Design of magnetic resonance imaging (MRI) RF coils by using the method of moments

Author

Rogovich, Alessandro ; Monorchio, Agostino ; Nepa, Paolo ; Manara, Giuliano ; Giovannetti, Giulio ; Landini, Luigi

Author_Institution

Dept. of Inf. Eng., Pisa Univ., Italy

Volume

1

fYear

2004

fDate

20-25 June 2004

Firstpage

950

Abstract

A method of moments (MoM) technique is employed to design RF coils for magnetic resonance imaging (MRI) applications. In particular, a full wave simulator has been usefully applied to determine the principal characteristics of the antennas used for this kind of application, i.e. the resonant modes, the Q factor and the uniformity of the magnetic field radiated by the sensor. Indeed, with increasing operating frequency, magnetostatic models are no longer valid and more sophisticated electromagnetic tools are needed. Some examples relevant to the design of different kind of birdcage coils are presented to demonstrate the effectiveness of the method.

Keywords

Q-factor; coils; magnetic fields; magnetic resonance imaging; method of moments; MRI RF coils; Q factor; antennas; birdcage coils; electromagnetic tools; magnetic field uniformity; magnetic resonance imaging RF coils; magnetostatic models; method of moments; resonant modes; Coils; Electromagnetic modeling; Electromagnetic radiation; Magnetic resonance imaging; Magnetic sensors; Magnetostatic waves; Moment methods; Q factor; Radio frequency; Sensor phenomena and characterization;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2004. IEEE

Print_ISBN

0-7803-8302-8

Type

conf

DOI

10.1109/APS.2004.1329829

Filename

1329829