PET imaging using gamma cameras

This paper will review the recent advances and future developments in the f ield of coincidence imaging of positron emitters with a conventional Anger- type gamma camera. FDG imaging has shown high clinical importance in cardio logy, neurology and especially oncology. Since access to full ring PET is m ainly limited to university hospitals, there have been new developments all owing PET imaging on the standard Anger gamma camera. First the principles of coincidence imaging on a gamma camera will be reviewed. We will discuss the limitations of this technique, and the techniques used to partly overco me these limitations. The different configurations of the gamma camera oper ating in coincidence mode are pointed out. Different corrections for image degrading effects and reconstruction methods are evaluated in the final par t. (C) 2001 Elsevier Science Ltd. All rights reserved.