Document Detail


Diagnostic value of technetium-99m-MIBI as a myocardial perfusion imaging agent: comparison of long and short intervals between rest and stress injections.
MedLine Citation:
PMID:  1499174     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To assess the diagnostic value of technetium-99m-MIBI (99mTc-MIBI) as a myocardial perfusion imaging agent, and if rest and exercise scans could be performed on the same day, 21 patients with coronary artery disease were studied. Qualitative planar 201-thallium (201Tl) scans, coronary angiography, or both were also performed (median between studies 11 days). In 10 patients an injection of 740 mBq of 99mTc-MIBI at stress was followed by a second injection of 740 mBq at rest 24 h later (long interal) (LI). In 11 patients injection of 370 mBq at rest was followed 3 h later by an injection of 740 mBq at stress (short interval) (SI). Exercise scans were performed to similar maximal work load (LI = 6.6 +/- 1.8 METs; SI = 6.3 +/- 1.7 METs; 201Tl = 6.8 +/- 1.2 METs; p = NS) and double product (LI = 19551 +/- 7370; SI = 19900 +/- 6797; 201Tl = 19965 +/- 5282; p = NS). Overall, 99mTc-MIBI and 201Tl agreed in 92% of the patients tested and in 165 of 180 (92%) left ventricular segments in both 99mTc-MIBI protocols using short and long intervals between injections. In 15 patients with significant stenosis, 99mTc-MIBI correctly identified 13 patients (sensitivity of 87%). Thus, 99mTc-MIBI is a useful imaging agent with similar diagnostic value as 201Tl. In spite of its lack of myocardial redistribution, 99mTc-MIBI rest and exercise scans performed on the same day seem to have a similar concordance rate with 201Tl as when performed on separate days.
Authors:
J Magriñà; X Bosch; A Garcia; F Pons; M Moragas; E Roig; F Navarro Lopez; J Setoain
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Clinical cardiology     Volume:  15     ISSN:  0160-9289     ISO Abbreviation:  Clin Cardiol     Publication Date:  1992 Jul 
Date Detail:
Created Date:  1992-09-17     Completed Date:  1992-09-17     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7903272     Medline TA:  Clin Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  497-503     Citation Subset:  IM    
Affiliation:
Cardiology Service, University of Barcelona, Spain.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Contrast Media*
Coronary Angiography
Coronary Disease / radionuclide imaging*
Exercise Test*
Female
Hemodynamics / physiology
Humans
Male
Middle Aged
Nitriles / diagnostic use*
Organotechnetium Compounds / diagnostic use*
Technetium Tc 99m Sestamibi
Thallium Radioisotopes / diagnostic use
Chemical
Reg. No./Substance:
0/Contrast Media; 0/Nitriles; 0/Organotechnetium Compounds; 0/Thallium Radioisotopes; 109581-73-9/Technetium Tc 99m Sestamibi

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