Diagnostic value of stress thallium-201/rest technetium-99m-sestamibi sequential dual isotope high-speed myocardial perfusion imaging for the detection of haemodynamically relevant coronary artery stenosis
Journal Article
·
· Journal of Nuclear Cardiology (Online)
- University Hospital, Department of Cardiology (France)
- University Hospital, Department of Nuclear medicine (France)
- Grenoble Alpes University Hospital, Center of Clinical Investigations (France)
- INSERM U1039, Bioclinic Radiopharmaceutics Laboratory (France)
Background: The aim of this study was to determine the diagnostic accuracy of stress thallium-201/rest technetium-99m-sestamibi sequential dual-isotope high-speed myocardial perfusion imaging (DI-HS-MPI) against invasively determined fractional flow reserve (FFR). Methods: Fifty-four consecutive patients prospectively underwent DI-HS-MPI before invasive coronary angiography. Perfusion was scored visually by summed stress score on a patient and coronary territory basis. Significant coronary artery disease (CAD) was defined by the presence of ≥ 90% stenosis/occlusion or fractional flow reserve ≤ 0.80 for coronary stenosis ≥ 50%. Results: FFR was measured in 69 of 162 coronary vessels, with 1.28 ± 0.56 vessels assessed/patient. Sensitivity, specificity, and diagnostic accuracy of MPI for the detection of significant CAD were 92.8%, 69.2%, and 81.4%, on a patient basis, and 83.7%, 90.4%, and 88.8% by coronary territory. Conclusions: DI-HS-MPI accurately detects functionally significant CAD as defined by using FFR.
- OSTI ID:
- 22962013
- Journal Information:
- Journal of Nuclear Cardiology (Online), Journal Name: Journal of Nuclear Cardiology (Online) Journal Issue: 4 Vol. 26; ISSN 1532-6551
- Country of Publication:
- United States
- Language:
- English
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