Linked Life Data

16902976

Source:http://linkedlifedata.com/resource/pubmed/id/16902976

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2006-8-30
pubmed:abstractText
Parallel imaging (PI) techniques employ the use of multiple radiofrequency (RF) channels to transmit and/or receive the NMR signal. In the current study we use a finite difference time domain (FDTD) method to simulate the electromagnetic fields of a RF coil array operating in transmit-receive (transceive) mode and receive-only mode. Optimization of these configurations for PI is studied as well. Our results suggest that a coil array can effectively be used for transceive or receive-only PI techniques. For a head coil configuration, the sensitivity encoding (SENSE) optimized coil array gap size and PI acceleration factor for MRI are shown to be a function of the physiological-to-intrinsic-noise ratio (PhINR) with a much stronger dependence on acceleration factor than gap size. The results provide a means to optimize any PI sequence by varying the acceleration factor based on the measured PhINR. In addition, an example design for an eight-element transceive coil array for heads at 4 T is given.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0740-3194
pubmed:author
pubmed:copyrightInfo
Copyright (c) 2006 Wiley-Liss, Inc.
pubmed:issnType
Print
pubmed:volume
56
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
630-6
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
SENSE optimization of a transceive surface coil array for MRI at 4 T.
pubmed:affiliation
Department of Medical Biophysics, University of Western Ontario, London, Ontario, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Evaluation Studies