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Parametric imaging of myocardial viability using ¹⁵O-labelled water and PET/CT: comparison with late gadolinium-enhanced CMR
Department of Nuclear Medicine & PET Research, VU University Medical Center, Amsterdam, The Netherlands .
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2012 (English)In: European Journal of Nuclear Medicine and Molecular Imaging, ISSN 1619-7070, E-ISSN 1619-7089, Vol. 39, no 8, 1240-1245 p.Article in journal (Refereed) Published
Abstract [en]

Purpose

The perfusable tissue index (PTI) is a marker of myocardial viability. Recent technological advances have made it possible to generate parametric PTI images from a single [15O]H2O PET/CT scan. The purpose of this study was to validate these parametric PTI images.

Methods

The study population comprised 46 patients with documented or suspected coronary artery disease who were studied with [15O]H2O PET and late gadolinium-enhanced (LGE) cardiac magnetic resonance imaging (CMR).

Results

Of the 736 myocardial segments included, 364 showed some degree of LGE. PTI and perfusable tissue fraction (PTF) diminished with increasing LGE. The areas under the curve of the PTI and PTF, used to predict (near) transmural LGE on CMR, were 0.86 and 0.87, respectively. Optimal sensitivity and specificity were 91 % and 73 % for PTI and 69 % and 87 % for PTF, respectively.

Conclusion

PTI and PTF assessed with a single [15O]H2O scan can be utilized as markers of myocardial viability in patients with coronary artery disease.

Place, publisher, year, edition, pages
2012. Vol. 39, no 8, 1240-1245 p.
National Category
Radiology, Nuclear Medicine and Medical Imaging
Identifiers
URN: urn:nbn:se:uu:diva-189065DOI: 10.1007/s00259-012-2134-8PubMedID: 22576999OAI: oai:DiVA.org:uu-189065DiVA: diva2:580595
Available from: 2012-12-23 Created: 2012-12-23 Last updated: 2017-12-06Bibliographically approved

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