Linked Life Data

8478705

Source:http://linkedlifedata.com/resource/pubmed/id/8478705

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1993-5-27
pubmed:abstractText
Thallium-201 reinjection following 3-4-hr redistribution imaging improves the detection of viable myocardium but considerably prolongs the total investigation time. We compared the results of immediate 201Tl reinjection with 3-hr redistribution imaging in 120 consecutive patients who were evaluated for myocardial ischemia. Thallium-201 was reinjected immediately following the postexercise study. The images were acquired 1 hr later and reacquired at 3 hr redistribution. A total of 960 segments per imaging series were evaluated, of which 320 (33%) segments showed perfusion defects on the post-exercise images. On the 1-hr images, 220 (69%) segments demonstrated enhanced thallium uptake, 97 (30%) segments did not change and 3 (1%) segments showed reverse redistribution. Of the 100 (97 + 3) persistent defects, only 12 (4%) segments showed fill-in of 201Tl on 3 hr redistribution images. A total of 49 (15%) segments showed reverse redistribution. Defects on postexercise images were seen in 95 patients (79%) of whom 9 (10%) showed no change on immediate reinjection images. In only 1 (1%) patient was the diagnosis changed from myocardial necrosis to myocardial ischemia after analysis of the 3-hr redistribution images. These data indicate that immediate postexercise reinjection of 201Tl followed by 1-hr image acquisition may be superior to 3-hr redistribution imaging in identifying viable myocardium in patients evaluated for myocardial ischemia. This protocol eliminates the need for an additional series of 3-4-hr redistribution images and offers the advantages of reduced total imaging time, improved convenience for the patient and increased patient throughput.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0161-5505
pubmed:author
pubmed:issnType
Print
pubmed:volume
34
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
737-43
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Immediate thallium-201 reinjection following stress imaging: a time-saving approach for detection of myocardial viability.
pubmed:affiliation
Department of Diagnostic Radiology (Division of Nuclear Medicine), University Hospital Leiden, The Netherlands.
pubmed:publicationType
Journal Article, Comparative Study