Linked Life Data

963852

Source:http://linkedlifedata.com/resource/pubmed/id/963852

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1976-12-1
pubmed:abstractText
The reliability of myocardial perfusion scintigrams with thallium-201 (201Tl) for detecting areas of hypoperfusion was assessed in 16 closed-chest dogs. Variable areas of ischemia were produced either by occluding or stenosing the left anterior descending coronary artery. Cardiac scintigrams taken in four projections were compared with regional myocardial perfusion maps. Segmental concentrations and segmental perfusions were quantitated by counting the emissions from 201Tl and the microspheres in each of 96 segments of the left ventricle. In addition, studies with a phantom were performed. The results indicate: 1) The emissions from 201Tl and from microspheres correlated well in ischemic segments (r = 0.93 +/- SE 0.02). 2) Seven of twelve ischemic hearts had definitely abnormal scintigrams and in each of these the hypoperfused zone was greater than 4.9 grams and perfusion was decreased by more than 45%. 3) In the phantom, abnormal scintigrams could be detected in the presence of lesser deficits than in the dogs. The limitation of the thallium perfusion scintigrams will be the inconsistent detection of small perfusion deficits.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0009-7322
pubmed:author
pubmed:issnType
Print
pubmed:volume
54
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
640-6
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1976
pubmed:articleTitle
Limitations of thallium-201 myocardial perfusion scintigrams.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.