| Automated quantitative Rb-82 3D PET/CT myocardial perfusion imaging: Normal limits and correlation with invasive coronary angiography. | |
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MedLine Citation:
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PMID: 22203445 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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BACKGROUND: We aimed to characterize normal limits and to determine the diagnostic accuracy for an automated quantification of 3D 82-Rubidium (Rb-82) PET/CT myocardial perfusion imaging (MPI). METHODS: We studied 125 consecutive patients undergoing Rb-82 PET/CT MPI, including patients with suspected coronary artery disease (CAD) and invasive coronary angiography, and 42 patients with a low likelihood (LLk) of CAD. Normal limits for perfusion and function were derived from LLk patients. QPET software was used to quantify perfusion abnormality at rest and stress expressed as total perfusion deficit (TPD). RESULTS: Relative perfusion databases did not differ in any of the 17 segments between males and females. The areas under the receiver operating characteristic curve for detection of CAD were 0.86 for identification of ≥50% and ≥70% stenosis. The sensitivity/specificity was 86%/86% for detecting ≥50% stenosis and 93%/77% for ≥70% stenosis, respectively. In regard to normal limits, mean rest and stress left ventricular ejection fraction (LVEF) were 67% ± 10% and 75% ± 9%, respectively. Mean transient ischemic dilation ratio was 1.06 ± 0.14 and mean increase in LVEF with stress was 7.4% ± 6.1% (95th percentile of 0%). CONCLUSION: Normal limits have been established for 3D Rb-82 PET/CT analysis with QPET software. Fully automated quantification of myocardial perfusion PET data shows high diagnostic accuracy for detecting obstructive CAD. |
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Authors:
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Ryo Nakazato; Daniel S Berman; Damini Dey; Ludovic Le Meunier; Sean W Hayes; Jimmy S Fermin; Victor Y Cheng; Louise E J Thomson; John D Friedman; Guido Germano; Piotr J Slomka |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-12-28 |
Journal Detail:
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Title: Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology Volume: - ISSN: 1532-6551 ISO Abbreviation: - Publication Date: 2011 Dec |
Date Detail:
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Created Date: 2011-12-28 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9423534 Medline TA: J Nucl Cardiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Departments of Imaging and Medicine, and Cedars-Sinai Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Boulevard, Taper Building Suite A047, Los Angeles, CA, 90048, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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