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Positron emission tomography (PET) [1] is a functional imaging technique that uses radioactive substances known as radiotracers to visualize and measure changes in metabolic processes, and in other physiological activities including blood flow, regional chemical composition, and absorption.
Shown above is a PET scan of hypermetabolic Astrocytoma in the brain. Many different illnesses can cause an increase in metabolic activity as the body combats illness and disease in order to heal itself. Hypermetabolism is a common symptom of various pathologies. Some of the most prevalent diseases characterized by hypermetabolism are listed below.
PET scanning is also used for diagnosis of brain disease, most notably because brain tumors, strokes, and neurondegenerative diseases (such as Alzheimer's disease and Parkinson's disease) all cause great changes in brain metabolism, which in turn causes detectable changes in PET scans. PET is probably most useful in early cases of certain ...
The foods you eat play an important role in helping you lose visceral fat. Even those traditionally considered to be “bad”—like full-fat dairy, fruit and popcorn—can aid in fat loss.
Positron emission tomography–computed tomography (better known as PET-CT or PET/CT) is a nuclear medicine technique which combines, in a single gantry, a positron emission tomography (PET) scanner and an x-ray computed tomography (CT) scanner, to acquire sequential images from both devices in the same session, which are combined into a single superposed (co-registered) image.
7. Soy Can Affect Fertility in Men. Soy has come a long way. Once dismissed as “hippie food,” today it’s a popular protein alternative for vegetarians and vegans.
Yes, you can lose weight with volume eating. “It can be a really useful approach for weight management,” Cording says. It’s just important to focus on low-calorie, nutrient-dense foods, Gans ...
PET is a functional imaging technique that produces a three-dimensional image of functional processes in the body. The system detects pairs of gamma rays emitted indirectly by a positron -emitting radionuclide ( tracer ), which is introduced into the body on a biologically active molecule.
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