRANSACTIONS ON MAGNETICS. - ISSN 0018-9464. - 52:3(2016), p. 5000304. [10.1109/TMAG.2015.2474748]

A Potential-based Formulation for Motion-Induced Electric Fields in MRI

ZILBERTI, LUCA;BOTTAUSCIO, ORIANO;
2016

Abstract

This paper presents a potential-based formulation conceived to estimate the electric field induced in a human body moving through the stray stationary magnetic field produced by magnetic resonance scanners. Two different descriptions are adopted, giving rise to two different driving terms, and the corresponding electromagnetic problems are solved numerically, according to a Finite Element approach. The application of the procedure recommended by the ICNIRP Guidelines to perform the exposure assessment is discussed and some examples, which refer to a realistic situation, are finally presented.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11696/29049
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