| Thallium-201 versus technetium-99m pyrophosphate myocardial imaging in detection and evaluation of patients with acute myocardial infarction. | |
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MedLine Citation:
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PMID: 7006365 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Thallium-201 myocardial imaging is of value in the early detection and evaluation of patients with suspected acute infarction. The extent of a thallium defect in an initial myocardial image may have important prognostic value. Tomographic imaging techniques hold promise for increased diagnostic sensitivity and more accurate quantitation of both infarcted and residual viable myocardium. Thallium imaging may have a special value in characterizing patients with cardiogenic shock and in detecting patients at risk for subsequent infarction or death or death or both, before hospital discharge. Approximately 95 percent of patients with transmural or nontransmural myocardial infarction can be detected with technetium-99m pyrophosphate myocardial imaging if the imaging is performed 24 to 72 hours after the onset of symptoms. Pyrophosphate imaging has been useful in localizing the site and determining the extent of acute myocardial infarction. The "doughnut" pattern is associated with a relatively large incidence of subsequent congestive heart failure and death. However, the clinical utility of this information is limited because it is usually not available when it is most needed, on admission to the coronary care unit. Pyrophosphate imaging may have an important role in the evaluation of patients during the early follow-up period after hospital discharge from an episode of acute infarction. The finding of a persistently positive pyrophosphate image suggests a poor prognosis and is associated with a relatively large incidence of subsequent myocardial infarction and death. |
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Authors:
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B Pitt; J H Thrall |
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Publication Detail:
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Type: Comparative Study; Journal Article; Review |
Journal Detail:
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Title: The American journal of cardiology Volume: 46 ISSN: 0002-9149 ISO Abbreviation: Am. J. Cardiol. Publication Date: 1980 Dec |
Date Detail:
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Created Date: 1981-03-17 Completed Date: 1981-03-17 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0207277 Medline TA: Am J Cardiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1215-23 Citation Subset: AIM; IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acute Disease Angina Pectoris / diagnosis Coronary Artery Bypass Coronary Care Units Coronary Disease / radionuclide imaging Electrocardiography Humans Myocardial Infarction / diagnosis, radionuclide imaging* Prognosis Radioisotopes / diagnostic use* Shock, Cardiogenic / diagnosis Technetium / diagnostic use* Thallium / diagnostic use* Time Factors |
| Chemical | |
Reg. No./Substance:
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0/Radioisotopes; 7440-26-8/Technetium; 7440-28-0/Thallium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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