does pet scan use contrast
CT scans take a fast series of x-ray pictures. The x-ray pictures are combined to create pictures of the soft tissues and bones in the area that was scanned. If you are having a CT scan, you may need to drink contrast beforehand. This is the same contrast that you would drink for your PET scan with the FDG tracer. If you are also having a CT scan done, ask your nurse for the resource Computed Tomography (CT) Scan.