Linked Life Data

2299073

Source:http://linkedlifedata.com/resource/pubmed/id/2299073

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1990-3-13
pubmed:abstractText
The frequency of thallium-201 late reversibility was prospectively assessed in 118 patients who had stress-redistribution thallium-201 studies by single photon emission computed tomography (SPECT). These patients demonstrated two or more segments with nonreversible defects at 4 h imaging and underwent late (18 to 72 h) redistribution imaging. When the criterion of late reversibility was defined as greater than or equal to 1 segment with 4 h nonreversible defects demonstrating late reversibility, it was present in 62 (53%) of the 118 patients and 164 (22%) of 762 segments. When the criterion of greater than or equal to 2 segments was used, late reversibility was found in 41 (35%) of 118 patients and 143 (19%) of 762 segments. The frequency of detected reversible defects increased from 27% at 4 h imaging to 43% at combined 4 h and late imaging (p less than 0.0001) and was significantly increased in all myocardial regions. In comparing the efficacy of initial and late imaging alone versus performing initial, 4 h and late imaging for the identification of reversible defects, 421 (94%) of 449 segments classified as reversible by the latter protocol were also correctly identified by the early and late imaging only approach, with the remaining 6% (28 segments) comprising those segments demonstrating the reversible pattern at 4 h and the nonreversible pattern at late imaging. No major differences were noted with respect to clinical, stress electrocardiographic and scintigraphic variables between the 118 patients undergoing late imaging and 98 additional randomly selected patients with two or more nonreversible defects at 4 h, who did not have late imaging.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:grant
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0735-1097
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
334-40
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
The frequency of late reversibility in SPECT thallium-201 stress-redistribution studies.
pubmed:affiliation
Department of Medicine (Division of Cardiology), Cedars-Sinai Medical Center, Los Angeles, California 90048.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Case Reports, Research Support, Non-U.S. Gov't