Basic Science and Practical Issues -- The Nuclear Imaging Technologist and the Pediatric Patient -- Sedation of the Pediatric Patient -- The Biologic Effects of Low-Level Radiation -- Dosage of Radiopharmaceuticals and Internal Dosimetry -- Pediatric PET Research Regulations -- Issues in the Institutional Review Board Review of PET Scan Protocols -- Ethics of PET Research in Children -- Physics and Instrumentation in PET -- How to Image a Child by PET–Computed Tomography -- Coincidence Imaging -- Oncology -- Brain Tumors -- Lymphoma -- Neuroblastoma -- Wilms’ Tumor -- Primary Bone Tumors -- Soft Tissue Sarcomas -- Other Tumors -- Neurology and Psychiatry -- The Developing Brain -- Neurodevelopmental and Neuropsychiatric Disorders -- Epilepsy -- Neurotransmitter Imaging -- Other Applications -- Cardiovascular Applications -- Fever of Unknown Origin -- Infection and Inflammation -- Inflammatory Bowel Disease -- Hyperinsulinism of Infancy: Noninvasive Differential Diagnosis -- Hyperinsulinism of Infancy: Localization of Focal Forms -- Multimodal Imaging Using PET and MRI -- Current Research Efforts -- Imaging Atlas -- PET-Computed Tomography Atlas -- Common Artifacts on PET Imaging.