A PET scan is a nuclear medicine imaging test that makes use of a type of radioactive sugar to create images of body function and metabolism. PET imaging can be utilized to evaluate regular and abnormal biological function of cells and organs.
Psychiatry : Numerous compounds that bind selectively to neuroreceptors of interest in organic psychiatry have been radiolabeled with C-eleven or F-18. Radioligands that bind to dopamine receptors (D1, 13 D2 receptor, 14 15 reuptake transporter), serotonin receptors (5HT1A, 5HT2A, reuptake transporter) opioid receptors (mu) and different websites have been used efficiently in research with human topics. Studies have been performed inspecting the state of these receptors in sufferers compared to wholesome controls in schizophrenia , substance abuse , temper disorders and other psychiatric situations.
Although having a radioactive injection may sound dangerous, you solely have a small amount of radiation given to you. The radiation goes away (decays) very quickly and it does not make you feel unwell. Drinking lots after the scan will assist flush the drug out of your system. Before having any take a look at, doctors ensure the benefits outweigh any possible dangers.
Because the half-lifetime of fluorine-18 is about two hours, the prepared dose of a radiopharmaceutical bearing this radionuclide will bear multiple half-lives of decay through the working day. This necessitates frequent recalibration of the remaining dose (dedication of activity per unit volume) and cautious planning with respect to patient scheduling.