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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
1987-12-14
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pubmed:abstractText |
We quantified pulmonary vascular permeability with positron emission tomography (PET) and gallium-68-(68Ga) labeled transferrin. Six dogs with oleic acid-induced lung injury confined to the left lower lobe, two normal human volunteers, and two patients with the adult respiratory distress syndrome (ARDS) were evaluated. Lung tissue-activity measurements were obtained from sequential 1-5 min PET scans collected over 60 min, after in vivo labeling of transferrin through intravenous administration of [68Ga]citrate. Blood-activity measurements were measured from simultaneously obtained peripheral blood samples. A forward rate constant describing the movement of transferrin from pulmonary vascular to extravascular compartments, the pulmonary transcapillary escape rate (PTCER), was then calculated from these data using a two-compartment model. In dogs, PTCER was 49 +/- 18 in normal lung tissue and 485 +/- 114 10(-4) min-1 in injured lung. A repeat study in these dogs 4 hr later showed no significant change. Values in the human subjects showed similarly marked differences between normal and abnormal lung tissue. We conclude that PET will be a useful method of evaluating vascular permeability changes after acute lung injury.
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pubmed:grant | |
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 |
Nov
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pubmed:issn |
0161-5505
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
28
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1704-16
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pubmed:dateRevised |
2011-11-17
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pubmed:meshHeading |
pubmed-meshheading:3499492-Animals,
pubmed-meshheading:3499492-Capillary Permeability,
pubmed-meshheading:3499492-Dogs,
pubmed-meshheading:3499492-Gallium Radioisotopes,
pubmed-meshheading:3499492-Humans,
pubmed-meshheading:3499492-Lung,
pubmed-meshheading:3499492-Oleic Acids,
pubmed-meshheading:3499492-Pulmonary Edema,
pubmed-meshheading:3499492-Respiratory Distress Syndrome, Adult,
pubmed-meshheading:3499492-Tomography, Emission-Computed,
pubmed-meshheading:3499492-Transferrin
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pubmed:year |
1987
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pubmed:articleTitle |
Measurements of pulmonary vascular permeability with PET and gallium-68 transferrin.
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pubmed:affiliation |
Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri 63110.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
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