Method for Magnetic Field Approximation in MR Tomography

0308364 - ÚPT 2008 RIV GB eng C - Conference Paper (international conference)
Hadinec, M. - Fiala, P. - Kroutilová, E. - Steinbauer, M. - Bartušek, Karel
Method for Magnetic Field Approximation in MR Tomography.
[Metoda pro aproximaci magnetického pole v MR tomografii.]
Proceedings of PIERS 2008 in Hangzhou. Cambridge: The Electromagnetics Academy, 2008, s. 1179-1183. ISBN 978-1-934142-00-4.
[Progress In Electromagnetics Research Symposium - PIERS 2008. Hangzhou (CN), 24.03.2008-28.03.2008]
Institutional research plan: CEZ:AV0Z20650511
Keywords : MRI * magnetic field approximation
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering

This paper describes a method, which can be used for creating map of magnetic field. Method has a great usage in magnetic resonance tomography, when we need to get information about homogeneity and characteristics of magnetic field inside the working space of the MR tomograph. The main purpose of this article is to describe basic principles of magnetic resonance phenomenon and mathematical method of Legendre polynoms which can be used for signal processing of FID (Free Induction Decay) signal obtained from tomograph detection coils. In the end of my article is experimental solution of magnetic field and models of magnetic field created by Matlab.

Článek popisuje metodu pro získání mapy magnetického pole. Je uveden popis jevu magnetické resonance, zpracování měřeného signálu a využití Legendových polynomů pro matematický rozklad magnetického pole.
Permanent Link: http://hdl.handle.net/11104/0160869