Title :
Three-Dimensional Modelling of the Current Induced in a Reception Antenna in IRM
Author :
Djennah, M. ; Abidi, Z. ; Khoudiri, S.
Author_Institution :
Lab. Electromagn. Syst. EMP
Abstract :
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
Keywords :
biomedical MRI; boundary integral equations; finite element analysis; magnetic flux; magnetisation; receiving antennas; MRI; finite elements-boundary integral; magnetic flux; magnetic resonance; magnetization; medical image; reception antenna; three-dimensional modelling; tone antenna; Biomedical imaging; Electromagnetic fields; Finite element methods; Integral equations; Laboratories; Magnetic flux; Magnetic moments; Magnetic resonance; Magnetization; Maxwell equations; Antenna of surface; Eddy currents; MRI; boundary integral; finite elements;
Conference_Titel :
Applied Electromagnetics and Communications, 2005. ICECom 2005. 18th International Conference on
Conference_Location :
Dubrovnik
Print_ISBN :
953-6037-44-0
DOI :
10.1109/ICECOM.2005.205044
