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Positron Emission Tomography (PET)

As its name suggests, Positron Emission Tomography, or PET, uses detection of the subatomic particles called positrons as its diagnostic pathway. Through this positron emission, PET shows how organs are functioning, and when combined with CT (computed tomography), as it often is, also shows detailed views of the part of the body being studied.

PET and PET/CT are most often used in determining how clinical therapies are working, to evaluate disease progression, and/or to evaluate whether a growth is benign or malignant (cancerous). It can also be helpful in investigating neurological conditions such as Alzheimer's disease, therapy-resistant seizure disorders, as well as cardiovascular disease.

What to Expect

PET/CT is a technologically advanced diagnostic procedure and usually lasts about 2-3 hours. Extra time is needed to administer a small amount of the radioactive glucose solution that enables organ functions to be tested. Resting time is needed for about an hour following the injection.

For more Diagnostic Imaging information, please contact our Placerville or Cameron Park location.