This program instructs PET Technologists in the theory and clinical application of PET Respiratory Gated imaging on Discovery PET/CT scanners. Instruction is delivered by a GE PET Applications Specialist at the customer's facility. The training produces the best results when 1 to 4 Technologists are dedicated to the complete training session. It is also critical that key Physicians are available to review processing protocols and images. In addition, the patient schedule should be modified as indicated in the agenda to allow time for instruction.