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- W2044675804 abstract "Positron Emission Tomography (PET) has several clinical and research applications in cardiovascular imaging. Myocardial perfusion imaging with PET allows accurate global and regional measurements of myocardial perfusion, myocardial blood flow and function at stress and rest in one exam. Simultaneous assessment of function and perfusion by PET with quantitative software is currently the routine practice. Combination of ejection fraction reserve with perfusion information may improve the identification of severe disease. The myocardial viability can be estimated by quantitative comparison of fluorodeoxyglucose (18FDG) and rest perfusion imaging. The myocardial blood flow and coronary flow reserve measurements are becoming routinely included in the clinical assessment due to enhanced dynamic imaging capabilities of the latest PET/CT scanners. Absolute flow measurements allow evaluation of the coronary microvascular dysfunction and provide additional prognostic and diagnostic information for coronary disease. Standard quantitative approaches to compute myocardial blood flow from kinetic PET data in automated and rapid fashion have been developed for 13N-ammonia, 15O-water and 82Rb radiotracers. The agreement between software methods available for such analysis is excellent. Relative quantification of 82Rb PET myocardial perfusion, based on comparisons to normal databases, demonstrates high performance for the detection of obstructive coronary disease. New tracers, such as 18F-flurpiridaz may allow further improvements in the disease detection. Computerized analysis of perfusion at stress and rest reduces the variability of the assessment as compared to visual analysis. PET quantification can be enhanced by precise coregistration with CT angiography. In emerging clinical applications, the potential to identify vulnerable plaques by quantification of atherosclerotic plaque uptake of 18FDG and 18F-sodium fluoride tracers in carotids, aorta and coronary arteries has been demonstrated." @default.
- W2044675804 created "2016-06-24" @default.
- W2044675804 creator A5054811122 @default.
- W2044675804 creator A5062520509 @default.
- W2044675804 creator A5066615785 @default.
- W2044675804 creator A5089319978 @default.
- W2044675804 date "2014-08-01" @default.
- W2044675804 modified "2023-09-30" @default.
- W2044675804 title "The role of PET quantification in cardiovascular imaging" @default.
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