An exam that produces pictures (scans) of internal parts of the body. The patient is given an injection or swallows a small amount of radioactive material. A machine called a scanner then measures the radioactivity in certain organs.
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... for PET, this may allow on-site imaging, instead of referring patients to another center, or relying on a visit by a mobile scanner. RADIOISOTOPES Radionuclides used in PET scanning are typically isotopes with short half lives such as 11C (~20 min), 13N (~10 min), 15O (~2 min), and 18F (~110 min). ...
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