Document Detail


Technetium-99m tetrofosmin rest/stress myocardial SPET with a same-day 2-hour protocol: comparison with coronary angiography. A Spanish-Portuguese multicentre clinical trial.
MedLine Citation:
PMID:  8662097     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Technetium-99m tetrofosmin (Myoview) has unique properties for myocardial perfusion imaging very early after injection of the tracer. We used a very short same-day rest/stress protocol, to be performed within 2 h and evaluated its diagnostic accuracy. The study included 144 patients from seven Spanish and four Portuguese centres with a diagnosis of uncomplicated coronary artery disease (CAD); 78 patients (54%) had no history of prior myocardial infarction. Patients were injected with </=300 MBq 99mTc-tetrofosmin at rest and </=900 MBq approximately 1 h later at peak exercise. Single-photon emission tomographic (SPET) acquisitions were initiated within 5-30 min post injection. The results were compared with those of coronary angiography (CA). The data of 142 patients were completely evaluable (two with non-evaluable images were excluded). The quality of rest images was excellent or good in 86%, regionally problematic in 7%, poor but well interpretable in 5% and non-evaluable in 2%. The overall sensitivity for the detection of CAD was 93%, the specificity 38% and the accuracy 85%. The localization of defects by SPET in relation to the perfusion territories of stenosed vessels (>/=50%) was achieved with a sensitivity of 64% for the left anterior descending artery, 49% for the left circumflex artery and 86% for the right coronary artery, and an accuracy of 71%, 72% and 73% respectively. Concordance of SPET and CA was 62% for single-vessel disease and 68% for multivessel disease. In conclusion, this Spanish-Portuguese multicentre clinical trial confirmed, in a considerable number of patients who underwent coronary angiography, the feasibility of 99mTc tetrofosmin (Myoview) rest/stress myocardial SPET using a very short protocol (2 h).
Authors:
R Montz; M J Perez-Castejón; J A Jurado; J Martín-Comín; E Esplugues; L Salgado; A Ventosa; G Cantinho; E P Sá; A T Fonseca; M R Vieira
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Publication Detail:
Type:  Clinical Trial; Clinical Trial, Phase III; Comparative Study; Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  European journal of nuclear medicine     Volume:  23     ISSN:  0340-6997     ISO Abbreviation:  Eur J Nucl Med     Publication Date:  1996 Jun 
Date Detail:
Created Date:  1996-10-29     Completed Date:  1996-10-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7606882     Medline TA:  Eur J Nucl Med     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  639-47     Citation Subset:  IM    
Affiliation:
Universidad Complutense, Madrid, Spain.
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MeSH Terms
Descriptor/Qualifier:
Coronary Angiography*
Coronary Disease / radiography,  radionuclide imaging*
Exercise Test
Female
Heart / radionuclide imaging*
Humans
Male
Middle Aged
Organophosphorus Compounds / diagnostic use*
Organotechnetium Compounds / diagnostic use*
Sensitivity and Specificity
Time Factors
Tomography, Emission-Computed, Single-Photon*
Chemical
Reg. No./Substance:
0/Organophosphorus Compounds; 0/Organotechnetium Compounds; 0/technetium Tc 99m 1,2-bis(bis(2-ethoxyethyl)phosphino)ethane

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


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