PET/MRI with FDG
RadiationFor the PET/MRI scans, an intravenous (IV) catheter (thin tube) will be used to administer dyes (contrast) for both the MRI and PET portions of the examination. The dye for the PET portion will be 18F-fluorodeoxyglucose (FDG). FDG is an FDA-approved radioactive substance (isotope) that contains chemicals that can be traced by PET/MRI. The dye for the MRI portion will be a gadolinium based contrast medium which is also an FDA-approved substance that makes certain tissues, abnormalities or disease processes more clearly visible on MRI scans. MRI uses a strong magnetic field to create images of the body. Subjects will be asked to lie on a table that will slide into the scanner; Wear earplugs to reduce the noise made by the MRI scanner and lie still throughout the time in the scanner.