Document Detail


Detection of acute myocardial infarction by 99mTc-labeled D-glucaric acid imaging in patients with acute chest pain.
MedLine Citation:
PMID:  10565778     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Definitive diagnosis of acute myocardial infarction early in the process is often difficult. An imaging agent that localized quickly and specifically in areas of acute necrosis could provide this critical diagnostic information. To determine whether imaging with 99mTc-labeled D-glucaric acid (GLA) could provide this information, we imaged a group of patients presenting with symptoms suggestive of acute infarction. METHODS: Twenty-eight patients presenting to the emergency department with symptoms highly suggestive of acute infarction were injected with 99mTC-GLA and imaged about 3 h later. RESULTS: The sensitivity of lesion detection was remarkably time dependent. Fourteen patients with acute infarction injected within 9 h of onset of chest pain had positive scans, even in the presence of persistent occlusion. The remaining 14 patients had negative scans. Nine patients with negative scans had acute infarction but were injected more than 9 h after onset of chest pain. The final diagnosis in the remaining 5 patients was unstable angina (3 injected <9 h and 2 injected >9 h after onset of chest pain). Six patients were reinjected with 99mTc-GLA 4-6 wk after their initial study to determine whether persistent positive scans occurred with this agent. All 6 had negative scans. CONCLUSION: This study suggests that 99mTc-GLA localizes in zones of acute myocardial necrosis when injected within 9 h of onset of infarction.
Authors:
G Mariani; G Villa; P F Rossettin; P Spallarossa; G P Bezante; C Brunelli; K Y Pak; B A Khaw; H W Strauss
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of nuclear medicine : official publication, Society of Nuclear Medicine     Volume:  40     ISSN:  0161-5505     ISO Abbreviation:  J. Nucl. Med.     Publication Date:  1999 Nov 
Date Detail:
Created Date:  1999-12-09     Completed Date:  1999-12-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0217410     Medline TA:  J Nucl Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1832-9     Citation Subset:  IM    
Affiliation:
Department of Internal Medicine, University of Genoa Medical School, Italy.
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MeSH Terms
Descriptor/Qualifier:
Aged
Angina, Unstable / radionuclide imaging
Chest Pain / radionuclide imaging
Female
Glucaric Acid / analogs & derivatives*,  diagnostic use
Heart / radionuclide imaging
Humans
Male
Middle Aged
Myocardial Infarction / diagnosis,  radionuclide imaging*
Organotechnetium Compounds / diagnostic use*
Radiopharmaceuticals / diagnostic use
Sensitivity and Specificity
Time Factors
Chemical
Reg. No./Substance:
0/Organotechnetium Compounds; 0/Radiopharmaceuticals; 0/technetium Tc 99m glucarate; 25525-21-7/Glucaric Acid

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