Document Detail


Simultaneous measurement of myocardial perfusion and ventricular function during exercise from a single injection of technetium-99m sestamibi in coronary artery disease.
MedLine Citation:
PMID:  2145749     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
New radiopharmaceuticals permit simultaneous assessment of myocardial perfusion and left ventricular function using a single tracer injection. The purpose of this study was to quantitate the relation between myocardial perfusion and function at rest and during exercise in patients with documented coronary artery disease (CAD). A rest first-pass radionuclide angiocardiogram (RNA) was recorded in 51 patients with CAD during injection of 10 mCi of technetium-99m (Tc-99m) sestamibi, and tomographic perfusion images were obtained 60 minutes later. A treadmill test was then performed, and on attainment of an exercise end point a second first-pass RNA was recorded with 30 mCi of Tc-99m sestamibi. Tomographic images reflecting myocardial perfusion during exercise were obtained 1 hour later. Tomographic perfusion defect size, quantified using modifications of the Cedars-Sinai program, correlated directly with end-systolic volume and inversely with ejection fraction at rest and during exercise. However, perfusion defect size often varied widely in patients with similar left ventricular function. This independence between measurements of perfusion and function suggests that simultaneous assessment of the 2 physiologic variables could improve the diagnostic and prognostic information of radionuclide tests.
Authors:
R H Jones; S Borges-Neto; J M Potts
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The American journal of cardiology     Volume:  66     ISSN:  0002-9149     ISO Abbreviation:  Am. J. Cardiol.     Publication Date:  1990 Oct 
Date Detail:
Created Date:  1990-11-20     Completed Date:  1990-11-20     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  68E-71E     Citation Subset:  AIM; IM    
Affiliation:
Department of Surgery, Duke University Medical Center, Durham, North Carolina 27710.
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MeSH Terms
Descriptor/Qualifier:
Coronary Disease / radionuclide imaging*
Exercise Test
Female
Heart / radionuclide imaging
Humans
Image Processing, Computer-Assisted
Male
Middle Aged
Nitriles / diagnostic use*
Organotechnetium Compounds / diagnostic use*
Technetium Tc 99m Sestamibi
Tomography, Emission-Computed, Single-Photon*
Ventricular Function / physiology
Ventriculography, First-Pass*
Grant Support
ID/Acronym/Agency:
17670//PHS HHS
Chemical
Reg. No./Substance:
0/Nitriles; 0/Organotechnetium Compounds; 109581-73-9/Technetium Tc 99m Sestamibi

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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