RF Coils for MRI Applications: a Design Procedure

Rogovich, A.; Nepa, P; Manara, G.; Monorchio, A.

doi:10.1109/APS.2005.1551700

A design procedure for radio frequency (RF) coils to be used in magnetic resonance imaging (MRI) applications is presented. The analysis is carried out by resorting to a full-wave numerical code based on the method of moments (MoM). Indeed, at the increasing of the operating frequency quasi-static solutions are no longer valid and more accurate electromagnetic tools are needed. The optimization is based on an iterative procedure that has been implemented by using a genetic algorithm (GA). The GA is used to determine the geometry of the coil by imposing the homogeneity of the RF magnetic field amplitude in a volume inside the coil at the resonance frequency. Some preliminary numerical results have been obtained for a volume coil with cylindrical shape and resonating at 190 MHz

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/202683

Titolo:	RF Coils for MRI Applications: a Design Procedure
Autori interni:	ROGOVICH, ALESSANDRO NEPA, PAOLO MANARA, GIULIANO MONORCHIO, AGOSTINO
Anno del prodotto:	2005
Rivista:	DIGEST - IEEE ANTENNAS AND PROPAGATION SOCIETY. INTERNATIONAL SYMPOSIUM
Abstract:	A design procedure for radio frequency (RF) coils to be used in magnetic resonance imaging (MRI) applications is presented. The analysis is carried out by resorting to a full-wave numerical code based on the method of moments (MoM). Indeed, at the increasing of the operating frequency quasi-static solutions are no longer valid and more accurate electromagnetic tools are needed. The optimization is based on an iterative procedure that has been implemented by using a genetic algorithm (GA). The GA is used to determine the geometry of the coil by imposing the homogeneity of the RF magnetic field amplitude in a volume inside the coil at the resonance frequency. Some preliminary numerical results have been obtained for a volume coil with cylindrical shape and resonating at 190 MHz
Handle:	http://hdl.handle.net/11568/202683
ISBN:	0780388836
Appare nelle tipologie:	4.1 Contributo in Atti di convegno

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