Title page for ETD etd-0114104-103813

Document Type thesis

Author Name Obi, Aghogho A

URN etd-0114104-103813

Title A Novel Radio Frequency Coil Design for Breast Cancer Screening in a Magnetic Resonance Imaging System.

Degree MS

Department Electrical & Computer Engineering

Advisors
Prof. Reinhold Ludwig, Advisor
Prof. John Sullivan, Committee Chair
Prof. William Michalson, Committee Member
Prof. Fred Looft, Department Head

Keywords
Magnetic Resonance Imaging
Radio Frequency Coil
Breast Cancer
Imaging Systems

Date of Presentation/Defense 2003-12-12

Availability unrestricted

Abstract
Magnetic Resonance Imaging (MRI) is a widely used soft tissue imaging technique that has gained considerable success because of its sensitivity to several tissue parameters.
However, commercially available whole-body imaging systems with large encircling radio frequency (RF) and gradient coils are less efficient when the goal is to obtain detailed, high-resolution images with high specificity and
sensitivity from localized regions of the body such as the female breast.
This research addresses these problems by proposing a new design in RF coil development for breast cancer screening in a conventional 1.5T MRI system. The new design provides two resonant receiving modes that operate in a
quadrature configuration, and a region of interest (ROI) that closely conforms to the shape of the female breast.
We adopted an optimum design strategy that combined the analytic Biot-Savart intergral equation with the Method of Moment formulation in the development of electromagnetic models and simulation tools. These models were used to analyze the magnetic field distribution and the
spatial field coverage, as well as the magnetic field uniformity in the ROI. Results from our analysis were employed in the construction of a highly scalable prototype. The validation of our design strategy is confirmed by comparisons with
the commercial Ansoft HFSS v8.5 finite element package.

Files
MastersThesis.pdf

Browse by Author | Browse by Department | Search all available ETDs

Questions? Email etd-questions@wpi.edu
Maintained by webmaster@wpi.edu

Document Type	thesis
Author Name	Obi, Aghogho A
URN	etd-0114104-103813
Title	A Novel Radio Frequency Coil Design for Breast Cancer Screening in a Magnetic Resonance Imaging System.
Degree	MS
Department	Electrical & Computer Engineering
Advisors	Prof. Reinhold Ludwig, Advisor Prof. John Sullivan, Committee Chair Prof. William Michalson, Committee Member Prof. Fred Looft, Department Head
Keywords	Magnetic Resonance Imaging Radio Frequency Coil Breast Cancer Imaging Systems
Date of Presentation/Defense	2003-12-12
Availability	unrestricted
Abstract Magnetic Resonance Imaging (MRI) is a widely used soft tissue imaging technique that has gained considerable success because of its sensitivity to several tissue parameters. However, commercially available whole-body imaging systems with large encircling radio frequency (RF) and gradient coils are less efficient when the goal is to obtain detailed, high-resolution images with high specificity and sensitivity from localized regions of the body such as the female breast. This research addresses these problems by proposing a new design in RF coil development for breast cancer screening in a conventional 1.5T MRI system. The new design provides two resonant receiving modes that operate in a quadrature configuration, and a region of interest (ROI) that closely conforms to the shape of the female breast. We adopted an optimum design strategy that combined the analytic Biot-Savart intergral equation with the Method of Moment formulation in the development of electromagnetic models and simulation tools. These models were used to analyze the magnetic field distribution and the spatial field coverage, as well as the magnetic field uniformity in the ROI. Results from our analysis were employed in the construction of a highly scalable prototype. The validation of our design strategy is confirmed by comparisons with the commercial Ansoft HFSS v8.5 finite element package.
Files	MastersThesis.pdf