Approximation of MRI Scanner Stray Magnetic Field with Simplified Models
Date issued
2013
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of West Bohemia
Abstract
The paper proposes a new approach to compute
the stray magnetic field of an MRI scanner. First the simplified
model of MRI coils is created. The model should accurately
simulate the stray magnetic field while being highly simplified and
thus saving significantly the numerical resources. The simplified,
analytical model is created by solving an inverse problem.
Two inverse problem solvers: Levenberg-Marquardt and Particle
Swarm Optimization are compared in this work.
Description
Subject(s)
zobrazování magnetickou rezonancí, MRI skener, magnetické pole, zjednodušené modely
Citation
ISTET 2013: International Symposiumon Theoretical Electrical Engineering: 24th – 26th June 2013: Pilsen, Czech Republic, p. I-9-I-10.