Linked Life Data

18956467

Source:http://linkedlifedata.com/resource/pubmed/id/18956467

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2008-11-3
pubmed:abstractText
We present numerical simulations and experimental results for susceptibility weighted imaging (SWI) at 7 T. Magnitude, phase, and SWI contrast were simulated for different voxel geometries and imaging parameters, resulting in an echo time of 14 msec for optimum contrast between veins and surrounding tissue. Slice thickness of twice the in-plane voxel size or more resulted in optimum vessel visibility. Phantom and in vivo data are in very good agreement with the simulations and the delineation of vessels at 7 T was superior compared to lower field strengths. The phase of the complex data reveals anatomical details that are complementary to the corresponding magnitude images. Susceptibility weighted imaging at very high field strengths is a promising technique because of its high sensitivity to tissue susceptibility, its low specific absorption rate, and the phase's negligible sensitivity to B(1) inhomogeneities.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1522-2594
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
60
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1155-68
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Susceptibility weighted imaging at ultra high magnetic field strengths: theoretical considerations and experimental results.
pubmed:affiliation
Medical Physics Group, Institute for Diagnostic and Interventional Radiology, University Clinics, Friedrich Schiller-University, Jena, Germany. andreas.deistung@med.uni-jena.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't