PET/CT Patient Information
What to expect
After your medical history and the results of any prior examinations are reviewed, you'll
receive a radiopharmaceutical injection, which enables the radiologist to interpret the scan
results.
The radiopharmaceutical must first distribute itself throughout your body, so there will
be—typically—a 30 to 60-minute wait. You may be able to read or listen to music until
your scan begins. You may wish to bring your favorite CDs for us to play during
your scan.
If you are here for a brain scan, we'll ask you to relax in a quiet, dimly lit room, without
stimulating your brain by reading or talking.
If you are scheduled for a heart study, you may not have to wait at all. The radiopharmaceutical
used for cardiac exams are often administered jut before the scanning process begins.
What will the scan be like
You'll lie on a comfortable table that moves slowly through the ring-like PET/CT scanner
while it acquires the information needed to generate diagnostic images. We'll ask you to lie
very still because movement can interfere with the results.
The scan will take anywhere from 15 minutes to an hour. You will be comfortable during the
examination. Unless the radiologist sees a need for acquiring additional information, you may
get ready to leave.
How long does all this take
Plan on spending two to three hours with us. Your exam procedure will vary depending
on what we're looking for, and what we discover along the way. Your experience will not
be unpleasant, and our staff will do their utmost to make you comfortable and keep you informed
about your progress.
What happens after the examination
You may leave as soon as the scan is complete. Unless you've received special instructions, you'll
be able to eat and drink normally. We recommend that you drink plenty of fluids to help remove any
of the radiopharmaceutical that may still be in your system.
In the meantime, we'll begin preparing the results for review by our radiologist. Your physician will
discuss your results with you in detail.
Are there risks associated with PET/CT
A PET/CT study is similar to many other diagnostic procedures from MRI to Nuclear Medicine. Although
the radiation you receive is different, it's about equivalent to what you'd receive from a couple of chest
X-rays.
The radiopharmaceuticals used in the PET/CT do not remain in your system very long, so there is no
reason to avoid interacting with other people once you've left. To be extra safe, wait a few hours before
getting too close to an infant, or anyone who is pregnant.
Please consult your physician with any additional questions or concerns.
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