IV "stick" This is painless though you may feel the pain of an IV as it si stuck into you during the test. The dye is not typically allergic and no pain is involved. Some patients feel claustrophobic.
No. It' just a diagnostic dose of radiation, like having a ct scan. (if someone thinks you need a pet scan which is a specialized test and expensive) it's probably safer for you to have it than to go without it.).
No. It's an expensive test that is reserved for specialized indications.
Is there something they will give me for anxiety when I'm doing the positron emission tomography scan?
Maybe. Taking a pet study is easy and painless. You will get an injection of a radioactive substance (glucose) and relax in a calm quiet area. Then the technologists will have you lay on a motorized table and you slowly are moved through two large open tubes that scan you. You won't feel anything otherwise and can keep your eyes open or closed. A relaxing medicine can be given if absolutely necessary.
See. Radiologyinfo. Org and search pet scan.
Pet indications. Pet is good to show in vivo abnormal functional areas--it has limitations--it would be nice if cheaper, more available and the pictures come superimposed on MRI pictures---may benefit us in dementia--separate radiation necrosis from active brain tumour--separate infectious from degenerative area.
A couple things. I order these for atypical dementia presentations (brain pet) and cancer (whole body pet).
PET scan. Positron-emitting radionuclides are produced in a cyclotron or by a generator. Fluorine-18 is one radionuclide produced by proton bombardment of oxygen-18 in a cyclotron. When it is bound to a d-glucose analog, it forms 18-fluoro-2-deoxyglucose (fdg), which is transported into cells, and remains trapped as fdg-6 phosphate. End result is imaging of metabolic, physiologic, and pathologic processes.
A nuclear medicine s. A specialized nuclear medicine study usually performed to evaluate the presence of cancer.