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For brain single photon emission computed tomography (SPECT), gamma cameras with multiple detectors (multihead cameras) are recommended. Although a single-head camera may be used for image acquisition, multihead cameras have two- or three-times higher sensitivity than those of single-head cameras, which can reduce scan time and enhance image quality. However, as only a few multihead gamma cameras...
The glucose analog 18F-fluorodeoxyglucose (FDG) provided, for the first time, the ability to noninvasively probe and characterize the regional metabolism of glucose as a major fuel substrate of the heart. Positron emission tomography (PET) became a tool for demonstrating the metabolic processes directly in the myocardium. Clinical studies showed the dependency of the heart’s substrate selection on...
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