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Frequently Asked Questions

What is a PET scan?

Arizona Alzheimer's Consortium
A PET (Positron Emission Tomography) scan is a procedure in which a small amount of radioactive glucose (sugar) is injected into a vein, and a scanner is used to make detailed, computerized pictures of areas inside the body where the glucose is used. PET scans show the difference between healthy and abnormally functioning tissues and can illuminate the changes in a brain that has memory impairment.
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How often should I have a PET scan?

PET Scan: Frequently Asked Questions
If you are under a physician's care, you should follow your physician's recommendations for the frequency of having a PET scan. Typically, it is suggested that you have a follow-up scan at least every five years. for wellness scans, the frequency of having a scan is dependent on your family history, your lifestyle, and your age. Your physician can give you a better understanding of whether you are at risk for certain indications (i.e.
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How much radiation will I get from a PET scan?

PET Scan: Frequently Asked Questions
The amount of radiation you get from a PET scan is approximately equal to what you would get from a CT scan of your chest.
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Trigeminal Neuralgia , TN, tic douloreaux, is the trigeminal...
A PET scan, or Positron Emission Tomography scan, is an imaging technique that allows physicians to examine many organs of the body and is helpful in diagnosing many diseases, such as cancer. Other techniques, such as CT scan or MRI, only show organ structure, where as PET shows organ structure and function. PET is able to differentiate between malignant and benign tumors since it shows how the organ functions.
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Are there potential side effects to a PET scan?

PET Scan: Frequently Asked Questions
No, there are no side effects to having a PET scan performed. The only pain involved is the needle prick when you receive the radiopharmaceutical injection and it doesn't differ from any other type of injection.
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Keck
However, PET scans have been particularly useful in diagnosing of all types of cancer (e.g., lung, brain, skin), coronary heart disease, and all types of neurological problems, such as, epilepsy and Alzheimer's disease. For children, PET is a powerful tool for diagnosing brain tumors and other cancers as well as epilepsy.
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School of Medicine: Research: Core Facilities: PET Center Co...
P.E.T. (PET) means Positron Emission Tomography. Positron is an anti-matter of electrons. Positron emitting radionuclides include carbon-11 oxygen-15 nitrogen-13 and flourine-18. These atoms are physiologically important because they form carbohydrates, proteins and fatty acids. Hence, positron-emitting radionuclides can be used in labeling physiologically important molecules. With the help of these labeled molecules it is possible to access and get an image representing function of the body.
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How long will it take to perform an MRI, CT Scan, PET Scan or Ultrasound?

FAQ
MRI Scanning a single area without contrast will take about 20-40 minutes on the High Field MRI Scanner and 30-45 minutes on the High Field OPEN MRI. If the doctor has ordered multiple body parts to be scanned, then the scans will take longer. CT Scanning will take about 10 minutes for each test ordered. For PET Scans, plan to be here for about 2 hours. The scan itself will take about 35 minutes. Ultrasounds take about 20 minutes.
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Is a PET/CT scan painless?

FAQ - PET/CT - Washington Imaging Services
The only pain involved is the needle prick when you receive the radiopharmaceutical injection, which does not differ from any other type of injection.
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How does a PET scan work?

Frequently asked questions (WMIC - University of Manchester)
You will have a small injection of a radioactive substance. The injection enables the PET scanner to produce a picture which reveals important information and will assist the research team to learn more about your condition or treatment. What’s the difference between a PET scan and other imaging tests, such as CT and MRI? PET is a way of imaging how the body is functioning; this is different to CT and MRI, which are used to visualize the structure of the body.
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I am rather large and scared of closed places. Can I still get an MRI Scan, CT Scan or PET Scan?

FAQ
For other questions send an e-mail to Dr. George Privett at gwprivett@aol.com or call at 800-755-7441 or (859) 278-7226 in Lexington.
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How does a PET scan differ from CT or MRI scans?

PET Scan: Frequently Asked Questions
CT and MRI scans are "anatomic" imaging modalities, which means they look at size and shape of organs and body structures. A PET scan is a "metabolic" imaging modality, which means it looks at function. The information received from a PET scan is different from any other test that is available.
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I am rather large and afraid of closed spaces. Can I still get an MRI, CT or PET scan ?

FAQ
Both of our MRI scanners, CT scanners and our PET scanner are particularly suited for patients who are large or who have claustrophobia. Our Open MRI is so large and wide open that the patient is placed into the scanner sideways. Our high field MRI is much shorter than most MRI scanners as well as having a large opening which is flared. A family member can be in the room with you during the scan. Our MRI scanners hold large patients weighing up to 430 pounds.
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How do I prepare for a PET scan?

AsiaMedic PET/CT Centre
Patients should also bring all previous studies, including CT and/orn MR films and reports, as well as their chemotherapy history, including date of most recent treatment, with them. Patients must fast overnight prior to a PET scan. Afternoon patients may eat a light meal six hours prior to exam. Patients should drink water before beginning fast and drink lots of water after beginning fast. Continue to hydrate. Oncology patients must fast overnight, or at least 6 hours prior to PET scan.
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When will I receive the results of the PET scan?

OCMRI FAQ's
Patients undergo PET because their referring physician has recommended it. A radiologist who has specialized training in PET will interpret the images and forward a report to your referring physician. It usually takes one to three days to interpret, report and deliver the results. In order to facilitate interpretation, you may be asked to bring any previous radiological images with you, such as recent CT (CAT) scans or MRI images.
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Why am I having a PET scan?

Shared PET Imaging - Your PET Solutions Company! Mission Sta...
If your doctor has ordered a PET scan for you, it is likely that he or she wants more detailed information about a suspecious or abnormal finding on another test such as a CAT scan or MRI.
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How is a PET scan appointment scheduled?

Keck
Your referring physician will have someone from his or her office contact the USC PET Imaging Center to order the PET procedure you need. Alternatively, you may call the center directly at (213) 342-5940 once instructed by your physician, ask for Monica (mgarfiel@hsc.usc.edu).
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