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Radio-frequency coil design for high...

Bogdanov, Gene.

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Radio-frequency coil design for high-field magnetic resonance imaging.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Radio-frequency coil design for high-field magnetic resonance imaging./
Author:	Bogdanov, Gene.
Description:	202 p.
Notes:	Adviser: Reinhold Ludwig.
Contained By:	Dissertation Abstracts International63-03B.
Subject:	Engineering, Biomedical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3047808
ISBN:	0493618651

Radio-frequency coil design for high-field magnetic resonance imaging.
Bogdanov, Gene.

Radio-frequency coil design for high-field magnetic resonance imaging. - 202 p.

Adviser: Reinhold Ludwig.

Thesis (Ph.D.)--Worcester Polytechnic Institute, 2002.

Magnetic resonance imaging (MRI) is a valuable medical diagnostic tool that uses the interaction of strong magnetic fields and atomic nuclei in biological tissues to obtain high-resolution tomographic images of patients. It is also a fast growing research field dominated by functional MRI (fMRI), which allows real-time monitoring of neuronal activity in the brain. The demanding nature of this new research necessitates the move towards higher and higher magnetic field strength to improve image signal-to-noise ratio (SNR).

ISBN: 0493618651Subjects--Topical Terms:

1017684
Engineering, Biomedical.

Radio-frequency coil design for high-field magnetic resonance imaging.
LDR:02880nam 2200325 a 45 001 934592
005 20110509
008 110509s2002 eng d
020 $a 0493618651
035 $a (UnM)AAI3047808
035 $a AAI3047808
040 $a UnM $c UnM
100 1 $a Bogdanov, Gene. $3 1258292
245 1 0 $a Radio-frequency coil design for high-field magnetic resonance imaging.
300 $a 202 p.
500 $a Adviser: Reinhold Ludwig.
500 $a Source: Dissertation Abstracts International, Volume: 63-03, Section: B, page: 1481.
502 $a Thesis (Ph.D.)--Worcester Polytechnic Institute, 2002.
520 $a Magnetic resonance imaging (MRI) is a valuable medical diagnostic tool that uses the interaction of strong magnetic fields and atomic nuclei in biological tissues to obtain high-resolution tomographic images of patients. It is also a fast growing research field dominated by functional MRI (fMRI), which allows real-time monitoring of neuronal activity in the brain. The demanding nature of this new research necessitates the move towards higher and higher magnetic field strength to improve image signal-to-noise ratio (SNR).
520 $a The MRI radio-frequency (RF) coil is a critical component of an MRI system that excites the nuclei in the sample and receives the signal that is reconstructed into the image. RF coil quality is as important to the image SNR as the primary magnetic field strength. However, designing RF coils for high-field MRI is a difficult challenge, since the older designs do not scale well to higher frequency (which increases linearly with magnetic field strength), and good high-frequency coil modeling tools are not available.
520 $a In this project, unconventional RF coil designs and simulation tools are developed with a goal of overcoming the limitations of existing coil technology and modeling methodology. The new modeling tools are based on the multi-conductor transmission (MTL) line theory and the method of lines (MoL). These methods enable high-frequency coil design and optimization without requiring excessive computational resources typical of traditional three-dimensional numerical approaches.
520 $a The modeling methods are applied to practical coil design, resulting in the development of the microstrip TEM resonator volume coil concept and the construction of prototype coils. A dual-coil system designed for brain imaging in small rodents at 4.7 T (200 MHz) produced excellent images of the entire brain. A larger volume coil designed for imaging rhesus monkeys at 4.7 T also demonstrated good results.
590 $a School code: 0774.
650 4 $a Engineering, Biomedical. $3 1017684
650 4 $a Engineering, Electronics and Electrical. $3 626636
650 4 $a Health Sciences, Radiology. $3 1019076
690 $a 0541
690 $a 0544
690 $a 0574
710 2 0 $a Worcester Polytechnic Institute. $3 1025154
773 0 $t Dissertation Abstracts International $g 63-03B.
790 $a 0774
790 1 0 $a Ludwig, Reinhold, $e advisor
791 $a Ph.D.
792 $a 2002
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3047808