Tag: Medical imaging
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Contrast Agents Commonly Applied In Medical Imaging
Contrast agents emphasize or magnify the physiological features or functions that would otherwise, be invisible, weak or obscured in images. Contrast agents are commonly applied in vasculature and also employed in applications where the uptake of an agent by an organ is used to indicate the degree of functional or metabolic activity. Each agent is…
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Positron Emission Tomography (PET)
PET scan is an imaging technique which produces images of the body by detecting radiation or gamma rays emitted from the body after the patient is injected with radioactive substance. When a positron emitted by a radioactive substance bombards an electron in the tissue, two gamma rays are emitted in the opposite directions as shown…