The use of positron-emitting radionuclides, especially 18 F labeled fluorodeoxy glucose (18 F-FDG), has increased recently due to its role in oncology. This has paved the way to look for other uses for these agents. The use of positron emission tomography (PET) as a noninvasive tool for imaging the heart in coronary artery disease to look for perfusion defects and viability has already been established. This has helped us to know the extent of myocardial blood flow, the metabolic changes occurring in the myocardium, and changes in the cardiac autonomic innervations in various pathological conditions.
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For Further Reading
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