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STEINBAUER, M. BARTUŠEK, K.
Original Title
Measurement and simulation of material influence in MR tomography
Type
conference paper
Language
English
Original Abstract
Materials with different electrical conductivity and/or magnetic susceptibility can cause deformation of magnetic field in MR tomograph, resulting in errors in obtained image. Using simulation and experimental verification we can solve the effect of changes in homogeneity of static and HF magnetic fields caused by specimen made from conductive and/or magnetic material in MR tomograph. This paper describes theoretical base and experimental measurement of the magnetic resonance imaging method for susceptibility measurement. Described technique is suitable for substances with no signal in MR tomography. The method uses deformation of magnetic induction field in specimen vicinity. For MR purposes it is necessary to immerse specimen into reference medium with measurable MR signal (demineralized water is suitable). Shape of magnetic field changed by specimen impact (reaction field) we measure by means of Gradient Echo (GE) measuring method.
Keywords
MR tomography, magnetic susceptibility, conductivity, reaction field, gradient echo
Authors
STEINBAUER, M.; BARTUŠEK, K.
RIV year
2006
Released
6. 9. 2006
Publisher
L'Institut Supérieur d'Electronique de Paris, Paris, France
Location
ISBN
80-214-3250-0
Book
Proceedings of the International Workshop ISEP - UTEE 3. - 6. 9. 2006 Paris
Pages from
87
Pages to
92
Pages count
6
BibTex
@inproceedings{BUT19312, author="Miloslav {Steinbauer} and Karel {Bartušek}", title="Measurement and simulation of material influence in MR tomography", booktitle="Proceedings of the International Workshop ISEP - UTEE 3. - 6. 9. 2006 Paris", year="2006", pages="6", publisher="L'Institut Supérieur d'Electronique de Paris, Paris, France", address="L'Institut Supérieur d'Electronique de Paris, Paris, France", isbn="80-214-3250-0" }