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Doctor insights on: What Isotope Is Used In The Injection For A Pet Scan

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Dr. Guido Davidzon
280 doctors shared insights

Pet Scan (Definition)

Pet scans most often use a radioactive form of glucose, the energy source for most of the cells in our bodies. The pet scanner can detect and measure how much of the radioactive glucose analog, f-18 fdg, is in a particular organ or region. The areas using more glucose are hyper metabolic and generally more worrisome. Our brains and sometimes hearts prefer glucose as food, making ...Read more


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Could the florbetapir f18 injection for pet scan have any possible side effects?

Could the florbetapir f18 injection for pet scan have any possible side effects?

Low Risk - Headache: Florbetapir f18 (trade name amyvid) is a new pet imaging agent that helps to diagnose alzheimer's disease. From the clinical trials, side effects (also called adverse reactions) were quite unusual, with no serious ones. The most common side effect was headache, occurring in 1.8% of the patients. Next was musculoskeletal pain (0.8%), followed by nausea and fatigue (each at 0.6%). ...Read more

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What chemical is in the injection for pet scans?

What chemical is in the injection for pet scans?

F18-FDG: Different pet tracers exist for positron emitting scans (pet) scans. The most widely used for oncologic purpose is f18-fdg (fluorine-18-fludeoxyglucose) which is a modified glucose (fdg) attached to a radionuclide (f18) that emits gamma photons of 511 kev (energy) and has a physical half-life of 110 minutes. ...Read more

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Getting my first pet scan, will i get sick or nauseous from the radioactive medication/injection that i will receive?

Getting my first pet scan, will i get sick or nauseous from the radioactive medication/injection that i will receive?

Rarely: Becoming ill as a result of the radioactive injection (18-fdg) for a pet scan is extremely rare (i.e. It almost never occurs). However, *if* you are also having a ct scan *with contrast* at the time of your pet scan, this may make you feel warm or unusual during injection, and can rarely result in allergic reactions. If you have has such a reaction in the past, you should let the staff know! ...Read more

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Pet scan and 2 injections of thyroglobulin and i'm still breastfeeding how can I stop? My son is 19mns he doesn't need it just wants it

Pet scan and 2 injections of thyroglobulin and i'm still breastfeeding how can I stop? My son is 19mns he doesn't need it just wants it

Weaning: It is always hard to wean a child if they are breastfeeding for comfort, but the best thing to do is explain to him in simple terms that he is a big boy now, and be consistent- do not say yes one day and no the next. Cold turkey. He will cry but he will get over it. Buy him a little present for being a big boy-. ...Read more

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Will prolotherapy (including dextrose injections into my knee and lower back) a week before my PET scan affect the PET scan?

Will prolotherapy (including dextrose injections into my knee and lower back) a week before my PET scan affect the PET scan?

I,would wait: Prolo,therapy creates an inflammation, so,this may give mixed results to the test, plus the needle trauma will,also,show up. I,would wait,a,few,weeks,post,injections to be sure that the reading is accurate. ...Read more

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Are pet scans used for ovarian cancer?

Are pet scans used for ovarian cancer?

Not to diagnose: Pet/ct is not typically used to diagnose ovarian cancer, but may play a role in surgical planning or treatment followup. ...Read more

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What is a pet scan used for?

What is a pet scan used for?

Approved for cancer: Pet scan are approved for staging, response assessment and surveillance of certain types of cancers. However, any pathologic process that augments the consumption of glucose (such as infection or inflammation) can be evaluated, though these indications are not currently covered. In addition, pet scans are used to evaluate for brain cognitive disorder, heart ischemia and myocardial viability. ...Read more

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What can a pet scan show?

What can a pet scan show?

What is the question: Currently pet scans are widely use for evaluation of glucose metabolism in the body. In oncology, is use to for initial metabolic characterization of tumors, metastases as well as for treatment response and surveillance. In cardiology, pet scans are use to assess heart ischemia and viability and in neurology the study is use to evaluate cognitive disorders, epilepsy and brain tumors ...Read more

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Is it possible for pet scans to make a mistake?

Is it possible for pet scans to make a mistake?

Yes: Yes. As with all tests there can be some false positives and false negatives. If you think there may be a mistake you can always get a second opinion. ...Read more

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