Title :
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
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;
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
DOI :
10.1109/ICONS.2008.19
