Methods for the design, optimization, and image correction of local insert gradient system in magnetic resonance imaging

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Publication Type dissertation
School or College College of Engineering
Department Electrical & Computer Engineering
Author Moon, Sung Man
Title Methods for the design, optimization, and image correction of local insert gradient system in magnetic resonance imaging
Date 2010-08
Description Developing faster Magnetic Resonance Imaging (MRI) gradient systems is desirable for fast imaging pulse sequences. Because of their large size, reduced efficiency, and higher inductance, system body gradient coils are limited in performance. This limitation can be reduced by designing proper local gradient coils. In this dissertation, various types of local insert gradient coil designs, as well as their optimization and image correction techniques are investigated. Conventional method of designing planar gradient systems that uses twodimensional stream functions can be more computationally intensive than optimizing the one dimensional stream functions required for cylindrical gradients. In this dissertation, a novel planar gradient design method, which simplifies the twodimensional planar gradient coil design problem to a faster and easier one-dimensional problem by using a conformal mapping technique. The simulated gradient filed maps prove that the proposed gradient design technique creates same homogeneous gradient and works well throughout the imaging volume.
Type Text
Publisher University of Utah
Subject Gradient coil; Gradient design; Insert gradient; Magnetic resonance; MRI; Optimization; Image correction; Gradient system
Dissertation Institution University of Utah
Dissertation Name PhD
Language eng
Rights Management ©Sung Man Moon
Format Medium application/pdf
Format Extent 4,088,808 bytes
Source Original in Marriott Library Special Collections, QC3.5 2010 .M66
ARK ark:/87278/s6j96mxd
Setname ir_etd
Date Created 2012-04-23
Date Modified 2017-11-20
ID 192784
Reference URL https://collections.lib.utah.edu/ark:/87278/s6j96mxd