Document Detail


Determination of Myocardial Viability with ECG-Gated Fluorodeoxyglucose F-18 Positron Emission Tomography.
MedLine Citation:
PMID:  14516528     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: We hypothesize that ECG-gated positron emission tomography (PET) using Fluorodeoxyglucose F-18 (FDG) alone can determine myocardial viability by identifying dysfunctional myocardium with preserved glucose metabolism. We compared the contraction-metabolism pattern of gated FDG PET with the perfusion-metabolism pattern of conventional PET using N-13 ammonia (NH(3)) as a perfusion agent and FDG as a glucose metabolism agent in 21 consecutive patients with chronic coronary artery disease with left ventricular dysfunction (mean ejection fraction 23.6 +/- 7.7%).METHODS: The left ventricle was divided into 17 segments. Uptakes of NH(3) and FDG were scored from absent (0) to normal (4), and wall motion was scored from dyskinesia (-1) to normal (3). Scores were determined by the visual interpretation of the majority of 3 blinded expert readers. Viable myocardium was defined by normal or mildly reduced uptakes of both NH(3) and FDG, perfusion-metabolism mismatch on NH(3)-FDG PET, or normal to mildly reduced uptake of FDG with regional dysfunction on gated FDG PET.RESULTS: Gated FDG PET identified 184 segments as viable, all of which were determined as viable by NH(3)-FDG PET. Among 125 segments identified as nonviable by NH(3)-FDG PET, 76 segments were determined as nonviable by NH(3)-FDG PET. The results provided a positive and negative predictive value of gated FDG PET for the determination of myocardial viability to be 100% and 60.8%, respectively.CONCLUSIONS: Gated FDG PET has a high positive predictive value (100%) for the identification of viable myocardium.
Authors:
Hee Seung Bom; John P. Vansant; Roderic I. Pettigrew; C David Cooke; John R. Votaw; Ernest V. Garcia
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Clinical positron imaging : official journal of the Institute for Clinical P.E.T     Volume:  2     ISSN:  -     ISO Abbreviation:  Clin. Positron Imaging     Publication Date:  1999 Jul 
Date Detail:
Created Date:  2003-Sep-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9810966     Medline TA:  Clin Positron Imaging     Country:  -    
Other Details:
Languages:  ENG     Pagination:  183-190     Citation Subset:  -    
Affiliation:
Emory Center for Positron Emission Tomography, Atlanta, GA, USA
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