Three-Dimensional Modelling of the Current Induced in a Reception Antenna in IRM

In order to improve quality of a medical image, obtained by magnetic resonance, several factors can be modified, in particular the homogeneity of the value of the static field, the technique of acquisition with its parameters, the sensitivity of the reception antenna. On this last factor there remai...

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Bibliographic Details
Main Authors: Djennah, M., Abidi, Z., Khoudiri, S.
Format: Conference Proceeding
Language:English
Subjects:
Antenna of surface
Biomedical imaging
boundary integral
Eddy currents
Electromagnetic fields
Finite element methods
finite elements
Integral equations
Laboratories
Magnetic flux
Magnetic moments
Magnetic resonance
Magnetization
Maxwell equations
MRI
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Summary:In order to improve quality of a medical image, obtained by magnetic resonance, several factors can be modified, in particular the homogeneity of the value of the static field, the technique of acquisition with its parameters, the sensitivity of the reception antenna. On this last factor there remains progress very significant to achieve. In order to calculate with more precision the signal collected by the reception antenna, a new numerical approach is described. We use the coupling of the two methods finite elements-boundary integral to calculate the magnetic flux induced by the magnetization of the sample and receipt by the antenna. Numerical results for a tone antenna are presented
DOI:10.1109/ICECOM.2005.205044