Title page for ETD etd-050509-144928

Document Type thesis

Author Name Serano, Peter James

URN etd-050509-144928

Title Design of a Multi-Array Radio-Frequency Coil for Interventional MRI of the Female Breast

Degree MS

Department Electrical & Computer Engineering

Advisors
Reinhold Ludwig, Advisor
Sergey Makarov, Committee Member
Craig Ferris, Committee Member

Keywords
MRI
RF
RF Coil Array
Electromagnetic Simulation
Magnetic Resonance Imaging

Date of Presentation/Defense 2009-04-16

Availability unrestricted

Abstract
A new method for the simulation of radio frequency (RF) coils has been developed. This method utilizes the FEM simulation package Ansoft HFSS as a base for the modeling of RF coils with complex biological loading effects. The abilities of this software have been augmented with custom MATLAB code to enable the fast prediction of lumped element values needed to properly tune and match the coil structure as well as to perform the necessary post processing of simulation data in order to quickly generate and evaluate field data of the resonating coil and compare design variations. This method was evaluated for accuracy and implemented in the re-design of an existing four channel breast coil array for clinical imaging of the female breasts. Based on the simulation results, a commercially viable printed circuit board (PCB) implementation was developed and tested in a clinical 1.5 T MR scanner. The new design allows for wide open bilateral access to the breast regions in order to accommodate various interventional procedures. The layout has also increased axillary B1 field coverage with minor penalty to the signal-to-noise ratio of the coil array, enabling high-resolution imaging over a wide field-of-view.

Files
Peter_Serano_MS_Thesis.pdf

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Document Type	thesis
Author Name	Serano, Peter James
URN	etd-050509-144928
Title	Design of a Multi-Array Radio-Frequency Coil for Interventional MRI of the Female Breast
Degree	MS
Department	Electrical & Computer Engineering
Advisors	Reinhold Ludwig, Advisor Sergey Makarov, Committee Member Craig Ferris, Committee Member
Keywords	MRI RF RF Coil Array Electromagnetic Simulation Magnetic Resonance Imaging
Date of Presentation/Defense	2009-04-16
Availability	unrestricted
Abstract A new method for the simulation of radio frequency (RF) coils has been developed. This method utilizes the FEM simulation package Ansoft HFSS as a base for the modeling of RF coils with complex biological loading effects. The abilities of this software have been augmented with custom MATLAB code to enable the fast prediction of lumped element values needed to properly tune and match the coil structure as well as to perform the necessary post processing of simulation data in order to quickly generate and evaluate field data of the resonating coil and compare design variations. This method was evaluated for accuracy and implemented in the re-design of an existing four channel breast coil array for clinical imaging of the female breasts. Based on the simulation results, a commercially viable printed circuit board (PCB) implementation was developed and tested in a clinical 1.5 T MR scanner. The new design allows for wide open bilateral access to the breast regions in order to accommodate various interventional procedures. The layout has also increased axillary B1 field coverage with minor penalty to the signal-to-noise ratio of the coil array, enabling high-resolution imaging over a wide field-of-view.
Files	Peter_Serano_MS_Thesis.pdf