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PET scan
[ pet skan ]
noun
- an image obtained by positron emission tomography, using a PET scanner.
- an examination performed with a PET scanner.
PET scan
- Short for positron emission tomography scan. A cross-sectional image of a metabolic process in a human or animal body produced by positron emission tomography.
PET scan
- Acronym for p ositron e mission t omography, a medical test that is especially useful in showing how tissue or an organ is functioning, as opposed to just showing structure. In a PET scan, radioactive atoms are introduced into the body, where their chemical behavior is exactly the same as similar nonradioactive atoms. The positrons emitted when these nuclei decay collide with electrons in surrounding tissue, producing gamma rays that can then be detected by instruments outside the body.
Notes
亚洲网紅露点 History and Origins
Origin of PET scan1
Example Sentences
To confirm the diagnosis, his doctor ordered a full-body PET scan, considered one of the best tests for early detection of the disease.
On Monday, he delivered a positive update in a Parade article, saying his doctors had 鈥渃arpet-bombed me for three more treatments鈥 after seeing improvement in a PET scan that was done halfway through chemo.
To determine the diagnostic accuracy of the results of CSF tests compared to the gold standard PET imaging, the Munich researchers evaluated the data of over 400 patients with suspected Alzheimer's disease who were given both a CSF amyloid test and a PET scan of the brain at LMU University Hospital between 2013 and 2024.
A positive blood biomarker test could also lead to significant mental and financial damage, with unnecessary and expensive procedures like an MRI, a PET scan or a spinal fluid test.
A simple blood test, taken as part of a research programme and backed up where necessary by a lumbar puncture and PET scan - which produce three-dimensional images of the inside of the body - can tell us if amyloid, a brain protein implicated in Alzheimer鈥檚 disease, is already present.
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