Source:http://linkedlifedata.com/resource/pubmed/id/12107586
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
2002-7-10
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pubmed:abstractText |
Vessel oxygen saturation can be determined with MR oximetry using an in vivo measurement of signal decay (T2) and the calibration curve relating T2 to blood oxygen saturation (%HbO(2)), where: 1/T2=1/T2O+K (1-%HbO(2)/100)(2) and K is a constant parameter which correlates with measured fibrinogen levels. The ability to noninvasively measure %HbO(2) in cardiac chambers and vessels has enormous potential in children with congenital heart disease (CHD). Objective: The purpose of the study was to prospectively characterize the T2-%HbO(2) relationship in infants where T2-%HbO(2) is the relationship between T2 and %HbO(2) (blood oxygen saturation) expressed by the equation given above, and to determine whether adult values for K and T2O (where T2O is the T2 of fully oxygenated blood) can be extrapolated to pediatric patients with CHD. A second objective was to apply this method to calculate the %HbO(2) in vivo using MR imaging in infants with CHD.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0301-0449
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
32
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
518-22
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:12107586-Blood Gas Analysis,
pubmed-meshheading:12107586-Calibration,
pubmed-meshheading:12107586-Child, Preschool,
pubmed-meshheading:12107586-Female,
pubmed-meshheading:12107586-Fibrinogen,
pubmed-meshheading:12107586-Heart Catheterization,
pubmed-meshheading:12107586-Heart Defects, Congenital,
pubmed-meshheading:12107586-Hematocrit,
pubmed-meshheading:12107586-Hemoglobins,
pubmed-meshheading:12107586-Humans,
pubmed-meshheading:12107586-Infant,
pubmed-meshheading:12107586-Magnetic Resonance Angiography,
pubmed-meshheading:12107586-Male,
pubmed-meshheading:12107586-Oximetry,
pubmed-meshheading:12107586-Oxygen,
pubmed-meshheading:12107586-Signal Processing, Computer-Assisted
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pubmed:year |
2002
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pubmed:articleTitle |
MRI-based blood oxygen saturation measurements in infants and children with congenital heart disease.
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pubmed:affiliation |
Department of Paediatrics and Division of Cardiology, The Hospital for Sick Children, 555 University Avenue, Toronto, Ontario, M5G 1X8, Canada. lynne_nield@hotmail.com
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pubmed:publicationType |
Journal Article,
Clinical Trial,
Research Support, Non-U.S. Gov't
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