Analysis of MR Images Deformed by Magnetic Implants

Author

Bartusek, K. ; Smekal, Z. ; Gescheidtova, E.

Author_Institution

Inst. of Sci. Instrum., Acad. of Sci. of the Czech Republic, Brno

fYear

2008

fDate

13-18 April 2008

Firstpage

312

Lastpage

316

Abstract

Electrically and magnetically conducting materials found in the human body cause major deformations in images obtained by magnetic resonance imaging (MRI). To study the deformations and to develop new MR methods with these deformations suppressed, a method for measuring magnetic susceptibility has been designed for samples that do not produce MR signals. In the paper, a method is described for processing the phase image being measured, in order to greatly eliminate systematic errors in the MR measurement of magnetic susceptibility and to calculate it.

Keywords

biomedical MRI; biomedical measurement; conducting materials; magnetic field effects; magnetic materials; magnetic susceptibility; measurement errors; medical image processing; prosthetics; MR images; MR measurement; electrically conducting materials; human body; magnetic field deformation suppression; magnetic implants; magnetic resonance imaging; magnetic susceptibility; magnetically conducting materials; phase image processing; systematic errors; Conducting materials; Image analysis; Implants; Magnetic analysis; Magnetic field measurement; Magnetic materials; Magnetic resonance imaging; Magnetic susceptibility; Magnetostatic waves; Phase measurement; Image deformation; MR images; image phase unwrapping; magnetically conducting materials;

fLanguage

English

Publisher

ieee

Conference_Titel

Systems, 2008. ICONS 08. Third International Conference on

Conference_Location

Cancun

Print_ISBN

978-0-7695-3105-2

Electronic_ISBN

978-0-7695-3105-2

Type

conf

DOI

10.1109/ICONS.2008.19

Filename

4497142